Discussion:
[PATCH 3/3] zram: adjust the number of zram thread
(too old to reply)
Minchan Kim
2016-09-22 06:49:12 UTC
Permalink
It's pointless to keep many workers greater than the number of
online CPU so adjust the number of worker whenever changing
online CPU number.

Signed-off-by: Minchan Kim <***@kernel.org>
---
drivers/block/zram/zram_drv.c | 94 ++++++++++++++++++++++++++++++++-----------
1 file changed, 71 insertions(+), 23 deletions(-)

diff --git a/drivers/block/zram/zram_drv.c b/drivers/block/zram/zram_drv.c
index abab76e2cf28..a930f96f01ab 100644
--- a/drivers/block/zram/zram_drv.c
+++ b/drivers/block/zram/zram_drv.c
@@ -31,6 +31,7 @@
#include <linux/err.h>
#include <linux/idr.h>
#include <linux/sysfs.h>
+#include <linux/cpu.h>

#include "zram_drv.h"

@@ -987,6 +988,8 @@ struct zram_workers {
struct list_head worker_list;
wait_queue_head_t req_wait;
spinlock_t req_lock;
+
+ struct notifier_block notifier;
} workers;

struct bio_request {
@@ -1269,52 +1272,97 @@ static int zram_thread(void *data)
return 0;
}

-static void destroy_workers(void)
+static int __zram_cpu_notifier(void *dummy, unsigned long action,
+ unsigned long cpu)
{
struct zram_worker *worker;

- while (!list_empty(&workers.worker_list)) {
+ switch (action) {
+ case CPU_UP_PREPARE:
+ worker = kmalloc(sizeof(*worker), GFP_KERNEL);
+ if (!worker) {
+ pr_err("Can't allocate a worker\n");
+ return NOTIFY_BAD;
+ }
+
+ worker->task = kthread_run(zram_thread, NULL, "zramd-%lu", cpu);
+ if (IS_ERR(worker->task)) {
+ kfree(worker);
+ pr_err("Can't allocate a zram thread\n");
+ return NOTIFY_BAD;
+ }
+
+ spin_lock(&workers.req_lock);
+ list_add(&worker->list, &workers.worker_list);
+ spin_unlock(&workers.req_lock);
+ break;
+ case CPU_DEAD:
+ case CPU_UP_CANCELED:
+ spin_lock(&workers.req_lock);
+ WARN_ON(list_empty(&workers.worker_list));
+
worker = list_first_entry(&workers.worker_list,
- struct zram_worker,
- list);
- kthread_stop(worker->task);
+ struct zram_worker, list);
list_del(&worker->list);
+ spin_unlock(&workers.req_lock);
+
+ kthread_stop(worker->task);
kfree(worker);
+ break;
+ default:
+ break;
}
+ return NOTIFY_OK;
+}
+
+static int zram_cpu_notifier(struct notifier_block *nb,
+ unsigned long action, void *pcpu)
+{
+ unsigned long cpu = (unsigned long)pcpu;
+
+ return __zram_cpu_notifier(NULL, action, cpu);
+}
+
+static void destroy_workers(void)
+{
+ unsigned long cpu;
+
+ cpu_notifier_register_begin();
+ for_each_online_cpu(cpu)
+ __zram_cpu_notifier(NULL, CPU_UP_CANCELED, cpu);
+ __unregister_cpu_notifier(&workers.notifier);
+ cpu_notifier_register_done();

WARN_ON(workers.nr_running);
}

static int create_workers(void)
{
- int i;
- int nr_cpu = num_online_cpus();
- struct zram_worker *worker;
+ int cpu;

INIT_LIST_HEAD(&workers.worker_list);
INIT_LIST_HEAD(&workers.req_list);
spin_lock_init(&workers.req_lock);
init_waitqueue_head(&workers.req_wait);

- for (i = 0; i < nr_cpu; i++) {
- worker = kmalloc(sizeof(*worker), GFP_KERNEL);
- if (!worker)
- goto error;
-
- worker->task = kthread_run(zram_thread, NULL, "zramd-%d", i);
- if (IS_ERR(worker->task)) {
- kfree(worker);
- goto error;
- }
-
- list_add(&worker->list, &workers.worker_list);
+ workers.notifier.notifier_call = zram_cpu_notifier;
+ cpu_notifier_register_begin();
+ for_each_online_cpu(cpu) {
+ if (__zram_cpu_notifier(NULL, CPU_UP_PREPARE, cpu) ==
+ NOTIFY_BAD)
+ goto cleanup;
}

+ __register_cpu_notifier(&workers.notifier);
+ cpu_notifier_register_done();
+
return 0;
+cleanup:
+ for_each_online_cpu(cpu)
+ __zram_cpu_notifier(NULL, CPU_UP_CANCELED, cpu);
+ cpu_notifier_register_done();

-error:
- destroy_workers();
- return 1;
+ return -ENOMEM;
}

static int zram_rw_async_page(struct zram *zram,
--
2.7.4
Minchan Kim
2016-09-22 06:49:37 UTC
Permalink
zram supports stream-based parallel compression. IOW, it can support
parallel compression on SMP system only if each cpus has streams.
For example, assuming 4 CPU system, there are 4 sources for compressing
in system and each source must be located in each CPUs for full
parallel compression.

So, if there is *one* stream in the system, it cannot be compressed
in parallel although the system supports multiple CPUs. This patch
aims to overcome such weakness.

The idea is to use multiple background threads to compress pages
in idle CPU and foreground just queues BIOs without interrupting
while other CPUs consumes pages in BIO to compress.
It means zram begins to support asynchronous writeback to increase
write bandwidth.

1) test cp A to B as an example of single stream compression and
enhanced 36%.

x86_64, 4 CPU
Copy kernel source to zram
old: 3.4s, new: 2.2s

2) test per-process reclaim to swap: 524M
x86_64, 4 CPU:
old: 1.2s new: 0.3s

3) FIO benchamrk
random read was worse so it supports only write at the moment.
Later, We might revisit asynchronous read.

x86_64, 4 CPU:

FIO 1 job, /dev/zram0

seq-write 5538 10116 182.67%
rand-write 59616 98195 164.71%
seq-read 7369 7257 98.48%
rand-read 82373 82925 100.67%
mixed-seq(R) 2815 4059 144.19%
mixed-seq(W) 2805 4045 144.21%
mixed-rand(R) 32943 42378 128.64%
mixed-rand(W) 32869 42282 128.64%

FIO 4 job, /dev/zram0

seq-write 16786 31770 189.26%
rand-write 215260 408069 189.57%
seq-read 57146 56888 99.55%
rand-read 664328 671475 101.08%
mixed-seq(R) 11238 20624 183.52%
mixed-seq(W) 11199 20551 183.51%
mixed-rand(R) 104841 188426 179.73%
mixed-rand(W) 104605 188001 179.72%

FIO 1 job, ext4

seq-write 16305 27601 169.28%
rand-write 177941 275477 154.81%
seq-read 38066 37855 99.45%
rand-read 206088 200845 97.46%
mixed-seq(R) 11983 17357 144.85%
mixed-seq(W) 11941 17296 144.85%
mixed-rand(R) 87949 107100 121.78%
mixed-rand(W) 87750 106859 121.78%

FIO 4 job, ext4

seq-write 55879 53056 94.95%
rand-write 536301 519199 96.81%
seq-read 127204 126713 99.61%
rand-read 629397 636117 101.07%
mixed-seq(R) 40089 38045 94.90%
mixed-seq(W) 39949 37911 94.90%
mixed-rand(R) 276194 263282 95.33%
mixed-rand(W) 275571 262688 95.32%

For single stream, it is much better or tie for many cases but
4-stream cases, but seem to be not true. It's expected because
asynchronous IO causes more allocations, instructions, context sw
and lock contention so it loses 4~5% in write benchmark. Therefore,
asynchronous model is not win for full-stream workload compared
to old. Also, it wouldn't be good for power-sensitive system so
I want to make it optinal feature at this moment.

Signed-off-by: Minchan Kim <***@kernel.org>
---
Documentation/ABI/testing/sysfs-block-zram | 8 +
Documentation/blockdev/zram.txt | 1 +
drivers/block/zram/Kconfig | 15 +
drivers/block/zram/zram_drv.c | 450 ++++++++++++++++++++++++++++-
drivers/block/zram/zram_drv.h | 3 +
5 files changed, 474 insertions(+), 3 deletions(-)

diff --git a/Documentation/ABI/testing/sysfs-block-zram b/Documentation/ABI/testing/sysfs-block-zram
index 4518d30b8c2e..5b1cd62aec66 100644
--- a/Documentation/ABI/testing/sysfs-block-zram
+++ b/Documentation/ABI/testing/sysfs-block-zram
@@ -175,3 +175,11 @@ Contact: Sergey Senozhatsky <***@gmail.com>
device's debugging info useful for kernel developers. Its
format is not documented intentionally and may change
anytime without any notice.
+
+What: /sys/block/zram<id>/use_aio
+Date: July 2017
+Contact: Minchan Kim <***@kernel.org>
+Description:
+ The use_aio file is read/write and to enable asynchronous
+ write support using multiple CPUs.
+ It increases write throughput in multiple CPU system.
diff --git a/Documentation/blockdev/zram.txt b/Documentation/blockdev/zram.txt
index 0535ae1f73e5..3692be05d1c7 100644
--- a/Documentation/blockdev/zram.txt
+++ b/Documentation/blockdev/zram.txt
@@ -183,6 +183,7 @@ pages_compacted RO the number of pages freed during compaction
(available only via zram<id>/mm_stat node)
compact WO trigger memory compaction
debug_stat RO this file is used for zram debugging purposes
+use_aio RW enable asynchronous compression using multiple CPUs

WARNING
=======
diff --git a/drivers/block/zram/Kconfig b/drivers/block/zram/Kconfig
index b8ecba6dcd3b..20ca28563c05 100644
--- a/drivers/block/zram/Kconfig
+++ b/drivers/block/zram/Kconfig
@@ -13,3 +13,18 @@ config ZRAM
disks and maybe many more.

See zram.txt for more information.
+
+config ZRAM_ASYNC_IO
+ bool "support asynchronous IO"
+ depends on ZRAM && SMP
+ default n
+ help
+ By default zram uses stream-based compression so it can use
+ every CPU only if every CPU has streams. However, it gives
+ poor performance on single-stream workload.
+
+ This implementation uses a background thread per core and
+ compress a stream by multiple core.
+
+ You can disable the feature "echo 0 > /sys/block/zramx/use_aio"
+ before setting disksize.
diff --git a/drivers/block/zram/zram_drv.c b/drivers/block/zram/zram_drv.c
index 6fa3ee6fabb7..abab76e2cf28 100644
--- a/drivers/block/zram/zram_drv.c
+++ b/drivers/block/zram/zram_drv.c
@@ -27,6 +27,7 @@
#include <linux/slab.h>
#include <linux/string.h>
#include <linux/vmalloc.h>
+#include <linux/kthread.h>
#include <linux/err.h>
#include <linux/idr.h>
#include <linux/sysfs.h>
@@ -366,6 +367,48 @@ static ssize_t comp_algorithm_store(struct device *dev,
return len;
}

+#ifdef CONFIG_ZRAM_ASYNC_IO
+static ssize_t use_aio_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ bool val;
+ struct zram *zram = dev_to_zram(dev);
+
+ down_read(&zram->init_lock);
+ val = zram->use_aio;
+ up_read(&zram->init_lock);
+
+ return scnprintf(buf, PAGE_SIZE, "%d\n", val);
+}
+
+static ssize_t use_aio_store(struct device *dev,
+ struct device_attribute *attr, const char *buf, size_t len)
+{
+ int ret;
+ u16 do_async;
+ struct zram *zram = dev_to_zram(dev);
+
+ ret = kstrtou16(buf, 10, &do_async);
+ if (ret)
+ return ret;
+
+ down_write(&zram->init_lock);
+ if (init_done(zram)) {
+ up_write(&zram->init_lock);
+ pr_info("Can't change for initialized device\n");
+ return -EBUSY;
+ }
+
+ if (do_async)
+ zram->use_aio = true;
+ else
+ zram->use_aio = false;
+ up_write(&zram->init_lock);
+
+ return len;
+}
+#endif
+
static ssize_t compact_store(struct device *dev,
struct device_attribute *attr, const char *buf, size_t len)
{
@@ -923,6 +966,389 @@ static void __zram_make_sync_request(struct zram *zram, struct bio *bio)
zram_meta_put(zram);
}

+
+#ifdef CONFIG_ZRAM_ASYNC_IO
+/*
+ * A number of page a worker can isolate from request queue all at once.
+ * It's a magic number got from the experiment via testing x86 and ARM.
+ */
+const int NR_BATCH_PAGES = 32;
+
+struct zram_worker {
+ struct task_struct *task;
+ struct list_head list;
+};
+
+struct zram_workers {
+ struct list_head req_list;
+ unsigned int nr_req;
+
+ int nr_running;
+ struct list_head worker_list;
+ wait_queue_head_t req_wait;
+ spinlock_t req_lock;
+} workers;
+
+struct bio_request {
+ struct bio *bio; /* a bio structure to free when IO is done */
+ atomic_t nr_pages; /* the number of pages a bio include */
+};
+
+struct page_request {
+ struct zram *zram;
+ struct bio_request *bio_req;
+ struct bio_vec bvec;
+ u32 index;
+ int offset;
+ bool write;
+ struct list_head list;
+};
+
+static void worker_wake_up(void)
+{
+ /*
+ * Unless it's enough workes to handle accumulated requests,
+ * wake up new workers.
+ */
+ if (workers.nr_running * NR_BATCH_PAGES < workers.nr_req) {
+ int nr_wakeup = (workers.nr_req + NR_BATCH_PAGES) /
+ NR_BATCH_PAGES - workers.nr_running;
+
+ wake_up_nr(&workers.req_wait, nr_wakeup);
+ }
+}
+
+static void zram_unplug(struct blk_plug_cb *cb, bool from_schedule)
+{
+ spin_lock(&workers.req_lock);
+ if (workers.nr_req)
+ worker_wake_up();
+ spin_unlock(&workers.req_lock);
+ kfree(cb);
+}
+
+static int zram_check_plugged(void)
+{
+ return !!blk_check_plugged(zram_unplug, NULL,
+ sizeof(struct blk_plug_cb));
+}
+
+int queue_page_request(struct zram *zram, struct bio_vec *bvec, u32 index,
+ int offset, bool write)
+{
+ struct page_request *page_req = kmalloc(sizeof(*page_req), GFP_NOIO);
+
+ if (!page_req)
+ return -ENOMEM;
+
+ page_req->bio_req = NULL;
+ page_req->zram = zram;
+ page_req->bvec = *bvec;
+ page_req->index = index;
+ page_req->offset = offset;
+ page_req->write = write;
+
+ spin_lock(&workers.req_lock);
+ list_add(&page_req->list, &workers.req_list);
+ workers.nr_req++;
+ if (!zram_check_plugged())
+ worker_wake_up();
+ spin_unlock(&workers.req_lock);
+
+ return 0;
+}
+
+int queue_page_request_list(struct zram *zram, struct bio_request *bio_req,
+ struct bio_vec *bvec, u32 index, int offset,
+ bool write, struct list_head *page_list)
+{
+ struct page_request *page_req = kmalloc(sizeof(*page_req), GFP_NOIO);
+
+ if (!page_req) {
+ while (!list_empty(page_list)) {
+ page_req = list_first_entry(page_list,
+ struct page_request, list);
+ list_del(&page_req->list);
+ kfree(page_req);
+ }
+
+ return -ENOMEM;
+ }
+
+ page_req->bio_req = bio_req;
+ page_req->zram = zram;
+ page_req->bvec = *bvec;
+ page_req->index = index;
+ page_req->offset = offset;
+ page_req->write = write;
+ atomic_inc(&bio_req->nr_pages);
+
+ list_add_tail(&page_req->list, page_list);
+
+ return 0;
+}
+
+/*
+ * @page_list: pages isolated from request queue
+ */
+static void get_page_requests(struct list_head *page_list)
+{
+ struct page_request *page_req;
+ int nr_pages;
+
+ for (nr_pages = 0; nr_pages < NR_BATCH_PAGES; nr_pages++) {
+ if (list_empty(&workers.req_list))
+ break;
+
+ page_req = list_first_entry(&workers.req_list,
+ struct page_request, list);
+ list_move(&page_req->list, page_list);
+ }
+
+ workers.nr_req -= nr_pages;
+}
+
+/*
+ * move @page_list to request queue and wake up workers if it is necessary.
+ */
+static void run_worker(struct bio *bio, struct list_head *page_list,
+ unsigned int nr_pages)
+{
+ WARN_ON(list_empty(page_list));
+
+ spin_lock(&workers.req_lock);
+ list_splice_tail(page_list, &workers.req_list);
+ workers.nr_req += nr_pages;
+ if (bio->bi_opf & REQ_SYNC || !zram_check_plugged())
+ worker_wake_up();
+ spin_unlock(&workers.req_lock);
+}
+
+static bool __zram_make_async_request(struct zram *zram, struct bio *bio)
+{
+ int offset;
+ u32 index;
+ struct bio_vec bvec;
+ struct bvec_iter iter;
+ LIST_HEAD(page_list);
+ struct bio_request *bio_req;
+ unsigned int nr_pages = 0;
+ bool write = op_is_write(bio_op(bio));
+
+ if (!zram->use_aio || !op_is_write(bio_op(bio)))
+ return false;
+
+ bio_req = kmalloc(sizeof(*bio_req), GFP_NOIO);
+ if (!bio_req)
+ return false;
+
+ index = bio->bi_iter.bi_sector >> SECTORS_PER_PAGE_SHIFT;
+ offset = (bio->bi_iter.bi_sector &
+ (SECTORS_PER_PAGE - 1)) << SECTOR_SHIFT;
+
+ bio_req->bio = bio;
+ atomic_set(&bio_req->nr_pages, 0);
+
+ bio_for_each_segment(bvec, bio, iter) {
+ int max_transfer_size = PAGE_SIZE - offset;
+
+ if (bvec.bv_len > max_transfer_size) {
+ struct bio_vec bv;
+
+ bv.bv_page = bvec.bv_page;
+ bv.bv_len = max_transfer_size;
+ bv.bv_offset = bvec.bv_offset;
+
+ if (queue_page_request_list(zram, bio_req, &bv,
+ index, offset, write, &page_list))
+ goto fail;
+
+ bv.bv_len = bvec.bv_len - max_transfer_size;
+ bv.bv_offset += max_transfer_size;
+ if (queue_page_request_list(zram, bio_req, &bv,
+ index + 1, 0, write, &page_list))
+ goto fail;
+ } else {
+ if (queue_page_request_list(zram, bio_req, &bvec,
+ index, offset, write, &page_list))
+ goto fail;
+ }
+
+ nr_pages++;
+ update_position(&index, &offset, &bvec);
+ }
+
+ run_worker(bio, &page_list, nr_pages);
+
+ return true;
+fail:
+ kfree(bio_req);
+
+ WARN_ON(!list_empty(&page_list));
+
+ return false;
+}
+
+void page_requests_rw(struct list_head *page_list)
+{
+ struct page_request *page_req;
+ bool write;
+ struct page *page;
+ struct zram *zram;
+ int err;
+ bool free_bio;
+ struct bio_request *bio_req;
+
+ while (!list_empty(page_list)) {
+ free_bio = false;
+ page_req = list_last_entry(page_list, struct page_request,
+ list);
+ write = page_req->write;
+ page = page_req->bvec.bv_page;
+ zram = page_req->zram;
+ bio_req = page_req->bio_req;
+ if (bio_req && atomic_dec_and_test(&bio_req->nr_pages))
+ free_bio = true;
+ list_del(&page_req->list);
+
+ err = zram_bvec_rw(zram, &page_req->bvec, page_req->index,
+ page_req->offset, page_req->write);
+
+ kfree(page_req);
+
+ /* page-based request */
+ if (!bio_req) {
+ page_endio(page, write, err);
+ zram_meta_put(zram);
+ /* bio-based request */
+ } else if (free_bio) {
+ if (likely(!err))
+ bio_endio(bio_req->bio);
+ else
+ bio_io_error(bio_req->bio);
+ kfree(bio_req);
+ zram_meta_put(zram);
+ }
+ }
+}
+
+static int zram_thread(void *data)
+{
+ DEFINE_WAIT(wait);
+ LIST_HEAD(page_list);
+
+ spin_lock(&workers.req_lock);
+ workers.nr_running++;
+
+ while (!kthread_should_stop()) {
+ if (list_empty(&workers.req_list)) {
+ prepare_to_wait_exclusive(&workers.req_wait, &wait,
+ TASK_INTERRUPTIBLE);
+ workers.nr_running--;
+ spin_unlock(&workers.req_lock);
+ schedule();
+ spin_lock(&workers.req_lock);
+ finish_wait(&workers.req_wait, &wait);
+ workers.nr_running++;
+ continue;
+ }
+
+ get_page_requests(&page_list);
+ if (list_empty(&page_list))
+ continue;
+
+ spin_unlock(&workers.req_lock);
+ page_requests_rw(&page_list);
+ cond_resched();
+ spin_lock(&workers.req_lock);
+ }
+
+ workers.nr_running--;
+ spin_unlock(&workers.req_lock);
+
+ return 0;
+}
+
+static void destroy_workers(void)
+{
+ struct zram_worker *worker;
+
+ while (!list_empty(&workers.worker_list)) {
+ worker = list_first_entry(&workers.worker_list,
+ struct zram_worker,
+ list);
+ kthread_stop(worker->task);
+ list_del(&worker->list);
+ kfree(worker);
+ }
+
+ WARN_ON(workers.nr_running);
+}
+
+static int create_workers(void)
+{
+ int i;
+ int nr_cpu = num_online_cpus();
+ struct zram_worker *worker;
+
+ INIT_LIST_HEAD(&workers.worker_list);
+ INIT_LIST_HEAD(&workers.req_list);
+ spin_lock_init(&workers.req_lock);
+ init_waitqueue_head(&workers.req_wait);
+
+ for (i = 0; i < nr_cpu; i++) {
+ worker = kmalloc(sizeof(*worker), GFP_KERNEL);
+ if (!worker)
+ goto error;
+
+ worker->task = kthread_run(zram_thread, NULL, "zramd-%d", i);
+ if (IS_ERR(worker->task)) {
+ kfree(worker);
+ goto error;
+ }
+
+ list_add(&worker->list, &workers.worker_list);
+ }
+
+ return 0;
+
+error:
+ destroy_workers();
+ return 1;
+}
+
+static int zram_rw_async_page(struct zram *zram,
+ struct bio_vec *bv, u32 index, int offset,
+ bool is_write)
+{
+ if (!zram->use_aio || !is_write)
+ return 1;
+
+ return queue_page_request(zram, bv, index, offset, is_write);
+}
+#else
+static bool __zram_make_async_request(struct zram *zram, struct bio *bio)
+{
+ return false;
+}
+
+static int zram_rw_async_page(struct zram *zram,
+ struct bio_vec *bv, u32 index, int offset,
+ bool is_write)
+{
+ return 1;
+}
+
+static int create_workers(void)
+{
+ return 0;
+}
+
+static void destroy_workers(void)
+{
+}
+#endif
+
/*
* Handler function for all zram I/O requests.
*/
@@ -954,6 +1380,9 @@ static blk_qc_t zram_make_request(struct request_queue *queue, struct bio *bio)
goto out;
}

+ if (__zram_make_async_request(zram, bio))
+ goto out;
+
__zram_make_sync_request(zram, bio);
out:
return BLK_QC_T_NONE;
@@ -1028,8 +1457,12 @@ static int zram_rw_page(struct block_device *bdev, sector_t sector,
bv.bv_len = PAGE_SIZE;
bv.bv_offset = 0;

- err = zram_rw_sync_page(bdev, zram, &bv, index, offset, is_write);
+ err = zram_rw_async_page(zram, &bv, index, offset, is_write);
+ if (!err)
+ goto out;

+ err = zram_rw_sync_page(bdev, zram, &bv, index, offset, is_write);
+out:
return err;
}

@@ -1066,7 +1499,6 @@ static void zram_reset_device(struct zram *zram)
/* Reset stats */
memset(&zram->stats, 0, sizeof(zram->stats));
zram->disksize = 0;
-
set_capacity(zram->disk, 0);
part_stat_set_all(&zram->disk->part0, 0);

@@ -1211,6 +1643,9 @@ static DEVICE_ATTR_RW(mem_limit);
static DEVICE_ATTR_RW(mem_used_max);
static DEVICE_ATTR_RW(max_comp_streams);
static DEVICE_ATTR_RW(comp_algorithm);
+#ifdef CONFIG_ZRAM_ASYNC_IO
+static DEVICE_ATTR_RW(use_aio);
+#endif

static struct attribute *zram_disk_attrs[] = {
&dev_attr_disksize.attr,
@@ -1231,6 +1666,9 @@ static struct attribute *zram_disk_attrs[] = {
&dev_attr_mem_used_max.attr,
&dev_attr_max_comp_streams.attr,
&dev_attr_comp_algorithm.attr,
+#ifdef CONFIG_ZRAM_ASYNC_IO
+ &dev_attr_use_aio.attr,
+#endif
&dev_attr_io_stat.attr,
&dev_attr_mm_stat.attr,
&dev_attr_debug_stat.attr,
@@ -1261,7 +1699,9 @@ static int zram_add(void)
device_id = ret;

init_rwsem(&zram->init_lock);
-
+#ifdef CONFIG_ZRAM_ASYNC_IO
+ zram->use_aio = true;
+#endif
queue = blk_alloc_queue(GFP_KERNEL);
if (!queue) {
pr_err("Error allocating disk queue for device %d\n",
@@ -1485,6 +1925,9 @@ static int __init zram_init(void)
num_devices--;
}

+ if (create_workers())
+ goto out_error;
+
return 0;

out_error:
@@ -1495,6 +1938,7 @@ static int __init zram_init(void)
static void __exit zram_exit(void)
{
destroy_devices();
+ destroy_workers();
}

module_init(zram_init);
diff --git a/drivers/block/zram/zram_drv.h b/drivers/block/zram/zram_drv.h
index 74fcf10da374..3f62501f619f 100644
--- a/drivers/block/zram/zram_drv.h
+++ b/drivers/block/zram/zram_drv.h
@@ -119,5 +119,8 @@ struct zram {
* zram is claimed so open request will be failed
*/
bool claim; /* Protected by bdev->bd_mutex */
+#ifdef CONFIG_ZRAM_ASYNC_IO
+ bool use_aio;
+#endif
};
#endif
--
2.7.4
Sergey Senozhatsky
2016-09-29 03:18:52 UTC
Permalink
Hello Minchan,
Post by Minchan Kim
zram supports stream-based parallel compression. IOW, it can support
parallel compression on SMP system only if each cpus has streams.
For example, assuming 4 CPU system, there are 4 sources for compressing
in system and each source must be located in each CPUs for full
parallel compression.
So, if there is *one* stream in the system, it cannot be compressed
in parallel although the system supports multiple CPUs. This patch
aims to overcome such weakness.
The idea is to use multiple background threads to compress pages
in idle CPU and foreground just queues BIOs without interrupting
while other CPUs consumes pages in BIO to compress.
It means zram begins to support asynchronous writeback to increase
write bandwidth.
1) test cp A to B as an example of single stream compression and
enhanced 36%.
x86_64, 4 CPU
Copy kernel source to zram
old: 3.4s, new: 2.2s
2) test per-process reclaim to swap: 524M
old: 1.2s new: 0.3s
3) FIO benchamrk
random read was worse so it supports only write at the moment.
Later, We might revisit asynchronous read.
sorry for long reply.

frankly speaking, sorry, I'm very skeptical about the patch set.

from your tests it seems that only a tiny corner case can gain some
extra performance: when we have SMP system with multiple CPUs, but
*guaranteed* only one process doing *only* one type of requests.
as soon as this process starts to do things simultaneously (like
mixed READ-WRITE) _or_ there are several processes: we are done. and
for that tiny corner case we are about to add a complex logic and a
big pile of code. I'm quite sure I'll never enable CONFIG_ZRAM_ASYNC_IO.
why would you enable it? I mean what setups you are looking at that will
benefit? hosting a CVS repository? :) just kidding.

are there any block devices being specifically optimized for a "one
process doing one OP" cases?

my tests show a dramatic performance drop down with NEW zram.
even "one" process case (one fio job) is almost x3 slower.
somtimes WRITE test case even go from MB/s to KB/s

WRITE: 3181.4MB/s→ 948111KB/s


I've attached the .config


ENV
===

x86_64 SMP (4 CPUs), "bare zram" 2g, lzo, static compression buffer.


TEST COMMAND
============

ZRAM_SIZE=2G ZRAM_COMP_ALG=lzo LOG_SUFFIX={NEW, OLD} FIO_LOOPS=2 ./zram-fio-test.sh


EXECUTED TESTS
==============

- [seq-read]
- [rand-read]
- [seq-write]
- [rand-write]
- [mixed-seq]
- [mixed-rand]


RESULTS
=======

# ./fio-perf-o-meter.sh test-fio-zram-OLD test-fio-zram-NEW
Processing test-fio-zram-OLD
Processing test-fio-zram-NEW


OLD NEW

#jobs1
READ: 2345.1MB/s 2373.2MB/s
READ: 1948.2MB/s 1987.7MB/s
WRITE: 1292.7MB/s 275277KB/s
WRITE: 1047.5MB/s 257140KB/s
READ: 429530KB/s 175450KB/s
WRITE: 429840KB/s 175576KB/s
READ: 414074KB/s 164091KB/s
WRITE: 414402KB/s 164221KB/s
#jobs2
READ: 4484.7MB/s 4532.7MB/s
READ: 3705.7MB/s 3744.6MB/s
WRITE: 2170.7MB/s 492404KB/s
WRITE: 1864.4MB/s 470723KB/s
READ: 829949KB/s 340146KB/s
WRITE: 830065KB/s 340194KB/s
READ: 805639KB/s 336380KB/s
WRITE: 807140KB/s 337006KB/s
#jobs3
READ: 5920.1MB/s 6025.6MB/s
READ: 4845.5MB/s 5037.5MB/s
WRITE: 2956.3MB/s 777683KB/s
WRITE: 2525.7MB/s 727868KB/s
READ: 1083.6MB/s 507481KB/s
WRITE: 1085.1MB/s 508634KB/s
READ: 1114.2MB/s 493014KB/s
WRITE: 1114.7MB/s 492849KB/s
#jobs4
READ: 7819.3MB/s 7897.2MB/s
READ: 6445.4MB/s 6604.7MB/s
WRITE: 3737.3MB/s 1002.6MB/s
WRITE: 3232.5MB/s 974777KB/s
READ: 1447.1MB/s 592012KB/s
WRITE: 1448.5MB/s 592205KB/s
READ: 1427.5MB/s 569307KB/s
WRITE: 1428.1MB/s 569881KB/s
#jobs5
READ: 7201.2MB/s 7560.1MB/s
READ: 5710.4MB/s 6078.4MB/s
WRITE: 3635.1MB/s 989502KB/s
WRITE: 3131.6MB/s 949969KB/s
READ: 1428.4MB/s 650856KB/s
WRITE: 1429.7MB/s 651182KB/s
READ: 1413.9MB/s 644587KB/s
WRITE: 1412.6MB/s 644328KB/s
#jobs6
READ: 7252.5MB/s 7248.2MB/s
READ: 6150.2MB/s 6396.7MB/s
WRITE: 3583.3MB/s 954890KB/s
WRITE: 2994.2MB/s 921172KB/s
READ: 1444.6MB/s 768636KB/s
WRITE: 1445.7MB/s 769178KB/s
READ: 1350.3MB/s 652676KB/s
WRITE: 1349.3MB/s 652063KB/s
#jobs7
READ: 7681.4MB/s 7579.9MB/s
READ: 6018.5MB/s 6247.6MB/s
WRITE: 3819.3MB/s 978.54MB/s
WRITE: 3143.7MB/s 962585KB/s
READ: 1473.1MB/s 815388KB/s
WRITE: 1473.9MB/s 814944KB/s
READ: 1389.6MB/s 610843KB/s
WRITE: 1388.9MB/s 610764KB/s
#jobs8
READ: 7658.5MB/s 7818.4MB/s
READ: 6047.2MB/s 6021.4MB/s
WRITE: 3690.7MB/s 1059.6MB/s
WRITE: 3092.7MB/s 1024.6MB/s
READ: 1435.4MB/s 826314KB/s
WRITE: 1435.2MB/s 826125KB/s
READ: 1426.7MB/s 569216KB/s
WRITE: 1428.1MB/s 569817KB/s
#jobs9
READ: 7642.9MB/s 7982.7MB/s
READ: 5941.4MB/s 6293.7MB/s
WRITE: 3790.6MB/s 1050.2MB/s
WRITE: 3181.4MB/s 948111KB/s
READ: 1430.8MB/s 758947KB/s
WRITE: 1431.4MB/s 759260KB/s
READ: 1420.8MB/s 449894KB/s
WRITE: 1420.2MB/s 449912KB/s
#jobs10
READ: 7552.6MB/s 7853.8MB/s
READ: 5979.6MB/s 6049.3MB/s
WRITE: 3690.8MB/s 985210KB/s
WRITE: 3047.2MB/s 971323KB/s
READ: 1466.7MB/s 750863KB/s
WRITE: 1467.6MB/s 751322KB/s
READ: 1390.7MB/s 431071KB/s
WRITE: 1391.4MB/s 431267KB/s


OLD NEW


jobs1 perfstat
stalled-cycles-frontend 42,179,294,111 ( 42.27%) 69,980,596,543 ( 54.76%)
stalled-cycles-backend 20,291,324,679 ( 20.33%) 42,209,369,439 ( 33.03%)
instructions 115,949,023,077 ( 1.16) 108,226,927,382 ( 0.85)
branches 22,915,506,669 ( 726.915) 20,930,779,988 ( 455.148)
branch-misses 157,490,582 ( 0.69%) 393,100,266 ( 1.88%)
jobs2 perfstat
stalled-cycles-frontend 99,808,718,071 ( 47.20%) 138,353,381,157 ( 54.46%)
stalled-cycles-backend 50,740,071,798 ( 23.99%) 86,000,378,224 ( 33.85%)
instructions 231,953,824,813 ( 1.10) 215,166,725,962 ( 0.85)
branches 45,819,311,222 ( 683.280) 41,765,459,724 ( 417.576)
branch-misses 367,871,064 ( 0.80%) 793,989,808 ( 1.90%)
jobs3 perfstat
stalled-cycles-frontend 143,472,445,917 ( 46.50%) 207,584,197,915 ( 54.61%)
stalled-cycles-backend 70,928,315,293 ( 22.99%) 126,440,378,366 ( 33.26%)
instructions 348,003,016,792 ( 1.13) 320,968,072,847 ( 0.84)
branches 68,787,283,790 ( 619.178) 62,580,295,200 ( 411.530)
branch-misses 449,811,959 ( 0.65%) 1,113,447,333 ( 1.78%)
jobs4 perfstat
stalled-cycles-frontend 201,950,202,659 ( 47.96%) 278,741,702,134 ( 55.39%)
stalled-cycles-backend 101,955,523,018 ( 24.21%) 171,537,536,649 ( 34.08%)
instructions 463,875,933,843 ( 1.10) 418,163,782,630 ( 0.83)
branches 91,720,839,796 ( 604.464) 81,267,313,414 ( 416.350)
branch-misses 701,009,770 ( 0.76%) 1,328,101,057 ( 1.63%)
jobs5 perfstat
stalled-cycles-frontend 244,426,118,305 ( 47.17%) 338,770,490,424 ( 55.06%)
stalled-cycles-backend 121,688,433,877 ( 23.48%) 206,537,478,646 ( 33.57%)
instructions 580,617,471,008 ( 1.12) 518,727,560,729 ( 0.84)
branches 114,998,494,737 ( 619.217) 100,587,852,486 ( 424.034)
branch-misses 755,197,302 ( 0.66%) 1,486,131,250 ( 1.48%)
jobs6 perfstat
stalled-cycles-frontend 306,426,786,501 ( 48.24%) 418,675,686,722 ( 55.28%)
stalled-cycles-backend 155,564,868,859 ( 24.49%) 261,774,760,749 ( 34.57%)
instructions 698,910,704,460 ( 1.10) 640,996,755,296 ( 0.85)
branches 138,734,721,168 ( 607.838) 126,542,894,264 ( 437.418)
branch-misses 1,027,094,720 ( 0.74%) 1,687,254,447 ( 1.33%)
jobs7 perfstat
stalled-cycles-frontend 344,634,632,539 ( 47.55%) 524,620,607,090 ( 55.98%)
stalled-cycles-backend 171,605,233,567 ( 23.68%) 326,480,253,386 ( 34.84%)
instructions 817,561,790,625 ( 1.13) 789,953,093,271 ( 0.84)
branches 162,523,822,416 ( 623.700) 160,686,217,996 ( 452.977)
branch-misses 1,001,767,491 ( 0.62%) 1,896,930,415 ( 1.18%)
jobs8 perfstat
stalled-cycles-frontend 415,018,039,937 ( 48.55%) 640,148,604,571 ( 56.58%)
stalled-cycles-backend 210,534,663,913 ( 24.63%) 405,646,634,128 ( 35.85%)
instructions 938,099,496,074 ( 1.10) 944,604,889,411 ( 0.83)
branches 186,977,649,076 ( 607.420) 198,183,413,437 ( 466.645)
branch-misses 1,309,555,010 ( 0.70%) 2,119,164,279 ( 1.07%)
jobs9 perfstat
stalled-cycles-frontend 449,612,872,179 ( 47.61%) 844,651,795,120 ( 57.11%)
stalled-cycles-backend 225,730,057,301 ( 23.90%) 541,881,702,721 ( 36.64%)
instructions 1,056,378,279,974 ( 1.12) 1,235,055,226,542 ( 0.84)
branches 210,682,445,933 ( 620.027) 278,801,098,961 ( 503.482)
branch-misses 1,284,610,267 ( 0.61%) 2,386,321,491 ( 0.86%)
jobs10 perfstat
stalled-cycles-frontend 523,925,463,468 ( 48.64%) 972,381,342,660 ( 58.01%)
stalled-cycles-backend 269,122,542,565 ( 24.99%) 633,864,439,755 ( 37.81%)
instructions 1,178,756,566,770 ( 1.09) 1,370,037,474,489 ( 0.82)
branches 235,713,310,396 ( 607.558) 309,456,445,052 ( 493.085)
branch-misses 1,657,381,559 ( 0.70%) 2,732,046,780 ( 0.88%)



OLD NEW

seconds elapsed 33.875828126 92.385042584
seconds elapsed 35.248880307 97.051962536
seconds elapsed 38.719622551 96.216104080
seconds elapsed 39.759294197 102.058599765
seconds elapsed 51.040574490 124.109075314
seconds elapsed 61.531148007 146.364090962
seconds elapsed 69.264584324 166.700161114
seconds elapsed 79.817910029 185.053367327
seconds elapsed 88.781317384 229.905476947
seconds elapsed 99.912528127 262.960880001


-ss
Minchan Kim
2016-09-30 05:53:09 UTC
Permalink
Hi Sergey,
Post by Sergey Senozhatsky
Hello Minchan,
Post by Minchan Kim
zram supports stream-based parallel compression. IOW, it can support
parallel compression on SMP system only if each cpus has streams.
For example, assuming 4 CPU system, there are 4 sources for compressing
in system and each source must be located in each CPUs for full
parallel compression.
So, if there is *one* stream in the system, it cannot be compressed
in parallel although the system supports multiple CPUs. This patch
aims to overcome such weakness.
The idea is to use multiple background threads to compress pages
in idle CPU and foreground just queues BIOs without interrupting
while other CPUs consumes pages in BIO to compress.
It means zram begins to support asynchronous writeback to increase
write bandwidth.
1) test cp A to B as an example of single stream compression and
enhanced 36%.
x86_64, 4 CPU
Copy kernel source to zram
old: 3.4s, new: 2.2s
2) test per-process reclaim to swap: 524M
old: 1.2s new: 0.3s
3) FIO benchamrk
random read was worse so it supports only write at the moment.
Later, We might revisit asynchronous read.
sorry for long reply.
Never mind. Better to late response rather than no-reply. ;)
And thanks for the testing!
Post by Sergey Senozhatsky
frankly speaking, sorry, I'm very skeptical about the patch set.
It seems I was not good sales guy. Let me try again.
Post by Sergey Senozhatsky
from your tests it seems that only a tiny corner case can gain some
extra performance: when we have SMP system with multiple CPUs, but
*guaranteed* only one process doing *only* one type of requests.
as soon as this process starts to do things simultaneously (like
mixed READ-WRITE) _or_ there are several processes: we are done. and
for that tiny corner case we are about to add a complex logic and a
big pile of code. I'm quite sure I'll never enable CONFIG_ZRAM_ASYNC_IO.
why would you enable it? I mean what setups you are looking at that will
benefit? hosting a CVS repository? :) just kidding.
Could you retest the benchmark without direct IO? Instead of dio,
I used fsync_on_close to flush buffered IO.

DIO isn't normal workload compared to buffered IO. The reason I used DIO
for zram benchmark was that it's handy to transfer IO to block layer effectively
and no-noise of page cache.
If we use buffered IO, the result would be fake as dirty page was just
queued in page cache without any flushing.
I think you know already it very well so no need to explan any more. :)

More important thing is current zram is poor for parallel IO.
Let's thing two usecases, zram-swap, zram-fs.

1) zram-swap

parallel IO can be done only where every CPU have reclaim context.
IOW,

1. kswapd on CPU 0
2. A process direct reclaim on CPU 1
3. process direct reclaim on CPU 2
4. process direct reclaim on CPU 3

I don't think it's usual workload. Most of time, a kswapd and a process
direct reclaim in embedded platform workload. The point is we can not
use full bandwidth.

2) zram-fs

Currently, there is a work per bdi. So, without fsync(and friends),
every IO submit would be done via that work on worker thread.
It means the IO couldn't be parallelized. However, if we use fsync,
it could be parallelized but it depends on the sync granuarity.
For exmaple, if your test application uses fsync directly, the IO
would be done in the CPU context your application running on. So,
if you has 4 test applications, every CPU could be utilized.
However, if you test application doesn't use fsync directly and
parant process calls sync if every test child applications, the
IO could be done 2 CPU context(1 is parent process context and
other is bdi work context).
So, In summary, we were poor for parallel IO workload without
sync or DIO.
Post by Sergey Senozhatsky
are there any block devices being specifically optimized for a "one
process doing one OP" cases?
Maybe, above(ie, we were poor for parallel IO workload without sync
or DIO) would be enough for justification. But if we need more :)
we have used per-process reclaim(e.g., memcg or out-of-tree per-process
reclaim whatever). It was direct reclaim context so writeback
couldn't use full bandwidth via every CPUs.
NR_CPU times faster would be great. I took experiement on my ARM
mahcine(4-CPU). 256 reclaims takes 6sec in old but with async IO,
it took 1.6 sec.

Please consider it again.
Post by Sergey Senozhatsky
my tests show a dramatic performance drop down with NEW zram.
even "one" process case (one fio job) is almost x3 slower.
somtimes WRITE test case even go from MB/s to KB/s
WRITE: 3181.4MB/s→ 948111KB/s
I've attached the .config
ENV
===
x86_64 SMP (4 CPUs), "bare zram" 2g, lzo, static compression buffer.
TEST COMMAND
============
ZRAM_SIZE=2G ZRAM_COMP_ALG=lzo LOG_SUFFIX={NEW, OLD} FIO_LOOPS=2 ./zram-fio-test.sh
EXECUTED TESTS
==============
- [seq-read]
- [rand-read]
- [seq-write]
- [rand-write]
- [mixed-seq]
- [mixed-rand]
RESULTS
=======
# ./fio-perf-o-meter.sh test-fio-zram-OLD test-fio-zram-NEW
Processing test-fio-zram-OLD
Processing test-fio-zram-NEW
OLD NEW
#jobs1
READ: 2345.1MB/s 2373.2MB/s
READ: 1948.2MB/s 1987.7MB/s
WRITE: 1292.7MB/s 275277KB/s
WRITE: 1047.5MB/s 257140KB/s
READ: 429530KB/s 175450KB/s
WRITE: 429840KB/s 175576KB/s
READ: 414074KB/s 164091KB/s
WRITE: 414402KB/s 164221KB/s
#jobs2
READ: 4484.7MB/s 4532.7MB/s
READ: 3705.7MB/s 3744.6MB/s
WRITE: 2170.7MB/s 492404KB/s
WRITE: 1864.4MB/s 470723KB/s
READ: 829949KB/s 340146KB/s
WRITE: 830065KB/s 340194KB/s
READ: 805639KB/s 336380KB/s
WRITE: 807140KB/s 337006KB/s
#jobs3
READ: 5920.1MB/s 6025.6MB/s
READ: 4845.5MB/s 5037.5MB/s
WRITE: 2956.3MB/s 777683KB/s
WRITE: 2525.7MB/s 727868KB/s
READ: 1083.6MB/s 507481KB/s
WRITE: 1085.1MB/s 508634KB/s
READ: 1114.2MB/s 493014KB/s
WRITE: 1114.7MB/s 492849KB/s
#jobs4
READ: 7819.3MB/s 7897.2MB/s
READ: 6445.4MB/s 6604.7MB/s
WRITE: 3737.3MB/s 1002.6MB/s
WRITE: 3232.5MB/s 974777KB/s
READ: 1447.1MB/s 592012KB/s
WRITE: 1448.5MB/s 592205KB/s
READ: 1427.5MB/s 569307KB/s
WRITE: 1428.1MB/s 569881KB/s
#jobs5
READ: 7201.2MB/s 7560.1MB/s
READ: 5710.4MB/s 6078.4MB/s
WRITE: 3635.1MB/s 989502KB/s
WRITE: 3131.6MB/s 949969KB/s
READ: 1428.4MB/s 650856KB/s
WRITE: 1429.7MB/s 651182KB/s
READ: 1413.9MB/s 644587KB/s
WRITE: 1412.6MB/s 644328KB/s
#jobs6
READ: 7252.5MB/s 7248.2MB/s
READ: 6150.2MB/s 6396.7MB/s
WRITE: 3583.3MB/s 954890KB/s
WRITE: 2994.2MB/s 921172KB/s
READ: 1444.6MB/s 768636KB/s
WRITE: 1445.7MB/s 769178KB/s
READ: 1350.3MB/s 652676KB/s
WRITE: 1349.3MB/s 652063KB/s
#jobs7
READ: 7681.4MB/s 7579.9MB/s
READ: 6018.5MB/s 6247.6MB/s
WRITE: 3819.3MB/s 978.54MB/s
WRITE: 3143.7MB/s 962585KB/s
READ: 1473.1MB/s 815388KB/s
WRITE: 1473.9MB/s 814944KB/s
READ: 1389.6MB/s 610843KB/s
WRITE: 1388.9MB/s 610764KB/s
#jobs8
READ: 7658.5MB/s 7818.4MB/s
READ: 6047.2MB/s 6021.4MB/s
WRITE: 3690.7MB/s 1059.6MB/s
WRITE: 3092.7MB/s 1024.6MB/s
READ: 1435.4MB/s 826314KB/s
WRITE: 1435.2MB/s 826125KB/s
READ: 1426.7MB/s 569216KB/s
WRITE: 1428.1MB/s 569817KB/s
#jobs9
READ: 7642.9MB/s 7982.7MB/s
READ: 5941.4MB/s 6293.7MB/s
WRITE: 3790.6MB/s 1050.2MB/s
WRITE: 3181.4MB/s 948111KB/s
READ: 1430.8MB/s 758947KB/s
WRITE: 1431.4MB/s 759260KB/s
READ: 1420.8MB/s 449894KB/s
WRITE: 1420.2MB/s 449912KB/s
#jobs10
READ: 7552.6MB/s 7853.8MB/s
READ: 5979.6MB/s 6049.3MB/s
WRITE: 3690.8MB/s 985210KB/s
WRITE: 3047.2MB/s 971323KB/s
READ: 1466.7MB/s 750863KB/s
WRITE: 1467.6MB/s 751322KB/s
READ: 1390.7MB/s 431071KB/s
WRITE: 1391.4MB/s 431267KB/s
OLD NEW
jobs1 perfstat
stalled-cycles-frontend 42,179,294,111 ( 42.27%) 69,980,596,543 ( 54.76%)
stalled-cycles-backend 20,291,324,679 ( 20.33%) 42,209,369,439 ( 33.03%)
instructions 115,949,023,077 ( 1.16) 108,226,927,382 ( 0.85)
branches 22,915,506,669 ( 726.915) 20,930,779,988 ( 455.148)
branch-misses 157,490,582 ( 0.69%) 393,100,266 ( 1.88%)
jobs2 perfstat
stalled-cycles-frontend 99,808,718,071 ( 47.20%) 138,353,381,157 ( 54.46%)
stalled-cycles-backend 50,740,071,798 ( 23.99%) 86,000,378,224 ( 33.85%)
instructions 231,953,824,813 ( 1.10) 215,166,725,962 ( 0.85)
branches 45,819,311,222 ( 683.280) 41,765,459,724 ( 417.576)
branch-misses 367,871,064 ( 0.80%) 793,989,808 ( 1.90%)
jobs3 perfstat
stalled-cycles-frontend 143,472,445,917 ( 46.50%) 207,584,197,915 ( 54.61%)
stalled-cycles-backend 70,928,315,293 ( 22.99%) 126,440,378,366 ( 33.26%)
instructions 348,003,016,792 ( 1.13) 320,968,072,847 ( 0.84)
branches 68,787,283,790 ( 619.178) 62,580,295,200 ( 411.530)
branch-misses 449,811,959 ( 0.65%) 1,113,447,333 ( 1.78%)
jobs4 perfstat
stalled-cycles-frontend 201,950,202,659 ( 47.96%) 278,741,702,134 ( 55.39%)
stalled-cycles-backend 101,955,523,018 ( 24.21%) 171,537,536,649 ( 34.08%)
instructions 463,875,933,843 ( 1.10) 418,163,782,630 ( 0.83)
branches 91,720,839,796 ( 604.464) 81,267,313,414 ( 416.350)
branch-misses 701,009,770 ( 0.76%) 1,328,101,057 ( 1.63%)
jobs5 perfstat
stalled-cycles-frontend 244,426,118,305 ( 47.17%) 338,770,490,424 ( 55.06%)
stalled-cycles-backend 121,688,433,877 ( 23.48%) 206,537,478,646 ( 33.57%)
instructions 580,617,471,008 ( 1.12) 518,727,560,729 ( 0.84)
branches 114,998,494,737 ( 619.217) 100,587,852,486 ( 424.034)
branch-misses 755,197,302 ( 0.66%) 1,486,131,250 ( 1.48%)
jobs6 perfstat
stalled-cycles-frontend 306,426,786,501 ( 48.24%) 418,675,686,722 ( 55.28%)
stalled-cycles-backend 155,564,868,859 ( 24.49%) 261,774,760,749 ( 34.57%)
instructions 698,910,704,460 ( 1.10) 640,996,755,296 ( 0.85)
branches 138,734,721,168 ( 607.838) 126,542,894,264 ( 437.418)
branch-misses 1,027,094,720 ( 0.74%) 1,687,254,447 ( 1.33%)
jobs7 perfstat
stalled-cycles-frontend 344,634,632,539 ( 47.55%) 524,620,607,090 ( 55.98%)
stalled-cycles-backend 171,605,233,567 ( 23.68%) 326,480,253,386 ( 34.84%)
instructions 817,561,790,625 ( 1.13) 789,953,093,271 ( 0.84)
branches 162,523,822,416 ( 623.700) 160,686,217,996 ( 452.977)
branch-misses 1,001,767,491 ( 0.62%) 1,896,930,415 ( 1.18%)
jobs8 perfstat
stalled-cycles-frontend 415,018,039,937 ( 48.55%) 640,148,604,571 ( 56.58%)
stalled-cycles-backend 210,534,663,913 ( 24.63%) 405,646,634,128 ( 35.85%)
instructions 938,099,496,074 ( 1.10) 944,604,889,411 ( 0.83)
branches 186,977,649,076 ( 607.420) 198,183,413,437 ( 466.645)
branch-misses 1,309,555,010 ( 0.70%) 2,119,164,279 ( 1.07%)
jobs9 perfstat
stalled-cycles-frontend 449,612,872,179 ( 47.61%) 844,651,795,120 ( 57.11%)
stalled-cycles-backend 225,730,057,301 ( 23.90%) 541,881,702,721 ( 36.64%)
instructions 1,056,378,279,974 ( 1.12) 1,235,055,226,542 ( 0.84)
branches 210,682,445,933 ( 620.027) 278,801,098,961 ( 503.482)
branch-misses 1,284,610,267 ( 0.61%) 2,386,321,491 ( 0.86%)
jobs10 perfstat
stalled-cycles-frontend 523,925,463,468 ( 48.64%) 972,381,342,660 ( 58.01%)
stalled-cycles-backend 269,122,542,565 ( 24.99%) 633,864,439,755 ( 37.81%)
instructions 1,178,756,566,770 ( 1.09) 1,370,037,474,489 ( 0.82)
branches 235,713,310,396 ( 607.558) 309,456,445,052 ( 493.085)
branch-misses 1,657,381,559 ( 0.70%) 2,732,046,780 ( 0.88%)
OLD NEW
seconds elapsed 33.875828126 92.385042584
seconds elapsed 35.248880307 97.051962536
seconds elapsed 38.719622551 96.216104080
seconds elapsed 39.759294197 102.058599765
seconds elapsed 51.040574490 124.109075314
seconds elapsed 61.531148007 146.364090962
seconds elapsed 69.264584324 166.700161114
seconds elapsed 79.817910029 185.053367327
seconds elapsed 88.781317384 229.905476947
seconds elapsed 99.912528127 262.960880001
-ss
#
# Automatically generated file; DO NOT EDIT.
# Linux/x86 4.8.0-rc8 Kernel Configuration
#
CONFIG_64BIT=y
CONFIG_X86_64=y
CONFIG_X86=y
CONFIG_INSTRUCTION_DECODER=y
CONFIG_OUTPUT_FORMAT="elf64-x86-64"
CONFIG_ARCH_DEFCONFIG="arch/x86/configs/x86_64_defconfig"
CONFIG_LOCKDEP_SUPPORT=y
CONFIG_STACKTRACE_SUPPORT=y
CONFIG_MMU=y
CONFIG_ARCH_MMAP_RND_BITS_MIN=28
CONFIG_ARCH_MMAP_RND_BITS_MAX=32
CONFIG_ARCH_MMAP_RND_COMPAT_BITS_MIN=8
CONFIG_ARCH_MMAP_RND_COMPAT_BITS_MAX=16
CONFIG_NEED_DMA_MAP_STATE=y
CONFIG_NEED_SG_DMA_LENGTH=y
CONFIG_GENERIC_ISA_DMA=y
CONFIG_GENERIC_BUG=y
CONFIG_GENERIC_BUG_RELATIVE_POINTERS=y
CONFIG_GENERIC_HWEIGHT=y
CONFIG_ARCH_MAY_HAVE_PC_FDC=y
CONFIG_RWSEM_XCHGADD_ALGORITHM=y
CONFIG_GENERIC_CALIBRATE_DELAY=y
CONFIG_ARCH_HAS_CPU_RELAX=y
CONFIG_ARCH_HAS_CACHE_LINE_SIZE=y
CONFIG_HAVE_SETUP_PER_CPU_AREA=y
CONFIG_NEED_PER_CPU_EMBED_FIRST_CHUNK=y
CONFIG_NEED_PER_CPU_PAGE_FIRST_CHUNK=y
CONFIG_ARCH_HIBERNATION_POSSIBLE=y
CONFIG_ARCH_SUSPEND_POSSIBLE=y
CONFIG_ARCH_WANT_HUGE_PMD_SHARE=y
CONFIG_ARCH_WANT_GENERAL_HUGETLB=y
CONFIG_ZONE_DMA32=y
CONFIG_AUDIT_ARCH=y
CONFIG_ARCH_SUPPORTS_OPTIMIZED_INLINING=y
CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y
CONFIG_HAVE_INTEL_TXT=y
CONFIG_X86_64_SMP=y
CONFIG_ARCH_SUPPORTS_UPROBES=y
CONFIG_FIX_EARLYCON_MEM=y
CONFIG_DEBUG_RODATA=y
CONFIG_PGTABLE_LEVELS=4
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
CONFIG_IRQ_WORK=y
CONFIG_BUILDTIME_EXTABLE_SORT=y
CONFIG_THREAD_INFO_IN_TASK=y
#
# General setup
#
CONFIG_INIT_ENV_ARG_LIMIT=32
CONFIG_CROSS_COMPILE=""
# CONFIG_COMPILE_TEST is not set
CONFIG_LOCALVERSION="-dbg"
CONFIG_LOCALVERSION_AUTO=y
CONFIG_HAVE_KERNEL_GZIP=y
CONFIG_HAVE_KERNEL_BZIP2=y
CONFIG_HAVE_KERNEL_LZMA=y
CONFIG_HAVE_KERNEL_XZ=y
CONFIG_HAVE_KERNEL_LZO=y
CONFIG_HAVE_KERNEL_LZ4=y
CONFIG_KERNEL_GZIP=y
# CONFIG_KERNEL_BZIP2 is not set
# CONFIG_KERNEL_LZMA is not set
# CONFIG_KERNEL_XZ is not set
# CONFIG_KERNEL_LZO is not set
# CONFIG_KERNEL_LZ4 is not set
CONFIG_DEFAULT_HOSTNAME="swordfish"
CONFIG_SWAP=y
CONFIG_SYSVIPC=y
CONFIG_SYSVIPC_SYSCTL=y
CONFIG_POSIX_MQUEUE=y
CONFIG_POSIX_MQUEUE_SYSCTL=y
# CONFIG_CROSS_MEMORY_ATTACH is not set
CONFIG_FHANDLE=y
# CONFIG_USELIB is not set
# CONFIG_AUDIT is not set
CONFIG_HAVE_ARCH_AUDITSYSCALL=y
#
# IRQ subsystem
#
CONFIG_GENERIC_IRQ_PROBE=y
CONFIG_GENERIC_IRQ_SHOW=y
CONFIG_GENERIC_PENDING_IRQ=y
CONFIG_IRQ_DOMAIN=y
CONFIG_IRQ_DOMAIN_HIERARCHY=y
CONFIG_GENERIC_MSI_IRQ=y
CONFIG_GENERIC_MSI_IRQ_DOMAIN=y
# CONFIG_IRQ_DOMAIN_DEBUG is not set
CONFIG_IRQ_FORCED_THREADING=y
CONFIG_SPARSE_IRQ=y
CONFIG_CLOCKSOURCE_WATCHDOG=y
CONFIG_ARCH_CLOCKSOURCE_DATA=y
CONFIG_CLOCKSOURCE_VALIDATE_LAST_CYCLE=y
CONFIG_GENERIC_TIME_VSYSCALL=y
CONFIG_GENERIC_CLOCKEVENTS=y
CONFIG_GENERIC_CLOCKEVENTS_BROADCAST=y
CONFIG_GENERIC_CLOCKEVENTS_MIN_ADJUST=y
CONFIG_GENERIC_CMOS_UPDATE=y
#
# Timers subsystem
#
CONFIG_TICK_ONESHOT=y
CONFIG_NO_HZ_COMMON=y
# CONFIG_HZ_PERIODIC is not set
CONFIG_NO_HZ_IDLE=y
# CONFIG_NO_HZ_FULL is not set
# CONFIG_NO_HZ is not set
CONFIG_HIGH_RES_TIMERS=y
#
# CPU/Task time and stats accounting
#
CONFIG_TICK_CPU_ACCOUNTING=y
# CONFIG_VIRT_CPU_ACCOUNTING_GEN is not set
# CONFIG_IRQ_TIME_ACCOUNTING is not set
CONFIG_BSD_PROCESS_ACCT=y
CONFIG_BSD_PROCESS_ACCT_V3=y
# CONFIG_TASKSTATS is not set
#
# RCU Subsystem
#
CONFIG_PREEMPT_RCU=y
# CONFIG_RCU_EXPERT is not set
CONFIG_SRCU=y
# CONFIG_TASKS_RCU is not set
CONFIG_RCU_STALL_COMMON=y
# CONFIG_TREE_RCU_TRACE is not set
# CONFIG_RCU_EXPEDITE_BOOT is not set
CONFIG_BUILD_BIN2C=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_LOG_BUF_SHIFT=17
CONFIG_LOG_CPU_MAX_BUF_SHIFT=12
CONFIG_NMI_LOG_BUF_SHIFT=13
CONFIG_HAVE_UNSTABLE_SCHED_CLOCK=y
CONFIG_ARCH_SUPPORTS_NUMA_BALANCING=y
CONFIG_ARCH_WANT_BATCHED_UNMAP_TLB_FLUSH=y
CONFIG_ARCH_SUPPORTS_INT128=y
CONFIG_CGROUPS=y
# CONFIG_MEMCG is not set
# CONFIG_BLK_CGROUP is not set
CONFIG_CGROUP_SCHED=y
CONFIG_FAIR_GROUP_SCHED=y
# CONFIG_CFS_BANDWIDTH is not set
CONFIG_RT_GROUP_SCHED=y
# CONFIG_CGROUP_PIDS is not set
# CONFIG_CGROUP_FREEZER is not set
# CONFIG_CGROUP_HUGETLB is not set
# CONFIG_CPUSETS is not set
# CONFIG_CGROUP_DEVICE is not set
# CONFIG_CGROUP_CPUACCT is not set
# CONFIG_CGROUP_PERF is not set
# CONFIG_CGROUP_DEBUG is not set
# CONFIG_CHECKPOINT_RESTORE is not set
CONFIG_NAMESPACES=y
CONFIG_UTS_NS=y
CONFIG_IPC_NS=y
# CONFIG_USER_NS is not set
CONFIG_PID_NS=y
CONFIG_NET_NS=y
CONFIG_SCHED_AUTOGROUP=y
# CONFIG_SYSFS_DEPRECATED is not set
CONFIG_RELAY=y
CONFIG_BLK_DEV_INITRD=y
CONFIG_INITRAMFS_SOURCE=""
CONFIG_RD_GZIP=y
# CONFIG_RD_BZIP2 is not set
# CONFIG_RD_LZMA is not set
# CONFIG_RD_XZ is not set
# CONFIG_RD_LZO is not set
# CONFIG_RD_LZ4 is not set
# CONFIG_CC_OPTIMIZE_FOR_PERFORMANCE is not set
CONFIG_CC_OPTIMIZE_FOR_SIZE=y
CONFIG_SYSCTL=y
CONFIG_ANON_INODES=y
CONFIG_SYSCTL_EXCEPTION_TRACE=y
CONFIG_HAVE_PCSPKR_PLATFORM=y
CONFIG_BPF=y
CONFIG_EXPERT=y
CONFIG_MULTIUSER=y
CONFIG_SGETMASK_SYSCALL=y
CONFIG_SYSFS_SYSCALL=y
# CONFIG_SYSCTL_SYSCALL is not set
CONFIG_KALLSYMS=y
CONFIG_KALLSYMS_ALL=y
CONFIG_KALLSYMS_ABSOLUTE_PERCPU=y
CONFIG_KALLSYMS_BASE_RELATIVE=y
CONFIG_PRINTK=y
CONFIG_PRINTK_NMI=y
CONFIG_BUG=y
CONFIG_ELF_CORE=y
# CONFIG_PCSPKR_PLATFORM is not set
CONFIG_BASE_FULL=y
CONFIG_FUTEX=y
CONFIG_EPOLL=y
CONFIG_SIGNALFD=y
CONFIG_TIMERFD=y
CONFIG_EVENTFD=y
# CONFIG_BPF_SYSCALL is not set
CONFIG_SHMEM=y
CONFIG_AIO=y
CONFIG_ADVISE_SYSCALLS=y
# CONFIG_USERFAULTFD is not set
CONFIG_PCI_QUIRKS=y
# CONFIG_MEMBARRIER is not set
# CONFIG_EMBEDDED is not set
CONFIG_HAVE_PERF_EVENTS=y
#
# Kernel Performance Events And Counters
#
CONFIG_PERF_EVENTS=y
# CONFIG_DEBUG_PERF_USE_VMALLOC is not set
CONFIG_VM_EVENT_COUNTERS=y
CONFIG_SLUB_DEBUG=y
# CONFIG_COMPAT_BRK is not set
# CONFIG_SLAB is not set
CONFIG_SLUB=y
# CONFIG_SLOB is not set
# CONFIG_SLAB_FREELIST_RANDOM is not set
CONFIG_SLUB_CPU_PARTIAL=y
# CONFIG_SYSTEM_DATA_VERIFICATION is not set
# CONFIG_PROFILING is not set
CONFIG_KEXEC_CORE=y
CONFIG_HAVE_OPROFILE=y
CONFIG_OPROFILE_NMI_TIMER=y
# CONFIG_KPROBES is not set
CONFIG_JUMP_LABEL=y
# CONFIG_STATIC_KEYS_SELFTEST is not set
# CONFIG_UPROBES is not set
# CONFIG_HAVE_64BIT_ALIGNED_ACCESS is not set
CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS=y
CONFIG_ARCH_USE_BUILTIN_BSWAP=y
CONFIG_HAVE_IOREMAP_PROT=y
CONFIG_HAVE_KPROBES=y
CONFIG_HAVE_KRETPROBES=y
CONFIG_HAVE_OPTPROBES=y
CONFIG_HAVE_KPROBES_ON_FTRACE=y
CONFIG_HAVE_NMI=y
CONFIG_HAVE_ARCH_TRACEHOOK=y
CONFIG_HAVE_DMA_CONTIGUOUS=y
CONFIG_GENERIC_SMP_IDLE_THREAD=y
CONFIG_ARCH_WANTS_DYNAMIC_TASK_STRUCT=y
CONFIG_HAVE_REGS_AND_STACK_ACCESS_API=y
CONFIG_HAVE_DMA_API_DEBUG=y
CONFIG_HAVE_HW_BREAKPOINT=y
CONFIG_HAVE_MIXED_BREAKPOINTS_REGS=y
CONFIG_HAVE_USER_RETURN_NOTIFIER=y
CONFIG_HAVE_PERF_EVENTS_NMI=y
CONFIG_HAVE_PERF_REGS=y
CONFIG_HAVE_PERF_USER_STACK_DUMP=y
CONFIG_HAVE_ARCH_JUMP_LABEL=y
CONFIG_ARCH_HAVE_NMI_SAFE_CMPXCHG=y
CONFIG_HAVE_ALIGNED_STRUCT_PAGE=y
CONFIG_HAVE_CMPXCHG_LOCAL=y
CONFIG_HAVE_CMPXCHG_DOUBLE=y
CONFIG_HAVE_ARCH_SECCOMP_FILTER=y
CONFIG_SECCOMP_FILTER=y
CONFIG_HAVE_GCC_PLUGINS=y
# CONFIG_GCC_PLUGINS is not set
CONFIG_HAVE_CC_STACKPROTECTOR=y
# CONFIG_CC_STACKPROTECTOR is not set
CONFIG_CC_STACKPROTECTOR_NONE=y
# CONFIG_CC_STACKPROTECTOR_REGULAR is not set
# CONFIG_CC_STACKPROTECTOR_STRONG is not set
CONFIG_HAVE_ARCH_WITHIN_STACK_FRAMES=y
CONFIG_HAVE_CONTEXT_TRACKING=y
CONFIG_HAVE_VIRT_CPU_ACCOUNTING_GEN=y
CONFIG_HAVE_IRQ_TIME_ACCOUNTING=y
CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE=y
CONFIG_HAVE_ARCH_HUGE_VMAP=y
CONFIG_HAVE_ARCH_SOFT_DIRTY=y
CONFIG_MODULES_USE_ELF_RELA=y
CONFIG_HAVE_IRQ_EXIT_ON_IRQ_STACK=y
CONFIG_ARCH_HAS_ELF_RANDOMIZE=y
CONFIG_HAVE_ARCH_MMAP_RND_BITS=y
CONFIG_HAVE_EXIT_THREAD=y
CONFIG_ARCH_MMAP_RND_BITS=28
CONFIG_HAVE_COPY_THREAD_TLS=y
CONFIG_HAVE_STACK_VALIDATION=y
# CONFIG_HAVE_ARCH_HASH is not set
# CONFIG_ISA_BUS_API is not set
# CONFIG_CPU_NO_EFFICIENT_FFS is not set
CONFIG_HAVE_ARCH_VMAP_STACK=y
CONFIG_VMAP_STACK=y
#
# GCOV-based kernel profiling
#
# CONFIG_GCOV_KERNEL is not set
CONFIG_ARCH_HAS_GCOV_PROFILE_ALL=y
# CONFIG_HAVE_GENERIC_DMA_COHERENT is not set
CONFIG_SLABINFO=y
CONFIG_RT_MUTEXES=y
CONFIG_BASE_SMALL=0
CONFIG_MODULES=y
# CONFIG_MODULE_FORCE_LOAD is not set
CONFIG_MODULE_UNLOAD=y
# CONFIG_MODULE_FORCE_UNLOAD is not set
# CONFIG_MODVERSIONS is not set
# CONFIG_MODULE_SRCVERSION_ALL is not set
# CONFIG_MODULE_SIG is not set
# CONFIG_MODULE_COMPRESS is not set
CONFIG_TRIM_UNUSED_KSYMS=y
CONFIG_MODULES_TREE_LOOKUP=y
CONFIG_BLOCK=y
CONFIG_BLK_DEV_BSG=y
# CONFIG_BLK_DEV_BSGLIB is not set
# CONFIG_BLK_DEV_INTEGRITY is not set
# CONFIG_BLK_CMDLINE_PARSER is not set
#
# Partition Types
#
CONFIG_PARTITION_ADVANCED=y
# CONFIG_ACORN_PARTITION is not set
# CONFIG_AIX_PARTITION is not set
# CONFIG_OSF_PARTITION is not set
# CONFIG_AMIGA_PARTITION is not set
# CONFIG_ATARI_PARTITION is not set
# CONFIG_MAC_PARTITION is not set
CONFIG_MSDOS_PARTITION=y
CONFIG_BSD_DISKLABEL=y
# CONFIG_MINIX_SUBPARTITION is not set
CONFIG_SOLARIS_X86_PARTITION=y
# CONFIG_UNIXWARE_DISKLABEL is not set
# CONFIG_LDM_PARTITION is not set
# CONFIG_SGI_PARTITION is not set
# CONFIG_ULTRIX_PARTITION is not set
# CONFIG_SUN_PARTITION is not set
# CONFIG_KARMA_PARTITION is not set
CONFIG_EFI_PARTITION=y
# CONFIG_SYSV68_PARTITION is not set
# CONFIG_CMDLINE_PARTITION is not set
CONFIG_BLK_MQ_PCI=y
#
# IO Schedulers
#
CONFIG_IOSCHED_NOOP=y
CONFIG_IOSCHED_DEADLINE=y
# CONFIG_IOSCHED_CFQ is not set
CONFIG_DEFAULT_DEADLINE=y
# CONFIG_DEFAULT_NOOP is not set
CONFIG_DEFAULT_IOSCHED="deadline"
CONFIG_UNINLINE_SPIN_UNLOCK=y
CONFIG_ARCH_SUPPORTS_ATOMIC_RMW=y
CONFIG_MUTEX_SPIN_ON_OWNER=y
CONFIG_RWSEM_SPIN_ON_OWNER=y
CONFIG_LOCK_SPIN_ON_OWNER=y
CONFIG_ARCH_USE_QUEUED_SPINLOCKS=y
CONFIG_QUEUED_SPINLOCKS=y
CONFIG_ARCH_USE_QUEUED_RWLOCKS=y
CONFIG_QUEUED_RWLOCKS=y
CONFIG_FREEZER=y
#
# Processor type and features
#
CONFIG_ZONE_DMA=y
CONFIG_SMP=y
CONFIG_X86_FEATURE_NAMES=y
CONFIG_X86_FAST_FEATURE_TESTS=y
# CONFIG_X86_X2APIC is not set
# CONFIG_X86_MPPARSE is not set
# CONFIG_GOLDFISH is not set
# CONFIG_X86_EXTENDED_PLATFORM is not set
# CONFIG_X86_INTEL_LPSS is not set
# CONFIG_X86_AMD_PLATFORM_DEVICE is not set
# CONFIG_IOSF_MBI is not set
CONFIG_X86_SUPPORTS_MEMORY_FAILURE=y
# CONFIG_SCHED_OMIT_FRAME_POINTER is not set
# CONFIG_HYPERVISOR_GUEST is not set
CONFIG_NO_BOOTMEM=y
# CONFIG_MK8 is not set
# CONFIG_MPSC is not set
# CONFIG_MCORE2 is not set
# CONFIG_MATOM is not set
CONFIG_GENERIC_CPU=y
CONFIG_X86_INTERNODE_CACHE_SHIFT=6
CONFIG_X86_L1_CACHE_SHIFT=6
CONFIG_X86_TSC=y
CONFIG_X86_CMPXCHG64=y
CONFIG_X86_CMOV=y
CONFIG_X86_MINIMUM_CPU_FAMILY=64
CONFIG_X86_DEBUGCTLMSR=y
CONFIG_PROCESSOR_SELECT=y
CONFIG_CPU_SUP_INTEL=y
# CONFIG_CPU_SUP_AMD is not set
# CONFIG_CPU_SUP_CENTAUR is not set
CONFIG_HPET_TIMER=y
CONFIG_HPET_EMULATE_RTC=y
CONFIG_DMI=y
# CONFIG_CALGARY_IOMMU is not set
CONFIG_SWIOTLB=y
CONFIG_IOMMU_HELPER=y
# CONFIG_MAXSMP is not set
CONFIG_NR_CPUS=4
CONFIG_SCHED_SMT=y
CONFIG_SCHED_MC=y
# CONFIG_PREEMPT_NONE is not set
# CONFIG_PREEMPT_VOLUNTARY is not set
CONFIG_PREEMPT=y
CONFIG_PREEMPT_COUNT=y
CONFIG_X86_LOCAL_APIC=y
CONFIG_X86_IO_APIC=y
CONFIG_X86_REROUTE_FOR_BROKEN_BOOT_IRQS=y
CONFIG_X86_MCE=y
CONFIG_X86_MCE_INTEL=y
# CONFIG_X86_MCE_AMD is not set
CONFIG_X86_MCE_THRESHOLD=y
# CONFIG_X86_MCE_INJECT is not set
CONFIG_X86_THERMAL_VECTOR=y
#
# Performance monitoring
#
CONFIG_PERF_EVENTS_INTEL_UNCORE=y
# CONFIG_PERF_EVENTS_INTEL_RAPL is not set
# CONFIG_PERF_EVENTS_INTEL_CSTATE is not set
# CONFIG_VM86 is not set
# CONFIG_X86_VSYSCALL_EMULATION is not set
# CONFIG_I8K is not set
CONFIG_MICROCODE=y
CONFIG_MICROCODE_INTEL=y
# CONFIG_MICROCODE_AMD is not set
CONFIG_MICROCODE_OLD_INTERFACE=y
# CONFIG_X86_MSR is not set
# CONFIG_X86_CPUID is not set
CONFIG_ARCH_PHYS_ADDR_T_64BIT=y
CONFIG_ARCH_DMA_ADDR_T_64BIT=y
CONFIG_X86_DIRECT_GBPAGES=y
# CONFIG_NUMA is not set
CONFIG_ARCH_SPARSEMEM_ENABLE=y
CONFIG_ARCH_SPARSEMEM_DEFAULT=y
CONFIG_ARCH_SELECT_MEMORY_MODEL=y
CONFIG_ARCH_PROC_KCORE_TEXT=y
CONFIG_ILLEGAL_POINTER_VALUE=0xdead000000000000
CONFIG_SELECT_MEMORY_MODEL=y
CONFIG_SPARSEMEM_MANUAL=y
CONFIG_SPARSEMEM=y
CONFIG_HAVE_MEMORY_PRESENT=y
CONFIG_SPARSEMEM_EXTREME=y
CONFIG_SPARSEMEM_VMEMMAP_ENABLE=y
CONFIG_SPARSEMEM_ALLOC_MEM_MAP_TOGETHER=y
CONFIG_SPARSEMEM_VMEMMAP=y
CONFIG_HAVE_MEMBLOCK=y
CONFIG_HAVE_MEMBLOCK_NODE_MAP=y
CONFIG_ARCH_DISCARD_MEMBLOCK=y
CONFIG_MEMORY_ISOLATION=y
# CONFIG_HAVE_BOOTMEM_INFO_NODE is not set
# CONFIG_MEMORY_HOTPLUG is not set
CONFIG_SPLIT_PTLOCK_CPUS=4
CONFIG_ARCH_ENABLE_SPLIT_PMD_PTLOCK=y
CONFIG_COMPACTION=y
CONFIG_MIGRATION=y
CONFIG_ARCH_ENABLE_HUGEPAGE_MIGRATION=y
CONFIG_PHYS_ADDR_T_64BIT=y
CONFIG_BOUNCE=y
CONFIG_VIRT_TO_BUS=y
# CONFIG_KSM is not set
CONFIG_DEFAULT_MMAP_MIN_ADDR=65536
CONFIG_ARCH_SUPPORTS_MEMORY_FAILURE=y
CONFIG_MEMORY_FAILURE=y
# CONFIG_HWPOISON_INJECT is not set
CONFIG_TRANSPARENT_HUGEPAGE=y
CONFIG_TRANSPARENT_HUGEPAGE_ALWAYS=y
# CONFIG_TRANSPARENT_HUGEPAGE_MADVISE is not set
CONFIG_TRANSPARENT_HUGE_PAGECACHE=y
# CONFIG_CLEANCACHE is not set
CONFIG_FRONTSWAP=y
# CONFIG_CMA is not set
CONFIG_ZSWAP=y
CONFIG_ZPOOL=y
CONFIG_ZBUD=m
CONFIG_Z3FOLD=m
CONFIG_ZSMALLOC=m
# CONFIG_PGTABLE_MAPPING is not set
CONFIG_ZSMALLOC_STAT=y
CONFIG_GENERIC_EARLY_IOREMAP=y
CONFIG_ARCH_SUPPORTS_DEFERRED_STRUCT_PAGE_INIT=y
# CONFIG_IDLE_PAGE_TRACKING is not set
# CONFIG_X86_PMEM_LEGACY is not set
CONFIG_X86_CHECK_BIOS_CORRUPTION=y
CONFIG_X86_BOOTPARAM_MEMORY_CORRUPTION_CHECK=y
CONFIG_X86_RESERVE_LOW=64
CONFIG_MTRR=y
CONFIG_MTRR_SANITIZER=y
CONFIG_MTRR_SANITIZER_ENABLE_DEFAULT=0
CONFIG_MTRR_SANITIZER_SPARE_REG_NR_DEFAULT=1
CONFIG_X86_PAT=y
CONFIG_ARCH_USES_PG_UNCACHED=y
# CONFIG_ARCH_RANDOM is not set
# CONFIG_X86_SMAP is not set
# CONFIG_X86_INTEL_MPX is not set
# CONFIG_X86_INTEL_MEMORY_PROTECTION_KEYS is not set
# CONFIG_EFI is not set
CONFIG_SECCOMP=y
# CONFIG_HZ_100 is not set
# CONFIG_HZ_250 is not set
# CONFIG_HZ_300 is not set
CONFIG_HZ_1000=y
CONFIG_HZ=1000
CONFIG_SCHED_HRTICK=y
CONFIG_KEXEC=y
CONFIG_CRASH_DUMP=y
CONFIG_PHYSICAL_START=0x1000000
CONFIG_RELOCATABLE=y
# CONFIG_RANDOMIZE_BASE is not set
CONFIG_PHYSICAL_ALIGN=0x1000000
CONFIG_HOTPLUG_CPU=y
# CONFIG_BOOTPARAM_HOTPLUG_CPU0 is not set
# CONFIG_DEBUG_HOTPLUG_CPU0 is not set
# CONFIG_LEGACY_VSYSCALL_NATIVE is not set
# CONFIG_LEGACY_VSYSCALL_EMULATE is not set
CONFIG_LEGACY_VSYSCALL_NONE=y
# CONFIG_CMDLINE_BOOL is not set
# CONFIG_MODIFY_LDT_SYSCALL is not set
CONFIG_HAVE_LIVEPATCH=y
CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y
#
# Power management and ACPI options
#
CONFIG_SUSPEND=y
CONFIG_SUSPEND_FREEZER=y
CONFIG_SUSPEND_SKIP_SYNC=y
# CONFIG_HIBERNATION is not set
CONFIG_PM_SLEEP=y
CONFIG_PM_SLEEP_SMP=y
# CONFIG_PM_AUTOSLEEP is not set
# CONFIG_PM_WAKELOCKS is not set
CONFIG_PM=y
CONFIG_PM_DEBUG=y
CONFIG_PM_ADVANCED_DEBUG=y
# CONFIG_PM_TEST_SUSPEND is not set
CONFIG_PM_SLEEP_DEBUG=y
# CONFIG_DPM_WATCHDOG is not set
# CONFIG_PM_TRACE_RTC is not set
# CONFIG_WQ_POWER_EFFICIENT_DEFAULT is not set
CONFIG_ACPI=y
CONFIG_ACPI_LEGACY_TABLES_LOOKUP=y
CONFIG_ARCH_MIGHT_HAVE_ACPI_PDC=y
CONFIG_ACPI_SYSTEM_POWER_STATES_SUPPORT=y
# CONFIG_ACPI_DEBUGGER is not set
CONFIG_ACPI_SLEEP=y
# CONFIG_ACPI_PROCFS_POWER is not set
# CONFIG_ACPI_REV_OVERRIDE_POSSIBLE is not set
# CONFIG_ACPI_EC_DEBUGFS is not set
# CONFIG_ACPI_AC is not set
# CONFIG_ACPI_BATTERY is not set
# CONFIG_ACPI_BUTTON is not set
CONFIG_ACPI_VIDEO=y
# CONFIG_ACPI_FAN is not set
# CONFIG_ACPI_DOCK is not set
CONFIG_ACPI_CPU_FREQ_PSS=y
CONFIG_ACPI_PROCESSOR_CSTATE=y
CONFIG_ACPI_PROCESSOR_IDLE=y
CONFIG_ACPI_PROCESSOR=m
CONFIG_ACPI_HOTPLUG_CPU=y
# CONFIG_ACPI_PROCESSOR_AGGREGATOR is not set
# CONFIG_ACPI_THERMAL is not set
# CONFIG_ACPI_CUSTOM_DSDT is not set
CONFIG_ARCH_HAS_ACPI_TABLE_UPGRADE=y
# CONFIG_ACPI_TABLE_UPGRADE is not set
# CONFIG_ACPI_DEBUG is not set
CONFIG_ACPI_PCI_SLOT=y
CONFIG_X86_PM_TIMER=y
CONFIG_ACPI_CONTAINER=y
CONFIG_ACPI_HOTPLUG_IOAPIC=y
# CONFIG_ACPI_SBS is not set
CONFIG_ACPI_HED=y
# CONFIG_ACPI_CUSTOM_METHOD is not set
# CONFIG_ACPI_REDUCED_HARDWARE_ONLY is not set
# CONFIG_ACPI_NFIT is not set
CONFIG_HAVE_ACPI_APEI=y
CONFIG_HAVE_ACPI_APEI_NMI=y
CONFIG_ACPI_APEI=y
CONFIG_ACPI_APEI_GHES=y
CONFIG_ACPI_APEI_PCIEAER=y
CONFIG_ACPI_APEI_MEMORY_FAILURE=y
# CONFIG_ACPI_APEI_EINJ is not set
# CONFIG_ACPI_APEI_ERST_DEBUG is not set
# CONFIG_DPTF_POWER is not set
# CONFIG_ACPI_EXTLOG is not set
# CONFIG_PMIC_OPREGION is not set
# CONFIG_ACPI_CONFIGFS is not set
# CONFIG_SFI is not set
#
# CPU Frequency scaling
#
CONFIG_CPU_FREQ=y
CONFIG_CPU_FREQ_GOV_ATTR_SET=y
CONFIG_CPU_FREQ_GOV_COMMON=y
# CONFIG_CPU_FREQ_STAT is not set
CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE=y
# CONFIG_CPU_FREQ_DEFAULT_GOV_POWERSAVE is not set
# CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE is not set
# CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND is not set
# CONFIG_CPU_FREQ_DEFAULT_GOV_CONSERVATIVE is not set
# CONFIG_CPU_FREQ_DEFAULT_GOV_SCHEDUTIL is not set
CONFIG_CPU_FREQ_GOV_PERFORMANCE=y
# CONFIG_CPU_FREQ_GOV_POWERSAVE is not set
# CONFIG_CPU_FREQ_GOV_USERSPACE is not set
# CONFIG_CPU_FREQ_GOV_ONDEMAND is not set
CONFIG_CPU_FREQ_GOV_CONSERVATIVE=m
# CONFIG_CPU_FREQ_GOV_SCHEDUTIL is not set
#
# CPU frequency scaling drivers
#
# CONFIG_X86_INTEL_PSTATE is not set
# CONFIG_X86_PCC_CPUFREQ is not set
CONFIG_X86_ACPI_CPUFREQ=m
# CONFIG_X86_POWERNOW_K8 is not set
# CONFIG_X86_SPEEDSTEP_CENTRINO is not set
# CONFIG_X86_P4_CLOCKMOD is not set
#
# shared options
#
# CONFIG_X86_SPEEDSTEP_LIB is not set
#
# CPU Idle
#
CONFIG_CPU_IDLE=y
CONFIG_CPU_IDLE_GOV_LADDER=y
CONFIG_CPU_IDLE_GOV_MENU=y
# CONFIG_ARCH_NEEDS_CPU_IDLE_COUPLED is not set
CONFIG_INTEL_IDLE=y
#
# Memory power savings
#
# CONFIG_I7300_IDLE is not set
#
# Bus options (PCI etc.)
#
CONFIG_PCI=y
CONFIG_PCI_DIRECT=y
CONFIG_PCI_MMCONFIG=y
CONFIG_PCI_DOMAINS=y
# CONFIG_PCI_CNB20LE_QUIRK is not set
CONFIG_PCIEPORTBUS=y
CONFIG_PCIEAER=y
# CONFIG_PCIE_ECRC is not set
# CONFIG_PCIEAER_INJECT is not set
# CONFIG_PCIEASPM is not set
CONFIG_PCIE_PME=y
# CONFIG_PCIE_DPC is not set
# CONFIG_PCIE_PTM is not set
CONFIG_PCI_BUS_ADDR_T_64BIT=y
CONFIG_PCI_MSI=y
CONFIG_PCI_MSI_IRQ_DOMAIN=y
# CONFIG_PCI_DEBUG is not set
# CONFIG_PCI_REALLOC_ENABLE_AUTO is not set
# CONFIG_PCI_STUB is not set
CONFIG_HT_IRQ=y
# CONFIG_PCI_IOV is not set
# CONFIG_PCI_PRI is not set
# CONFIG_PCI_PASID is not set
CONFIG_PCI_LABEL=y
# CONFIG_HOTPLUG_PCI is not set
#
# PCI host controller drivers
#
# CONFIG_PCIE_DW_PLAT is not set
# CONFIG_ISA_BUS is not set
CONFIG_ISA_DMA_API=y
# CONFIG_PCCARD is not set
# CONFIG_RAPIDIO is not set
# CONFIG_X86_SYSFB is not set
#
# Executable file formats / Emulations
#
CONFIG_BINFMT_ELF=y
CONFIG_ELFCORE=y
# CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set
CONFIG_BINFMT_SCRIPT=y
# CONFIG_HAVE_AOUT is not set
# CONFIG_BINFMT_MISC is not set
CONFIG_COREDUMP=y
# CONFIG_IA32_EMULATION is not set
# CONFIG_X86_X32 is not set
CONFIG_X86_DEV_DMA_OPS=y
CONFIG_PMC_ATOM=y
# CONFIG_VMD is not set
CONFIG_NET=y
#
# Networking options
#
CONFIG_PACKET=y
# CONFIG_PACKET_DIAG is not set
CONFIG_UNIX=y
# CONFIG_UNIX_DIAG is not set
# CONFIG_XFRM_USER is not set
# CONFIG_NET_KEY is not set
CONFIG_INET=y
CONFIG_IP_MULTICAST=y
CONFIG_IP_ADVANCED_ROUTER=y
CONFIG_IP_FIB_TRIE_STATS=y
CONFIG_IP_MULTIPLE_TABLES=y
CONFIG_IP_ROUTE_MULTIPATH=y
CONFIG_IP_ROUTE_VERBOSE=y
# CONFIG_IP_PNP is not set
# CONFIG_NET_IPIP is not set
# CONFIG_NET_IPGRE_DEMUX is not set
# CONFIG_NET_IP_TUNNEL is not set
CONFIG_IP_MROUTE=y
# CONFIG_IP_MROUTE_MULTIPLE_TABLES is not set
CONFIG_IP_PIMSM_V1=y
CONFIG_IP_PIMSM_V2=y
CONFIG_SYN_COOKIES=y
# CONFIG_NET_UDP_TUNNEL is not set
# CONFIG_NET_FOU is not set
# CONFIG_INET_AH is not set
# CONFIG_INET_ESP is not set
# CONFIG_INET_IPCOMP is not set
# CONFIG_INET_XFRM_TUNNEL is not set
# CONFIG_INET_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_BEET is not set
# CONFIG_INET_DIAG is not set
CONFIG_TCP_CONG_ADVANCED=y
# CONFIG_TCP_CONG_BIC is not set
CONFIG_TCP_CONG_CUBIC=y
# CONFIG_TCP_CONG_WESTWOOD is not set
# CONFIG_TCP_CONG_HTCP is not set
# CONFIG_TCP_CONG_HSTCP is not set
# CONFIG_TCP_CONG_HYBLA is not set
# CONFIG_TCP_CONG_VEGAS is not set
# CONFIG_TCP_CONG_NV is not set
# CONFIG_TCP_CONG_SCALABLE is not set
# CONFIG_TCP_CONG_LP is not set
# CONFIG_TCP_CONG_VENO is not set
# CONFIG_TCP_CONG_YEAH is not set
# CONFIG_TCP_CONG_ILLINOIS is not set
# CONFIG_TCP_CONG_DCTCP is not set
# CONFIG_TCP_CONG_CDG is not set
# CONFIG_TCP_CONG_BBR is not set
CONFIG_DEFAULT_CUBIC=y
# CONFIG_DEFAULT_RENO is not set
CONFIG_DEFAULT_TCP_CONG="cubic"
# CONFIG_TCP_MD5SIG is not set
CONFIG_IPV6=y
CONFIG_IPV6_ROUTER_PREF=y
CONFIG_IPV6_ROUTE_INFO=y
CONFIG_IPV6_OPTIMISTIC_DAD=y
# CONFIG_INET6_AH is not set
# CONFIG_INET6_ESP is not set
# CONFIG_INET6_IPCOMP is not set
# CONFIG_IPV6_MIP6 is not set
# CONFIG_IPV6_ILA is not set
# CONFIG_INET6_XFRM_TUNNEL is not set
# CONFIG_INET6_TUNNEL is not set
# CONFIG_INET6_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET6_XFRM_MODE_TUNNEL is not set
# CONFIG_INET6_XFRM_MODE_BEET is not set
# CONFIG_INET6_XFRM_MODE_ROUTEOPTIMIZATION is not set
# CONFIG_IPV6_SIT is not set
# CONFIG_IPV6_TUNNEL is not set
# CONFIG_IPV6_FOU is not set
# CONFIG_IPV6_FOU_TUNNEL is not set
CONFIG_IPV6_MULTIPLE_TABLES=y
CONFIG_IPV6_SUBTREES=y
# CONFIG_IPV6_MROUTE is not set
CONFIG_NETWORK_SECMARK=y
CONFIG_NET_PTP_CLASSIFY=y
CONFIG_NETWORK_PHY_TIMESTAMPING=y
CONFIG_NETFILTER=y
# CONFIG_NETFILTER_DEBUG is not set
CONFIG_NETFILTER_ADVANCED=y
#
# Core Netfilter Configuration
#
# CONFIG_NETFILTER_INGRESS is not set
# CONFIG_NETFILTER_NETLINK_ACCT is not set
# CONFIG_NETFILTER_NETLINK_QUEUE is not set
# CONFIG_NETFILTER_NETLINK_LOG is not set
# CONFIG_NF_CONNTRACK is not set
# CONFIG_NF_TABLES is not set
# CONFIG_NETFILTER_XTABLES is not set
# CONFIG_IP_SET is not set
# CONFIG_IP_VS is not set
#
# IP: Netfilter Configuration
#
# CONFIG_NF_DEFRAG_IPV4 is not set
# CONFIG_NF_DUP_IPV4 is not set
# CONFIG_NF_LOG_ARP is not set
# CONFIG_NF_LOG_IPV4 is not set
# CONFIG_NF_REJECT_IPV4 is not set
# CONFIG_IP_NF_IPTABLES is not set
# CONFIG_IP_NF_ARPTABLES is not set
#
# IPv6: Netfilter Configuration
#
# CONFIG_NF_DEFRAG_IPV6 is not set
# CONFIG_NF_DUP_IPV6 is not set
# CONFIG_NF_REJECT_IPV6 is not set
# CONFIG_NF_LOG_IPV6 is not set
# CONFIG_IP6_NF_IPTABLES is not set
# CONFIG_IP_DCCP is not set
# CONFIG_IP_SCTP is not set
# CONFIG_RDS is not set
# CONFIG_TIPC is not set
# CONFIG_ATM is not set
# CONFIG_L2TP is not set
# CONFIG_BRIDGE is not set
CONFIG_HAVE_NET_DSA=y
# CONFIG_VLAN_8021Q is not set
# CONFIG_DECNET is not set
# CONFIG_LLC2 is not set
# CONFIG_IPX is not set
# CONFIG_ATALK is not set
# CONFIG_X25 is not set
# CONFIG_LAPB is not set
# CONFIG_PHONET is not set
# CONFIG_6LOWPAN is not set
# CONFIG_IEEE802154 is not set
CONFIG_NET_SCHED=y
#
# Queueing/Scheduling
#
# CONFIG_NET_SCH_CBQ is not set
# CONFIG_NET_SCH_HTB is not set
# CONFIG_NET_SCH_HFSC is not set
# CONFIG_NET_SCH_PRIO is not set
# CONFIG_NET_SCH_MULTIQ is not set
# CONFIG_NET_SCH_RED is not set
# CONFIG_NET_SCH_SFB is not set
# CONFIG_NET_SCH_SFQ is not set
# CONFIG_NET_SCH_TEQL is not set
# CONFIG_NET_SCH_TBF is not set
# CONFIG_NET_SCH_GRED is not set
# CONFIG_NET_SCH_DSMARK is not set
# CONFIG_NET_SCH_NETEM is not set
# CONFIG_NET_SCH_DRR is not set
# CONFIG_NET_SCH_MQPRIO is not set
# CONFIG_NET_SCH_CHOKE is not set
# CONFIG_NET_SCH_QFQ is not set
# CONFIG_NET_SCH_CODEL is not set
CONFIG_NET_SCH_FQ_CODEL=m
# CONFIG_NET_SCH_FQ is not set
# CONFIG_NET_SCH_HHF is not set
# CONFIG_NET_SCH_PIE is not set
# CONFIG_NET_SCH_INGRESS is not set
# CONFIG_NET_SCH_PLUG is not set
#
# Classification
#
# CONFIG_NET_CLS_BASIC is not set
# CONFIG_NET_CLS_TCINDEX is not set
# CONFIG_NET_CLS_ROUTE4 is not set
# CONFIG_NET_CLS_FW is not set
# CONFIG_NET_CLS_U32 is not set
# CONFIG_NET_CLS_RSVP is not set
# CONFIG_NET_CLS_RSVP6 is not set
# CONFIG_NET_CLS_FLOW is not set
# CONFIG_NET_CLS_CGROUP is not set
# CONFIG_NET_CLS_BPF is not set
# CONFIG_NET_CLS_FLOWER is not set
# CONFIG_NET_CLS_MATCHALL is not set
# CONFIG_NET_EMATCH is not set
CONFIG_NET_CLS_ACT=y
# CONFIG_NET_ACT_POLICE is not set
# CONFIG_NET_ACT_GACT is not set
# CONFIG_NET_ACT_MIRRED is not set
# CONFIG_NET_ACT_NAT is not set
# CONFIG_NET_ACT_PEDIT is not set
# CONFIG_NET_ACT_SIMP is not set
# CONFIG_NET_ACT_SKBEDIT is not set
# CONFIG_NET_ACT_CSUM is not set
# CONFIG_NET_ACT_VLAN is not set
# CONFIG_NET_ACT_BPF is not set
# CONFIG_NET_ACT_SKBMOD is not set
# CONFIG_NET_ACT_IFE is not set
# CONFIG_NET_ACT_TUNNEL_KEY is not set
CONFIG_NET_SCH_FIFO=y
# CONFIG_DCB is not set
# CONFIG_BATMAN_ADV is not set
# CONFIG_OPENVSWITCH is not set
# CONFIG_VSOCKETS is not set
# CONFIG_NETLINK_DIAG is not set
# CONFIG_MPLS is not set
# CONFIG_HSR is not set
# CONFIG_NET_SWITCHDEV is not set
# CONFIG_NET_L3_MASTER_DEV is not set
# CONFIG_NET_NCSI is not set
CONFIG_RPS=y
CONFIG_RFS_ACCEL=y
CONFIG_XPS=y
# CONFIG_SOCK_CGROUP_DATA is not set
# CONFIG_CGROUP_NET_PRIO is not set
# CONFIG_CGROUP_NET_CLASSID is not set
CONFIG_NET_RX_BUSY_POLL=y
CONFIG_BQL=y
# CONFIG_BPF_JIT is not set
CONFIG_NET_FLOW_LIMIT=y
#
# Network testing
#
# CONFIG_NET_PKTGEN is not set
# CONFIG_HAMRADIO is not set
# CONFIG_CAN is not set
# CONFIG_IRDA is not set
# CONFIG_BT is not set
# CONFIG_AF_RXRPC is not set
# CONFIG_AF_KCM is not set
# CONFIG_STREAM_PARSER is not set
CONFIG_FIB_RULES=y
CONFIG_WIRELESS=y
# CONFIG_CFG80211 is not set
# CONFIG_LIB80211 is not set
#
# CFG80211 needs to be enabled for MAC80211
#
CONFIG_MAC80211_STA_HASH_MAX_SIZE=0
# CONFIG_WIMAX is not set
# CONFIG_RFKILL is not set
# CONFIG_NET_9P is not set
# CONFIG_CAIF is not set
# CONFIG_CEPH_LIB is not set
# CONFIG_NFC is not set
# CONFIG_LWTUNNEL is not set
# CONFIG_DST_CACHE is not set
# CONFIG_NET_DEVLINK is not set
CONFIG_MAY_USE_DEVLINK=y
CONFIG_HAVE_EBPF_JIT=y
#
# Device Drivers
#
#
# Generic Driver Options
#
# CONFIG_UEVENT_HELPER is not set
CONFIG_DEVTMPFS=y
# CONFIG_DEVTMPFS_MOUNT is not set
CONFIG_STANDALONE=y
CONFIG_PREVENT_FIRMWARE_BUILD=y
CONFIG_FW_LOADER=y
# CONFIG_FIRMWARE_IN_KERNEL is not set
CONFIG_EXTRA_FIRMWARE=""
# CONFIG_FW_LOADER_USER_HELPER_FALLBACK is not set
# CONFIG_ALLOW_DEV_COREDUMP is not set
# CONFIG_DEBUG_DRIVER is not set
# CONFIG_DEBUG_DEVRES is not set
# CONFIG_DEBUG_TEST_DRIVER_REMOVE is not set
# CONFIG_SYS_HYPERVISOR is not set
# CONFIG_GENERIC_CPU_DEVICES is not set
CONFIG_GENERIC_CPU_AUTOPROBE=y
CONFIG_REGMAP=y
CONFIG_REGMAP_I2C=y
CONFIG_REGMAP_SPI=y
CONFIG_REGMAP_MMIO=y
CONFIG_DMA_SHARED_BUFFER=y
# CONFIG_FENCE_TRACE is not set
#
# Bus devices
#
# CONFIG_QCOM_EBI2 is not set
# CONFIG_CONNECTOR is not set
# CONFIG_MTD is not set
# CONFIG_OF is not set
CONFIG_ARCH_MIGHT_HAVE_PC_PARPORT=y
# CONFIG_PARPORT is not set
CONFIG_PNP=y
# CONFIG_PNP_DEBUG_MESSAGES is not set
#
# Protocols
#
CONFIG_PNPACPI=y
CONFIG_BLK_DEV=y
# CONFIG_BLK_DEV_NULL_BLK is not set
# CONFIG_BLK_DEV_FD is not set
# CONFIG_BLK_DEV_PCIESSD_MTIP32XX is not set
CONFIG_ZRAM=m
# CONFIG_BLK_CPQ_CISS_DA is not set
# CONFIG_BLK_DEV_DAC960 is not set
# CONFIG_BLK_DEV_UMEM is not set
# CONFIG_BLK_DEV_COW_COMMON is not set
# CONFIG_BLK_DEV_LOOP is not set
# CONFIG_BLK_DEV_DRBD is not set
# CONFIG_BLK_DEV_NBD is not set
# CONFIG_BLK_DEV_SKD is not set
# CONFIG_BLK_DEV_SX8 is not set
# CONFIG_BLK_DEV_RAM is not set
# CONFIG_CDROM_PKTCDVD is not set
# CONFIG_ATA_OVER_ETH is not set
# CONFIG_BLK_DEV_HD is not set
# CONFIG_BLK_DEV_RBD is not set
# CONFIG_BLK_DEV_RSXX is not set
# CONFIG_BLK_DEV_NVME is not set
# CONFIG_NVME_TARGET is not set
#
# Misc devices
#
# CONFIG_SENSORS_LIS3LV02D is not set
# CONFIG_AD525X_DPOT is not set
# CONFIG_DUMMY_IRQ is not set
# CONFIG_IBM_ASM is not set
# CONFIG_PHANTOM is not set
# CONFIG_SGI_IOC4 is not set
# CONFIG_TIFM_CORE is not set
# CONFIG_ICS932S401 is not set
# CONFIG_ENCLOSURE_SERVICES is not set
# CONFIG_HP_ILO is not set
# CONFIG_APDS9802ALS is not set
# CONFIG_ISL29003 is not set
# CONFIG_ISL29020 is not set
# CONFIG_SENSORS_TSL2550 is not set
# CONFIG_SENSORS_BH1770 is not set
# CONFIG_SENSORS_APDS990X is not set
# CONFIG_HMC6352 is not set
# CONFIG_DS1682 is not set
# CONFIG_TI_DAC7512 is not set
# CONFIG_USB_SWITCH_FSA9480 is not set
# CONFIG_LATTICE_ECP3_CONFIG is not set
# CONFIG_SRAM is not set
# CONFIG_C2PORT is not set
#
# EEPROM support
#
# CONFIG_EEPROM_AT24 is not set
# CONFIG_EEPROM_AT25 is not set
# CONFIG_EEPROM_LEGACY is not set
# CONFIG_EEPROM_MAX6875 is not set
# CONFIG_EEPROM_93CX6 is not set
# CONFIG_EEPROM_93XX46 is not set
# CONFIG_CB710_CORE is not set
#
# Texas Instruments shared transport line discipline
#
# CONFIG_SENSORS_LIS3_I2C is not set
#
# Altera FPGA firmware download module
#
# CONFIG_ALTERA_STAPL is not set
# CONFIG_INTEL_MEI is not set
# CONFIG_INTEL_MEI_ME is not set
# CONFIG_INTEL_MEI_TXE is not set
# CONFIG_VMWARE_VMCI is not set
#
# Intel MIC Bus Driver
#
# CONFIG_INTEL_MIC_BUS is not set
#
# SCIF Bus Driver
#
# CONFIG_SCIF_BUS is not set
#
# VOP Bus Driver
#
# CONFIG_VOP_BUS is not set
#
# Intel MIC Host Driver
#
#
# Intel MIC Card Driver
#
#
# SCIF Driver
#
#
# Intel MIC Coprocessor State Management (COSM) Drivers
#
#
# VOP Driver
#
# CONFIG_GENWQE is not set
# CONFIG_ECHO is not set
# CONFIG_CXL_BASE is not set
# CONFIG_CXL_AFU_DRIVER_OPS is not set
CONFIG_HAVE_IDE=y
# CONFIG_IDE is not set
#
# SCSI device support
#
CONFIG_SCSI_MOD=m
# CONFIG_RAID_ATTRS is not set
CONFIG_SCSI=m
CONFIG_SCSI_DMA=y
# CONFIG_SCSI_NETLINK is not set
# CONFIG_SCSI_MQ_DEFAULT is not set
# CONFIG_SCSI_PROC_FS is not set
#
# SCSI support type (disk, tape, CD-ROM)
#
CONFIG_BLK_DEV_SD=m
# CONFIG_CHR_DEV_ST is not set
# CONFIG_CHR_DEV_OSST is not set
# CONFIG_BLK_DEV_SR is not set
# CONFIG_CHR_DEV_SG is not set
# CONFIG_CHR_DEV_SCH is not set
# CONFIG_SCSI_CONSTANTS is not set
# CONFIG_SCSI_LOGGING is not set
CONFIG_SCSI_SCAN_ASYNC=y
#
# SCSI Transports
#
# CONFIG_SCSI_SPI_ATTRS is not set
# CONFIG_SCSI_FC_ATTRS is not set
# CONFIG_SCSI_ISCSI_ATTRS is not set
# CONFIG_SCSI_SAS_ATTRS is not set
# CONFIG_SCSI_SAS_LIBSAS is not set
# CONFIG_SCSI_SRP_ATTRS is not set
CONFIG_SCSI_LOWLEVEL=y
# CONFIG_ISCSI_TCP is not set
# CONFIG_ISCSI_BOOT_SYSFS is not set
# CONFIG_SCSI_CXGB3_ISCSI is not set
# CONFIG_SCSI_CXGB4_ISCSI is not set
# CONFIG_SCSI_BNX2_ISCSI is not set
# CONFIG_BE2ISCSI is not set
# CONFIG_BLK_DEV_3W_XXXX_RAID is not set
# CONFIG_SCSI_HPSA is not set
# CONFIG_SCSI_3W_9XXX is not set
# CONFIG_SCSI_3W_SAS is not set
# CONFIG_SCSI_ACARD is not set
# CONFIG_SCSI_AACRAID is not set
# CONFIG_SCSI_AIC7XXX is not set
# CONFIG_SCSI_AIC79XX is not set
# CONFIG_SCSI_AIC94XX is not set
# CONFIG_SCSI_MVSAS is not set
# CONFIG_SCSI_MVUMI is not set
# CONFIG_SCSI_DPT_I2O is not set
# CONFIG_SCSI_ADVANSYS is not set
# CONFIG_SCSI_ARCMSR is not set
# CONFIG_SCSI_ESAS2R is not set
CONFIG_MEGARAID_NEWGEN=y
# CONFIG_MEGARAID_MM is not set
# CONFIG_MEGARAID_LEGACY is not set
# CONFIG_MEGARAID_SAS is not set
# CONFIG_SCSI_MPT3SAS is not set
# CONFIG_SCSI_MPT2SAS is not set
# CONFIG_SCSI_SMARTPQI is not set
# CONFIG_SCSI_UFSHCD is not set
# CONFIG_SCSI_HPTIOP is not set
# CONFIG_SCSI_BUSLOGIC is not set
# CONFIG_VMWARE_PVSCSI is not set
# CONFIG_SCSI_SNIC is not set
# CONFIG_SCSI_DMX3191D is not set
# CONFIG_SCSI_EATA is not set
# CONFIG_SCSI_FUTURE_DOMAIN is not set
# CONFIG_SCSI_GDTH is not set
# CONFIG_SCSI_ISCI is not set
# CONFIG_SCSI_IPS is not set
# CONFIG_SCSI_INITIO is not set
# CONFIG_SCSI_INIA100 is not set
# CONFIG_SCSI_STEX is not set
# CONFIG_SCSI_SYM53C8XX_2 is not set
# CONFIG_SCSI_IPR is not set
# CONFIG_SCSI_QLOGIC_1280 is not set
# CONFIG_SCSI_QLA_ISCSI is not set
# CONFIG_SCSI_DC395x is not set
# CONFIG_SCSI_AM53C974 is not set
# CONFIG_SCSI_WD719X is not set
# CONFIG_SCSI_DEBUG is not set
# CONFIG_SCSI_PMCRAID is not set
# CONFIG_SCSI_PM8001 is not set
# CONFIG_SCSI_DH is not set
# CONFIG_SCSI_OSD_INITIATOR is not set
CONFIG_ATA=m
# CONFIG_ATA_NONSTANDARD is not set
CONFIG_ATA_VERBOSE_ERROR=y
# CONFIG_ATA_ACPI is not set
CONFIG_SATA_PMP=y
#
# Controllers with non-SFF native interface
#
CONFIG_SATA_AHCI=m
CONFIG_SATA_AHCI_PLATFORM=m
# CONFIG_SATA_INIC162X is not set
# CONFIG_SATA_ACARD_AHCI is not set
# CONFIG_SATA_SIL24 is not set
CONFIG_ATA_SFF=y
#
# SFF controllers with custom DMA interface
#
# CONFIG_PDC_ADMA is not set
# CONFIG_SATA_QSTOR is not set
# CONFIG_SATA_SX4 is not set
CONFIG_ATA_BMDMA=y
#
# SATA SFF controllers with BMDMA
#
# CONFIG_ATA_PIIX is not set
# CONFIG_SATA_DWC is not set
# CONFIG_SATA_MV is not set
# CONFIG_SATA_NV is not set
# CONFIG_SATA_PROMISE is not set
# CONFIG_SATA_SIL is not set
# CONFIG_SATA_SIS is not set
# CONFIG_SATA_SVW is not set
# CONFIG_SATA_ULI is not set
# CONFIG_SATA_VIA is not set
# CONFIG_SATA_VITESSE is not set
#
# PATA SFF controllers with BMDMA
#
# CONFIG_PATA_ALI is not set
# CONFIG_PATA_AMD is not set
# CONFIG_PATA_ARTOP is not set
# CONFIG_PATA_ATIIXP is not set
# CONFIG_PATA_ATP867X is not set
# CONFIG_PATA_CMD64X is not set
# CONFIG_PATA_CYPRESS is not set
# CONFIG_PATA_EFAR is not set
# CONFIG_PATA_HPT366 is not set
# CONFIG_PATA_HPT37X is not set
# CONFIG_PATA_HPT3X2N is not set
# CONFIG_PATA_HPT3X3 is not set
# CONFIG_PATA_IT8213 is not set
# CONFIG_PATA_IT821X is not set
# CONFIG_PATA_JMICRON is not set
# CONFIG_PATA_MARVELL is not set
# CONFIG_PATA_NETCELL is not set
# CONFIG_PATA_NINJA32 is not set
# CONFIG_PATA_NS87415 is not set
# CONFIG_PATA_OLDPIIX is not set
# CONFIG_PATA_OPTIDMA is not set
# CONFIG_PATA_PDC2027X is not set
# CONFIG_PATA_PDC_OLD is not set
# CONFIG_PATA_RADISYS is not set
# CONFIG_PATA_RDC is not set
# CONFIG_PATA_SCH is not set
# CONFIG_PATA_SERVERWORKS is not set
# CONFIG_PATA_SIL680 is not set
# CONFIG_PATA_SIS is not set
# CONFIG_PATA_TOSHIBA is not set
# CONFIG_PATA_TRIFLEX is not set
# CONFIG_PATA_VIA is not set
# CONFIG_PATA_WINBOND is not set
#
# PIO-only SFF controllers
#
# CONFIG_PATA_CMD640_PCI is not set
# CONFIG_PATA_MPIIX is not set
# CONFIG_PATA_NS87410 is not set
# CONFIG_PATA_OPTI is not set
# CONFIG_PATA_PLATFORM is not set
# CONFIG_PATA_RZ1000 is not set
#
# Generic fallback / legacy drivers
#
# CONFIG_ATA_GENERIC is not set
# CONFIG_PATA_LEGACY is not set
# CONFIG_MD is not set
# CONFIG_TARGET_CORE is not set
# CONFIG_FUSION is not set
#
# IEEE 1394 (FireWire) support
#
# CONFIG_FIREWIRE is not set
# CONFIG_FIREWIRE_NOSY is not set
# CONFIG_MACINTOSH_DRIVERS is not set
CONFIG_NETDEVICES=y
CONFIG_MII=m
CONFIG_NET_CORE=y
# CONFIG_BONDING is not set
# CONFIG_DUMMY is not set
# CONFIG_EQUALIZER is not set
# CONFIG_NET_FC is not set
# CONFIG_IFB is not set
# CONFIG_NET_TEAM is not set
# CONFIG_MACVLAN is not set
# CONFIG_VXLAN is not set
# CONFIG_MACSEC is not set
# CONFIG_NETCONSOLE is not set
# CONFIG_NETPOLL is not set
# CONFIG_NET_POLL_CONTROLLER is not set
# CONFIG_TUN is not set
# CONFIG_TUN_VNET_CROSS_LE is not set
# CONFIG_VETH is not set
# CONFIG_NLMON is not set
# CONFIG_ARCNET is not set
#
# CAIF transport drivers
#
#
# Distributed Switch Architecture drivers
#
CONFIG_ETHERNET=y
# CONFIG_NET_VENDOR_3COM is not set
# CONFIG_NET_VENDOR_ADAPTEC is not set
# CONFIG_NET_VENDOR_AGERE is not set
# CONFIG_NET_VENDOR_ALTEON is not set
# CONFIG_ALTERA_TSE is not set
# CONFIG_NET_VENDOR_AMAZON is not set
# CONFIG_NET_VENDOR_AMD is not set
# CONFIG_NET_VENDOR_ARC is not set
# CONFIG_NET_VENDOR_ATHEROS is not set
# CONFIG_NET_VENDOR_AURORA is not set
# CONFIG_NET_CADENCE is not set
# CONFIG_NET_VENDOR_BROADCOM is not set
# CONFIG_NET_VENDOR_BROCADE is not set
# CONFIG_NET_VENDOR_CAVIUM is not set
# CONFIG_NET_VENDOR_CHELSIO is not set
# CONFIG_NET_VENDOR_CISCO is not set
# CONFIG_CX_ECAT is not set
# CONFIG_DNET is not set
# CONFIG_NET_VENDOR_DEC is not set
# CONFIG_NET_VENDOR_DLINK is not set
# CONFIG_NET_VENDOR_EMULEX is not set
# CONFIG_NET_VENDOR_EZCHIP is not set
# CONFIG_NET_VENDOR_EXAR is not set
# CONFIG_NET_VENDOR_HP is not set
CONFIG_NET_VENDOR_INTEL=y
# CONFIG_E100 is not set
# CONFIG_E1000 is not set
# CONFIG_E1000E is not set
# CONFIG_IGB is not set
# CONFIG_IGBVF is not set
# CONFIG_IXGB is not set
# CONFIG_IXGBE is not set
# CONFIG_IXGBEVF is not set
# CONFIG_I40E is not set
# CONFIG_I40EVF is not set
# CONFIG_FM10K is not set
CONFIG_NET_VENDOR_I825XX=y
# CONFIG_JME is not set
# CONFIG_NET_VENDOR_MARVELL is not set
# CONFIG_NET_VENDOR_MELLANOX is not set
# CONFIG_NET_VENDOR_MICREL is not set
# CONFIG_NET_VENDOR_MICROCHIP is not set
# CONFIG_NET_VENDOR_MYRI is not set
# CONFIG_FEALNX is not set
# CONFIG_NET_VENDOR_NATSEMI is not set
# CONFIG_NET_VENDOR_NETRONOME is not set
# CONFIG_NET_VENDOR_NVIDIA is not set
# CONFIG_NET_VENDOR_OKI is not set
# CONFIG_ETHOC is not set
# CONFIG_NET_PACKET_ENGINE is not set
# CONFIG_NET_VENDOR_QLOGIC is not set
# CONFIG_NET_VENDOR_QUALCOMM is not set
CONFIG_NET_VENDOR_REALTEK=y
# CONFIG_8139CP is not set
# CONFIG_8139TOO is not set
CONFIG_R8169=m
# CONFIG_NET_VENDOR_RENESAS is not set
# CONFIG_NET_VENDOR_RDC is not set
# CONFIG_NET_VENDOR_ROCKER is not set
# CONFIG_NET_VENDOR_SAMSUNG is not set
CONFIG_NET_VENDOR_SEEQ=y
# CONFIG_NET_VENDOR_SILAN is not set
# CONFIG_NET_VENDOR_SIS is not set
# CONFIG_SFC is not set
# CONFIG_NET_VENDOR_SMSC is not set
# CONFIG_NET_VENDOR_STMICRO is not set
# CONFIG_NET_VENDOR_SUN is not set
# CONFIG_NET_VENDOR_SYNOPSYS is not set
# CONFIG_NET_VENDOR_TEHUTI is not set
# CONFIG_NET_VENDOR_TI is not set
# CONFIG_NET_VENDOR_VIA is not set
# CONFIG_NET_VENDOR_WIZNET is not set
# CONFIG_FDDI is not set
# CONFIG_HIPPI is not set
# CONFIG_NET_SB1000 is not set
# CONFIG_PHYLIB is not set
# CONFIG_MICREL_KS8995MA is not set
# CONFIG_PPP is not set
# CONFIG_SLIP is not set
#
# Host-side USB support is needed for USB Network Adapter support
#
CONFIG_USB_NET_DRIVERS=m
# CONFIG_USB_CATC is not set
# CONFIG_USB_KAWETH is not set
# CONFIG_USB_PEGASUS is not set
# CONFIG_USB_RTL8150 is not set
# CONFIG_USB_RTL8152 is not set
# CONFIG_USB_LAN78XX is not set
CONFIG_USB_USBNET=m
# CONFIG_USB_NET_AX8817X is not set
# CONFIG_USB_NET_AX88179_178A is not set
CONFIG_USB_NET_CDCETHER=m
# CONFIG_USB_NET_CDC_EEM is not set
# CONFIG_USB_NET_CDC_NCM is not set
# CONFIG_USB_NET_HUAWEI_CDC_NCM is not set
# CONFIG_USB_NET_CDC_MBIM is not set
# CONFIG_USB_NET_DM9601 is not set
# CONFIG_USB_NET_SR9700 is not set
# CONFIG_USB_NET_SR9800 is not set
# CONFIG_USB_NET_SMSC75XX is not set
# CONFIG_USB_NET_SMSC95XX is not set
# CONFIG_USB_NET_GL620A is not set
# CONFIG_USB_NET_NET1080 is not set
# CONFIG_USB_NET_PLUSB is not set
# CONFIG_USB_NET_MCS7830 is not set
CONFIG_USB_NET_RNDIS_HOST=m
# CONFIG_USB_NET_CDC_SUBSET is not set
# CONFIG_USB_NET_ZAURUS is not set
# CONFIG_USB_NET_CX82310_ETH is not set
# CONFIG_USB_NET_KALMIA is not set
# CONFIG_USB_NET_QMI_WWAN is not set
# CONFIG_USB_NET_INT51X1 is not set
# CONFIG_USB_IPHETH is not set
# CONFIG_USB_SIERRA_NET is not set
# CONFIG_USB_VL600 is not set
# CONFIG_USB_NET_CH9200 is not set
# CONFIG_WLAN is not set
#
# Enable WiMAX (Networking options) to see the WiMAX drivers
#
# CONFIG_WAN is not set
# CONFIG_VMXNET3 is not set
# CONFIG_FUJITSU_ES is not set
# CONFIG_ISDN is not set
# CONFIG_NVM is not set
#
# Input device support
#
CONFIG_INPUT=y
# CONFIG_INPUT_FF_MEMLESS is not set
# CONFIG_INPUT_POLLDEV is not set
# CONFIG_INPUT_SPARSEKMAP is not set
# CONFIG_INPUT_MATRIXKMAP is not set
#
# Userland interfaces
#
CONFIG_INPUT_MOUSEDEV=m
# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
# CONFIG_INPUT_JOYDEV is not set
CONFIG_INPUT_EVDEV=y
# CONFIG_INPUT_EVBUG is not set
#
# Input Device Drivers
#
CONFIG_INPUT_KEYBOARD=y
# CONFIG_KEYBOARD_ADP5588 is not set
# CONFIG_KEYBOARD_ADP5589 is not set
CONFIG_KEYBOARD_ATKBD=y
# CONFIG_KEYBOARD_QT1070 is not set
# CONFIG_KEYBOARD_QT2160 is not set
# CONFIG_KEYBOARD_LKKBD is not set
# CONFIG_KEYBOARD_TCA6416 is not set
# CONFIG_KEYBOARD_TCA8418 is not set
# CONFIG_KEYBOARD_LM8333 is not set
# CONFIG_KEYBOARD_MAX7359 is not set
# CONFIG_KEYBOARD_MCS is not set
# CONFIG_KEYBOARD_MPR121 is not set
# CONFIG_KEYBOARD_NEWTON is not set
# CONFIG_KEYBOARD_OPENCORES is not set
# CONFIG_KEYBOARD_STOWAWAY is not set
# CONFIG_KEYBOARD_SUNKBD is not set
# CONFIG_KEYBOARD_XTKBD is not set
CONFIG_INPUT_MOUSE=y
# CONFIG_MOUSE_PS2 is not set
# CONFIG_MOUSE_SERIAL is not set
# CONFIG_MOUSE_APPLETOUCH is not set
# CONFIG_MOUSE_BCM5974 is not set
# CONFIG_MOUSE_CYAPA is not set
# CONFIG_MOUSE_ELAN_I2C is not set
# CONFIG_MOUSE_VSXXXAA is not set
# CONFIG_MOUSE_SYNAPTICS_I2C is not set
# CONFIG_MOUSE_SYNAPTICS_USB is not set
# CONFIG_INPUT_JOYSTICK is not set
# CONFIG_INPUT_TABLET is not set
# CONFIG_INPUT_TOUCHSCREEN is not set
# CONFIG_INPUT_MISC is not set
# CONFIG_RMI4_CORE is not set
#
# Hardware I/O ports
#
CONFIG_SERIO=y
CONFIG_ARCH_MIGHT_HAVE_PC_SERIO=y
CONFIG_SERIO_I8042=y
# CONFIG_SERIO_SERPORT is not set
# CONFIG_SERIO_CT82C710 is not set
# CONFIG_SERIO_PCIPS2 is not set
CONFIG_SERIO_LIBPS2=y
CONFIG_SERIO_RAW=y
CONFIG_SERIO_ALTERA_PS2=y
CONFIG_SERIO_PS2MULT=y
CONFIG_SERIO_ARC_PS2=y
# CONFIG_USERIO is not set
# CONFIG_GAMEPORT is not set
#
# Character devices
#
CONFIG_TTY=y
CONFIG_VT=y
CONFIG_CONSOLE_TRANSLATIONS=y
CONFIG_VT_CONSOLE=y
CONFIG_VT_CONSOLE_SLEEP=y
CONFIG_HW_CONSOLE=y
CONFIG_VT_HW_CONSOLE_BINDING=y
CONFIG_UNIX98_PTYS=y
# CONFIG_LEGACY_PTYS is not set
CONFIG_SERIAL_NONSTANDARD=y
# CONFIG_ROCKETPORT is not set
# CONFIG_CYCLADES is not set
# CONFIG_MOXA_INTELLIO is not set
# CONFIG_MOXA_SMARTIO is not set
# CONFIG_SYNCLINK is not set
# CONFIG_SYNCLINKMP is not set
# CONFIG_SYNCLINK_GT is not set
# CONFIG_NOZOMI is not set
# CONFIG_ISI is not set
# CONFIG_N_HDLC is not set
# CONFIG_N_GSM is not set
# CONFIG_TRACE_SINK is not set
# CONFIG_DEVMEM is not set
# CONFIG_DEVKMEM is not set
#
# Serial drivers
#
CONFIG_SERIAL_EARLYCON=y
CONFIG_SERIAL_8250=y
# CONFIG_SERIAL_8250_DEPRECATED_OPTIONS is not set
CONFIG_SERIAL_8250_PNP=y
# CONFIG_SERIAL_8250_FINTEK is not set
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_8250_DMA=y
CONFIG_SERIAL_8250_PCI=y
CONFIG_SERIAL_8250_NR_UARTS=32
CONFIG_SERIAL_8250_RUNTIME_UARTS=4
# CONFIG_SERIAL_8250_EXTENDED is not set
# CONFIG_SERIAL_8250_FSL is not set
# CONFIG_SERIAL_8250_DW is not set
# CONFIG_SERIAL_8250_RT288X is not set
# CONFIG_SERIAL_8250_LPSS is not set
# CONFIG_SERIAL_8250_MID is not set
# CONFIG_SERIAL_8250_MOXA is not set
#
# Non-8250 serial port support
#
# CONFIG_SERIAL_MAX3100 is not set
# CONFIG_SERIAL_MAX310X is not set
# CONFIG_SERIAL_UARTLITE is not set
CONFIG_SERIAL_CORE=y
CONFIG_SERIAL_CORE_CONSOLE=y
# CONFIG_SERIAL_JSM is not set
# CONFIG_SERIAL_SCCNXP is not set
# CONFIG_SERIAL_SC16IS7XX is not set
# CONFIG_SERIAL_ALTERA_JTAGUART is not set
# CONFIG_SERIAL_ALTERA_UART is not set
# CONFIG_SERIAL_ARC is not set
# CONFIG_SERIAL_RP2 is not set
# CONFIG_SERIAL_FSL_LPUART is not set
# CONFIG_TTY_PRINTK is not set
# CONFIG_IPMI_HANDLER is not set
# CONFIG_HW_RANDOM is not set
# CONFIG_NVRAM is not set
# CONFIG_R3964 is not set
# CONFIG_APPLICOM is not set
# CONFIG_MWAVE is not set
# CONFIG_RAW_DRIVER is not set
CONFIG_HPET=y
CONFIG_HPET_MMAP=y
# CONFIG_HPET_MMAP_DEFAULT is not set
# CONFIG_HANGCHECK_TIMER is not set
# CONFIG_TCG_TPM is not set
# CONFIG_TELCLOCK is not set
CONFIG_DEVPORT=y
# CONFIG_XILLYBUS is not set
#
# I2C support
#
CONFIG_I2C=y
CONFIG_ACPI_I2C_OPREGION=y
CONFIG_I2C_BOARDINFO=y
CONFIG_I2C_COMPAT=y
# CONFIG_I2C_CHARDEV is not set
# CONFIG_I2C_MUX is not set
CONFIG_I2C_HELPER_AUTO=y
CONFIG_I2C_SMBUS=m
CONFIG_I2C_ALGOBIT=y
#
# I2C Hardware Bus support
#
#
# PC SMBus host controller drivers
#
# CONFIG_I2C_ALI1535 is not set
# CONFIG_I2C_ALI1563 is not set
# CONFIG_I2C_ALI15X3 is not set
# CONFIG_I2C_AMD756 is not set
# CONFIG_I2C_AMD8111 is not set
CONFIG_I2C_I801=m
# CONFIG_I2C_ISCH is not set
# CONFIG_I2C_ISMT is not set
# CONFIG_I2C_PIIX4 is not set
# CONFIG_I2C_NFORCE2 is not set
# CONFIG_I2C_SIS5595 is not set
# CONFIG_I2C_SIS630 is not set
# CONFIG_I2C_SIS96X is not set
# CONFIG_I2C_VIA is not set
# CONFIG_I2C_VIAPRO is not set
#
# ACPI drivers
#
# CONFIG_I2C_SCMI is not set
#
# I2C system bus drivers (mostly embedded / system-on-chip)
#
# CONFIG_I2C_DESIGNWARE_PCI is not set
# CONFIG_I2C_OCORES is not set
# CONFIG_I2C_PCA_PLATFORM is not set
# CONFIG_I2C_PXA_PCI is not set
# CONFIG_I2C_SIMTEC is not set
# CONFIG_I2C_XILINX is not set
#
# External I2C/SMBus adapter drivers
#
# CONFIG_I2C_DIOLAN_U2C is not set
# CONFIG_I2C_PARPORT_LIGHT is not set
# CONFIG_I2C_ROBOTFUZZ_OSIF is not set
# CONFIG_I2C_TAOS_EVM is not set
# CONFIG_I2C_TINY_USB is not set
#
# Other I2C/SMBus bus drivers
#
# CONFIG_I2C_STUB is not set
# CONFIG_I2C_SLAVE is not set
# CONFIG_I2C_DEBUG_CORE is not set
# CONFIG_I2C_DEBUG_ALGO is not set
# CONFIG_I2C_DEBUG_BUS is not set
CONFIG_SPI=y
# CONFIG_SPI_DEBUG is not set
CONFIG_SPI_MASTER=y
#
# SPI Master Controller Drivers
#
# CONFIG_SPI_ALTERA is not set
# CONFIG_SPI_AXI_SPI_ENGINE is not set
# CONFIG_SPI_BITBANG is not set
# CONFIG_SPI_CADENCE is not set
# CONFIG_SPI_DESIGNWARE is not set
# CONFIG_SPI_PXA2XX is not set
# CONFIG_SPI_PXA2XX_PCI is not set
# CONFIG_SPI_ROCKCHIP is not set
# CONFIG_SPI_SC18IS602 is not set
# CONFIG_SPI_XCOMM is not set
# CONFIG_SPI_XILINX is not set
# CONFIG_SPI_ZYNQMP_GQSPI is not set
#
# SPI Protocol Masters
#
# CONFIG_SPI_SPIDEV is not set
# CONFIG_SPI_LOOPBACK_TEST is not set
# CONFIG_SPI_TLE62X0 is not set
# CONFIG_SPMI is not set
# CONFIG_HSI is not set
#
# PPS support
#
# CONFIG_PPS is not set
#
# PPS generators support
#
#
# PTP clock support
#
# CONFIG_PTP_1588_CLOCK is not set
#
# Enable PHYLIB and NETWORK_PHY_TIMESTAMPING to see the additional clocks.
#
# CONFIG_GPIOLIB is not set
# CONFIG_W1 is not set
# CONFIG_POWER_AVS is not set
CONFIG_POWER_RESET=y
# CONFIG_POWER_RESET_RESTART is not set
CONFIG_POWER_SUPPLY=y
# CONFIG_POWER_SUPPLY_DEBUG is not set
# CONFIG_PDA_POWER is not set
# CONFIG_TEST_POWER is not set
# CONFIG_BATTERY_DS2780 is not set
# CONFIG_BATTERY_DS2781 is not set
# CONFIG_BATTERY_DS2782 is not set
# CONFIG_BATTERY_SBS is not set
# CONFIG_BATTERY_BQ27XXX is not set
# CONFIG_BATTERY_MAX17040 is not set
# CONFIG_BATTERY_MAX17042 is not set
# CONFIG_CHARGER_MAX8903 is not set
# CONFIG_CHARGER_LP8727 is not set
# CONFIG_CHARGER_BQ2415X is not set
# CONFIG_CHARGER_SMB347 is not set
# CONFIG_BATTERY_GAUGE_LTC2941 is not set
CONFIG_HWMON=m
# CONFIG_HWMON_VID is not set
# CONFIG_HWMON_DEBUG_CHIP is not set
#
# Native drivers
#
# CONFIG_SENSORS_ABITUGURU is not set
# CONFIG_SENSORS_ABITUGURU3 is not set
# CONFIG_SENSORS_AD7314 is not set
# CONFIG_SENSORS_AD7414 is not set
# CONFIG_SENSORS_AD7418 is not set
# CONFIG_SENSORS_ADM1021 is not set
# CONFIG_SENSORS_ADM1025 is not set
# CONFIG_SENSORS_ADM1026 is not set
# CONFIG_SENSORS_ADM1029 is not set
# CONFIG_SENSORS_ADM1031 is not set
# CONFIG_SENSORS_ADM9240 is not set
# CONFIG_SENSORS_ADT7310 is not set
# CONFIG_SENSORS_ADT7410 is not set
# CONFIG_SENSORS_ADT7411 is not set
# CONFIG_SENSORS_ADT7462 is not set
# CONFIG_SENSORS_ADT7470 is not set
# CONFIG_SENSORS_ADT7475 is not set
# CONFIG_SENSORS_ASC7621 is not set
# CONFIG_SENSORS_K8TEMP is not set
# CONFIG_SENSORS_K10TEMP is not set
# CONFIG_SENSORS_APPLESMC is not set
# CONFIG_SENSORS_ASB100 is not set
# CONFIG_SENSORS_ATXP1 is not set
# CONFIG_SENSORS_DS620 is not set
# CONFIG_SENSORS_DS1621 is not set
# CONFIG_SENSORS_DELL_SMM is not set
# CONFIG_SENSORS_I5K_AMB is not set
# CONFIG_SENSORS_F71805F is not set
# CONFIG_SENSORS_F71882FG is not set
# CONFIG_SENSORS_F75375S is not set
# CONFIG_SENSORS_FSCHMD is not set
# CONFIG_SENSORS_GL518SM is not set
# CONFIG_SENSORS_GL520SM is not set
# CONFIG_SENSORS_G760A is not set
# CONFIG_SENSORS_G762 is not set
# CONFIG_SENSORS_HIH6130 is not set
# CONFIG_SENSORS_I5500 is not set
CONFIG_SENSORS_CORETEMP=m
# CONFIG_SENSORS_IT87 is not set
# CONFIG_SENSORS_JC42 is not set
# CONFIG_SENSORS_POWR1220 is not set
# CONFIG_SENSORS_LINEAGE is not set
# CONFIG_SENSORS_LTC2945 is not set
# CONFIG_SENSORS_LTC2990 is not set
# CONFIG_SENSORS_LTC4151 is not set
# CONFIG_SENSORS_LTC4215 is not set
# CONFIG_SENSORS_LTC4222 is not set
# CONFIG_SENSORS_LTC4245 is not set
# CONFIG_SENSORS_LTC4260 is not set
# CONFIG_SENSORS_LTC4261 is not set
# CONFIG_SENSORS_MAX1111 is not set
# CONFIG_SENSORS_MAX16065 is not set
# CONFIG_SENSORS_MAX1619 is not set
# CONFIG_SENSORS_MAX1668 is not set
# CONFIG_SENSORS_MAX197 is not set
# CONFIG_SENSORS_MAX31722 is not set
# CONFIG_SENSORS_MAX6639 is not set
# CONFIG_SENSORS_MAX6642 is not set
# CONFIG_SENSORS_MAX6650 is not set
# CONFIG_SENSORS_MAX6697 is not set
# CONFIG_SENSORS_MAX31790 is not set
# CONFIG_SENSORS_MCP3021 is not set
# CONFIG_SENSORS_ADCXX is not set
# CONFIG_SENSORS_LM63 is not set
# CONFIG_SENSORS_LM70 is not set
# CONFIG_SENSORS_LM73 is not set
# CONFIG_SENSORS_LM75 is not set
# CONFIG_SENSORS_LM77 is not set
# CONFIG_SENSORS_LM78 is not set
# CONFIG_SENSORS_LM80 is not set
# CONFIG_SENSORS_LM83 is not set
# CONFIG_SENSORS_LM85 is not set
# CONFIG_SENSORS_LM87 is not set
# CONFIG_SENSORS_LM90 is not set
# CONFIG_SENSORS_LM92 is not set
# CONFIG_SENSORS_LM93 is not set
# CONFIG_SENSORS_LM95234 is not set
# CONFIG_SENSORS_LM95241 is not set
# CONFIG_SENSORS_LM95245 is not set
# CONFIG_SENSORS_PC87360 is not set
# CONFIG_SENSORS_PC87427 is not set
# CONFIG_SENSORS_NTC_THERMISTOR is not set
# CONFIG_SENSORS_NCT6683 is not set
# CONFIG_SENSORS_NCT6775 is not set
# CONFIG_SENSORS_NCT7802 is not set
# CONFIG_SENSORS_NCT7904 is not set
# CONFIG_SENSORS_PCF8591 is not set
# CONFIG_PMBUS is not set
# CONFIG_SENSORS_SHT21 is not set
# CONFIG_SENSORS_SHT3x is not set
# CONFIG_SENSORS_SHTC1 is not set
# CONFIG_SENSORS_SIS5595 is not set
# CONFIG_SENSORS_DME1737 is not set
# CONFIG_SENSORS_EMC1403 is not set
# CONFIG_SENSORS_EMC2103 is not set
# CONFIG_SENSORS_EMC6W201 is not set
# CONFIG_SENSORS_SMSC47M1 is not set
# CONFIG_SENSORS_SMSC47M192 is not set
# CONFIG_SENSORS_SMSC47B397 is not set
# CONFIG_SENSORS_SCH56XX_COMMON is not set
# CONFIG_SENSORS_SMM665 is not set
# CONFIG_SENSORS_ADC128D818 is not set
# CONFIG_SENSORS_ADS1015 is not set
# CONFIG_SENSORS_ADS7828 is not set
# CONFIG_SENSORS_ADS7871 is not set
# CONFIG_SENSORS_AMC6821 is not set
# CONFIG_SENSORS_INA209 is not set
# CONFIG_SENSORS_INA2XX is not set
# CONFIG_SENSORS_INA3221 is not set
# CONFIG_SENSORS_TC74 is not set
# CONFIG_SENSORS_THMC50 is not set
# CONFIG_SENSORS_TMP102 is not set
# CONFIG_SENSORS_TMP103 is not set
# CONFIG_SENSORS_TMP401 is not set
# CONFIG_SENSORS_TMP421 is not set
# CONFIG_SENSORS_VIA_CPUTEMP is not set
# CONFIG_SENSORS_VIA686A is not set
# CONFIG_SENSORS_VT1211 is not set
# CONFIG_SENSORS_VT8231 is not set
# CONFIG_SENSORS_W83781D is not set
# CONFIG_SENSORS_W83791D is not set
# CONFIG_SENSORS_W83792D is not set
# CONFIG_SENSORS_W83793 is not set
# CONFIG_SENSORS_W83795 is not set
# CONFIG_SENSORS_W83L785TS is not set
# CONFIG_SENSORS_W83L786NG is not set
# CONFIG_SENSORS_W83627HF is not set
# CONFIG_SENSORS_W83627EHF is not set
#
# ACPI drivers
#
# CONFIG_SENSORS_ACPI_POWER is not set
# CONFIG_SENSORS_ATK0110 is not set
CONFIG_THERMAL=y
# CONFIG_THERMAL_WRITABLE_TRIPS is not set
CONFIG_THERMAL_DEFAULT_GOV_STEP_WISE=y
# CONFIG_THERMAL_DEFAULT_GOV_FAIR_SHARE is not set
# CONFIG_THERMAL_DEFAULT_GOV_USER_SPACE is not set
# CONFIG_THERMAL_DEFAULT_GOV_POWER_ALLOCATOR is not set
CONFIG_THERMAL_GOV_FAIR_SHARE=y
CONFIG_THERMAL_GOV_STEP_WISE=y
# CONFIG_THERMAL_GOV_BANG_BANG is not set
# CONFIG_THERMAL_GOV_USER_SPACE is not set
# CONFIG_THERMAL_GOV_POWER_ALLOCATOR is not set
# CONFIG_THERMAL_EMULATION is not set
# CONFIG_INTEL_POWERCLAMP is not set
# CONFIG_X86_PKG_TEMP_THERMAL is not set
# CONFIG_INTEL_SOC_DTS_THERMAL is not set
#
# ACPI INT340X thermal drivers
#
# CONFIG_INT340X_THERMAL is not set
# CONFIG_INTEL_PCH_THERMAL is not set
# CONFIG_WATCHDOG is not set
CONFIG_SSB_POSSIBLE=y
#
# Sonics Silicon Backplane
#
# CONFIG_SSB is not set
CONFIG_BCMA_POSSIBLE=y
#
# Broadcom specific AMBA
#
# CONFIG_BCMA is not set
#
# Multifunction device drivers
#
CONFIG_MFD_CORE=m
# CONFIG_MFD_AS3711 is not set
# CONFIG_PMIC_ADP5520 is not set
# CONFIG_MFD_BCM590XX is not set
# CONFIG_MFD_AXP20X_I2C is not set
# CONFIG_MFD_CROS_EC is not set
# CONFIG_PMIC_DA903X is not set
# CONFIG_MFD_DA9052_SPI is not set
# CONFIG_MFD_DA9052_I2C is not set
# CONFIG_MFD_DA9055 is not set
# CONFIG_MFD_DA9062 is not set
# CONFIG_MFD_DA9063 is not set
# CONFIG_MFD_DA9150 is not set
# CONFIG_MFD_DLN2 is not set
# CONFIG_MFD_EXYNOS_LPASS is not set
# CONFIG_MFD_MC13XXX_SPI is not set
# CONFIG_MFD_MC13XXX_I2C is not set
# CONFIG_HTC_PASIC3 is not set
CONFIG_LPC_ICH=m
# CONFIG_LPC_SCH is not set
# CONFIG_MFD_INTEL_LPSS_ACPI is not set
# CONFIG_MFD_INTEL_LPSS_PCI is not set
# CONFIG_MFD_JANZ_CMODIO is not set
# CONFIG_MFD_KEMPLD is not set
# CONFIG_MFD_88PM800 is not set
# CONFIG_MFD_88PM805 is not set
# CONFIG_MFD_88PM860X is not set
# CONFIG_MFD_MAX14577 is not set
# CONFIG_MFD_MAX77693 is not set
# CONFIG_MFD_MAX77843 is not set
# CONFIG_MFD_MAX8907 is not set
# CONFIG_MFD_MAX8925 is not set
# CONFIG_MFD_MAX8997 is not set
# CONFIG_MFD_MAX8998 is not set
# CONFIG_MFD_MT6397 is not set
# CONFIG_MFD_MENF21BMC is not set
# CONFIG_EZX_PCAP is not set
# CONFIG_MFD_VIPERBOARD is not set
# CONFIG_MFD_RETU is not set
# CONFIG_MFD_PCF50633 is not set
# CONFIG_MFD_RDC321X is not set
# CONFIG_MFD_RTSX_PCI is not set
# CONFIG_MFD_RT5033 is not set
# CONFIG_MFD_RTSX_USB is not set
# CONFIG_MFD_RC5T583 is not set
# CONFIG_MFD_SEC_CORE is not set
# CONFIG_MFD_SI476X_CORE is not set
# CONFIG_MFD_SM501 is not set
# CONFIG_MFD_SKY81452 is not set
# CONFIG_MFD_SMSC is not set
CONFIG_ABX500_CORE=y
# CONFIG_AB3100_CORE is not set
CONFIG_MFD_SYSCON=y
# CONFIG_MFD_TI_AM335X_TSCADC is not set
# CONFIG_MFD_LP3943 is not set
# CONFIG_MFD_LP8788 is not set
# CONFIG_MFD_PALMAS is not set
# CONFIG_TPS6105X is not set
# CONFIG_TPS6507X is not set
# CONFIG_MFD_TPS65086 is not set
# CONFIG_MFD_TPS65090 is not set
# CONFIG_MFD_TPS65217 is not set
# CONFIG_MFD_TI_LP873X is not set
# CONFIG_MFD_TPS65218 is not set
# CONFIG_MFD_TPS6586X is not set
# CONFIG_MFD_TPS65912_I2C is not set
# CONFIG_MFD_TPS65912_SPI is not set
# CONFIG_MFD_TPS80031 is not set
# CONFIG_TWL4030_CORE is not set
# CONFIG_TWL6040_CORE is not set
# CONFIG_MFD_WL1273_CORE is not set
# CONFIG_MFD_LM3533 is not set
# CONFIG_MFD_TMIO is not set
# CONFIG_MFD_VX855 is not set
# CONFIG_MFD_ARIZONA_I2C is not set
# CONFIG_MFD_ARIZONA_SPI is not set
# CONFIG_MFD_WM8400 is not set
# CONFIG_MFD_WM831X_I2C is not set
# CONFIG_MFD_WM831X_SPI is not set
# CONFIG_MFD_WM8350_I2C is not set
# CONFIG_MFD_WM8994 is not set
# CONFIG_REGULATOR is not set
# CONFIG_MEDIA_SUPPORT is not set
#
# Graphics support
#
CONFIG_AGP=y
# CONFIG_AGP_INTEL is not set
# CONFIG_AGP_SIS is not set
# CONFIG_AGP_VIA is not set
# CONFIG_VGA_ARB is not set
# CONFIG_VGA_SWITCHEROO is not set
CONFIG_DRM=y
# CONFIG_DRM_DP_AUX_CHARDEV is not set
CONFIG_DRM_KMS_HELPER=y
CONFIG_DRM_KMS_FB_HELPER=y
CONFIG_DRM_FBDEV_EMULATION=y
# CONFIG_DRM_LOAD_EDID_FIRMWARE is not set
CONFIG_DRM_TTM=y
#
# I2C encoder or helper chips
#
# CONFIG_DRM_I2C_CH7006 is not set
# CONFIG_DRM_I2C_SIL164 is not set
# CONFIG_DRM_I2C_NXP_TDA998X is not set
# CONFIG_DRM_RADEON is not set
# CONFIG_DRM_AMDGPU is not set
#
# ACP (Audio CoProcessor) Configuration
#
CONFIG_DRM_NOUVEAU=y
CONFIG_NOUVEAU_DEBUG=5
CONFIG_NOUVEAU_DEBUG_DEFAULT=3
CONFIG_DRM_NOUVEAU_BACKLIGHT=y
# CONFIG_DRM_I915 is not set
# CONFIG_DRM_VGEM is not set
# CONFIG_DRM_VMWGFX is not set
# CONFIG_DRM_GMA500 is not set
# CONFIG_DRM_UDL is not set
# CONFIG_DRM_AST is not set
# CONFIG_DRM_MGAG200 is not set
# CONFIG_DRM_CIRRUS_QEMU is not set
# CONFIG_DRM_QXL is not set
# CONFIG_DRM_BOCHS is not set
CONFIG_DRM_BRIDGE=y
#
# Display Interface Bridges
#
# CONFIG_DRM_ANALOGIX_ANX78XX is not set
# CONFIG_DRM_LEGACY is not set
#
# Frame buffer Devices
#
CONFIG_FB=y
# CONFIG_FIRMWARE_EDID is not set
CONFIG_FB_CMDLINE=y
CONFIG_FB_NOTIFY=y
# CONFIG_FB_DDC is not set
# CONFIG_FB_BOOT_VESA_SUPPORT is not set
CONFIG_FB_CFB_FILLRECT=y
CONFIG_FB_CFB_COPYAREA=y
CONFIG_FB_CFB_IMAGEBLIT=y
# CONFIG_FB_CFB_REV_PIXELS_IN_BYTE is not set
CONFIG_FB_SYS_FILLRECT=y
CONFIG_FB_SYS_COPYAREA=y
CONFIG_FB_SYS_IMAGEBLIT=y
# CONFIG_FB_FOREIGN_ENDIAN is not set
CONFIG_FB_SYS_FOPS=y
CONFIG_FB_DEFERRED_IO=y
# CONFIG_FB_SVGALIB is not set
# CONFIG_FB_MACMODES is not set
CONFIG_FB_BACKLIGHT=y
# CONFIG_FB_MODE_HELPERS is not set
# CONFIG_FB_TILEBLITTING is not set
#
# Frame buffer hardware drivers
#
# CONFIG_FB_CIRRUS is not set
# CONFIG_FB_PM2 is not set
# CONFIG_FB_CYBER2000 is not set
# CONFIG_FB_ARC is not set
# CONFIG_FB_ASILIANT is not set
# CONFIG_FB_IMSTT is not set
# CONFIG_FB_VGA16 is not set
# CONFIG_FB_VESA is not set
# CONFIG_FB_N411 is not set
# CONFIG_FB_HGA is not set
# CONFIG_FB_OPENCORES is not set
# CONFIG_FB_S1D13XXX is not set
# CONFIG_FB_NVIDIA is not set
# CONFIG_FB_RIVA is not set
# CONFIG_FB_I740 is not set
# CONFIG_FB_LE80578 is not set
# CONFIG_FB_MATROX is not set
# CONFIG_FB_RADEON is not set
# CONFIG_FB_ATY128 is not set
# CONFIG_FB_ATY is not set
# CONFIG_FB_S3 is not set
# CONFIG_FB_SAVAGE is not set
# CONFIG_FB_SIS is not set
# CONFIG_FB_NEOMAGIC is not set
# CONFIG_FB_KYRO is not set
# CONFIG_FB_3DFX is not set
# CONFIG_FB_VOODOO1 is not set
# CONFIG_FB_VT8623 is not set
# CONFIG_FB_TRIDENT is not set
# CONFIG_FB_ARK is not set
# CONFIG_FB_PM3 is not set
# CONFIG_FB_CARMINE is not set
# CONFIG_FB_SMSCUFX is not set
# CONFIG_FB_UDL is not set
# CONFIG_FB_IBM_GXT4500 is not set
# CONFIG_FB_VIRTUAL is not set
# CONFIG_FB_METRONOME is not set
# CONFIG_FB_MB862XX is not set
# CONFIG_FB_BROADSHEET is not set
# CONFIG_FB_AUO_K190X is not set
# CONFIG_FB_SIMPLE is not set
# CONFIG_FB_SM712 is not set
CONFIG_BACKLIGHT_LCD_SUPPORT=y
# CONFIG_LCD_CLASS_DEVICE is not set
CONFIG_BACKLIGHT_CLASS_DEVICE=y
# CONFIG_BACKLIGHT_GENERIC is not set
# CONFIG_BACKLIGHT_APPLE is not set
# CONFIG_BACKLIGHT_PM8941_WLED is not set
# CONFIG_BACKLIGHT_SAHARA is not set
# CONFIG_BACKLIGHT_ADP8860 is not set
# CONFIG_BACKLIGHT_ADP8870 is not set
# CONFIG_BACKLIGHT_LM3639 is not set
# CONFIG_BACKLIGHT_LV5207LP is not set
# CONFIG_BACKLIGHT_BD6107 is not set
# CONFIG_VGASTATE is not set
CONFIG_HDMI=y
#
# Console display driver support
#
CONFIG_VGA_CONSOLE=y
# CONFIG_VGACON_SOFT_SCROLLBACK is not set
CONFIG_DUMMY_CONSOLE=y
CONFIG_DUMMY_CONSOLE_COLUMNS=800
CONFIG_DUMMY_CONSOLE_ROWS=250
CONFIG_FRAMEBUFFER_CONSOLE=y
CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY=y
# CONFIG_FRAMEBUFFER_CONSOLE_ROTATION is not set
# CONFIG_LOGO is not set
CONFIG_SOUND=m
# CONFIG_SOUND_OSS_CORE is not set
CONFIG_SND=m
CONFIG_SND_TIMER=m
CONFIG_SND_PCM=m
CONFIG_SND_JACK=y
CONFIG_SND_JACK_INPUT_DEV=y
# CONFIG_SND_SEQUENCER is not set
# CONFIG_SND_MIXER_OSS is not set
# CONFIG_SND_PCM_OSS is not set
CONFIG_SND_PCM_TIMER=y
# CONFIG_SND_HRTIMER is not set
CONFIG_SND_DYNAMIC_MINORS=y
CONFIG_SND_MAX_CARDS=32
# CONFIG_SND_SUPPORT_OLD_API is not set
# CONFIG_SND_PROC_FS is not set
# CONFIG_SND_VERBOSE_PRINTK is not set
# CONFIG_SND_DEBUG is not set
CONFIG_SND_VMASTER=y
CONFIG_SND_DMA_SGBUF=y
# CONFIG_SND_RAWMIDI_SEQ is not set
# CONFIG_SND_OPL3_LIB_SEQ is not set
# CONFIG_SND_OPL4_LIB_SEQ is not set
# CONFIG_SND_SBAWE_SEQ is not set
# CONFIG_SND_EMU10K1_SEQ is not set
CONFIG_SND_DRIVERS=y
# CONFIG_SND_DUMMY is not set
# CONFIG_SND_ALOOP is not set
# CONFIG_SND_MTPAV is not set
# CONFIG_SND_SERIAL_U16550 is not set
# CONFIG_SND_MPU401 is not set
CONFIG_SND_PCI=y
# CONFIG_SND_AD1889 is not set
# CONFIG_SND_ALS300 is not set
# CONFIG_SND_ALS4000 is not set
# CONFIG_SND_ALI5451 is not set
# CONFIG_SND_ASIHPI is not set
# CONFIG_SND_ATIIXP is not set
# CONFIG_SND_ATIIXP_MODEM is not set
# CONFIG_SND_AU8810 is not set
# CONFIG_SND_AU8820 is not set
# CONFIG_SND_AU8830 is not set
# CONFIG_SND_AW2 is not set
# CONFIG_SND_AZT3328 is not set
# CONFIG_SND_BT87X is not set
# CONFIG_SND_CA0106 is not set
# CONFIG_SND_CMIPCI is not set
# CONFIG_SND_OXYGEN is not set
# CONFIG_SND_CS4281 is not set
# CONFIG_SND_CS46XX is not set
# CONFIG_SND_CTXFI is not set
# CONFIG_SND_DARLA20 is not set
# CONFIG_SND_GINA20 is not set
# CONFIG_SND_LAYLA20 is not set
# CONFIG_SND_DARLA24 is not set
# CONFIG_SND_GINA24 is not set
# CONFIG_SND_LAYLA24 is not set
# CONFIG_SND_MONA is not set
# CONFIG_SND_MIA is not set
# CONFIG_SND_ECHO3G is not set
# CONFIG_SND_INDIGO is not set
# CONFIG_SND_INDIGOIO is not set
# CONFIG_SND_INDIGODJ is not set
# CONFIG_SND_INDIGOIOX is not set
# CONFIG_SND_INDIGODJX is not set
# CONFIG_SND_EMU10K1 is not set
# CONFIG_SND_EMU10K1X is not set
# CONFIG_SND_ENS1370 is not set
# CONFIG_SND_ENS1371 is not set
# CONFIG_SND_ES1938 is not set
# CONFIG_SND_ES1968 is not set
# CONFIG_SND_FM801 is not set
# CONFIG_SND_HDSP is not set
# CONFIG_SND_HDSPM is not set
# CONFIG_SND_ICE1712 is not set
# CONFIG_SND_ICE1724 is not set
# CONFIG_SND_INTEL8X0 is not set
# CONFIG_SND_INTEL8X0M is not set
# CONFIG_SND_KORG1212 is not set
# CONFIG_SND_LOLA is not set
# CONFIG_SND_LX6464ES is not set
# CONFIG_SND_MAESTRO3 is not set
# CONFIG_SND_MIXART is not set
# CONFIG_SND_NM256 is not set
# CONFIG_SND_PCXHR is not set
# CONFIG_SND_RIPTIDE is not set
# CONFIG_SND_RME32 is not set
# CONFIG_SND_RME96 is not set
# CONFIG_SND_RME9652 is not set
# CONFIG_SND_SE6X is not set
# CONFIG_SND_SONICVIBES is not set
# CONFIG_SND_TRIDENT is not set
# CONFIG_SND_VIA82XX is not set
# CONFIG_SND_VIA82XX_MODEM is not set
# CONFIG_SND_VIRTUOSO is not set
# CONFIG_SND_VX222 is not set
# CONFIG_SND_YMFPCI is not set
#
# HD-Audio
#
CONFIG_SND_HDA=m
CONFIG_SND_HDA_INTEL=m
# CONFIG_SND_HDA_HWDEP is not set
CONFIG_SND_HDA_RECONFIG=y
# CONFIG_SND_HDA_INPUT_BEEP is not set
CONFIG_SND_HDA_PATCH_LOADER=y
CONFIG_SND_HDA_CODEC_REALTEK=m
# CONFIG_SND_HDA_CODEC_ANALOG is not set
# CONFIG_SND_HDA_CODEC_SIGMATEL is not set
# CONFIG_SND_HDA_CODEC_VIA is not set
# CONFIG_SND_HDA_CODEC_HDMI is not set
# CONFIG_SND_HDA_CODEC_CIRRUS is not set
# CONFIG_SND_HDA_CODEC_CONEXANT is not set
# CONFIG_SND_HDA_CODEC_CA0110 is not set
# CONFIG_SND_HDA_CODEC_CA0132 is not set
# CONFIG_SND_HDA_CODEC_CMEDIA is not set
# CONFIG_SND_HDA_CODEC_SI3054 is not set
CONFIG_SND_HDA_GENERIC=m
CONFIG_SND_HDA_POWER_SAVE_DEFAULT=42
CONFIG_SND_HDA_CORE=m
CONFIG_SND_HDA_PREALLOC_SIZE=4096
# CONFIG_SND_SPI is not set
# CONFIG_SND_USB is not set
# CONFIG_SND_SOC is not set
# CONFIG_SOUND_PRIME is not set
#
# HID support
#
CONFIG_HID=m
# CONFIG_HID_BATTERY_STRENGTH is not set
CONFIG_HIDRAW=y
# CONFIG_UHID is not set
CONFIG_HID_GENERIC=m
#
# Special HID drivers
#
# CONFIG_HID_A4TECH is not set
# CONFIG_HID_ACRUX is not set
# CONFIG_HID_APPLE is not set
# CONFIG_HID_APPLEIR is not set
# CONFIG_HID_AUREAL is not set
# CONFIG_HID_BELKIN is not set
# CONFIG_HID_BETOP_FF is not set
# CONFIG_HID_CHERRY is not set
# CONFIG_HID_CHICONY is not set
# CONFIG_HID_PRODIKEYS is not set
# CONFIG_HID_CMEDIA is not set
# CONFIG_HID_CYPRESS is not set
# CONFIG_HID_DRAGONRISE is not set
# CONFIG_HID_EMS_FF is not set
# CONFIG_HID_ELECOM is not set
# CONFIG_HID_ELO is not set
# CONFIG_HID_EZKEY is not set
# CONFIG_HID_GEMBIRD is not set
# CONFIG_HID_GFRM is not set
# CONFIG_HID_HOLTEK is not set
# CONFIG_HID_KEYTOUCH is not set
# CONFIG_HID_KYE is not set
# CONFIG_HID_UCLOGIC is not set
# CONFIG_HID_WALTOP is not set
# CONFIG_HID_GYRATION is not set
# CONFIG_HID_ICADE is not set
# CONFIG_HID_TWINHAN is not set
# CONFIG_HID_KENSINGTON is not set
# CONFIG_HID_LCPOWER is not set
# CONFIG_HID_LENOVO is not set
# CONFIG_HID_LOGITECH is not set
# CONFIG_HID_MAGICMOUSE is not set
# CONFIG_HID_MICROSOFT is not set
# CONFIG_HID_MONTEREY is not set
# CONFIG_HID_MULTITOUCH is not set
# CONFIG_HID_NTRIG is not set
# CONFIG_HID_ORTEK is not set
# CONFIG_HID_PANTHERLORD is not set
# CONFIG_HID_PENMOUNT is not set
# CONFIG_HID_PETALYNX is not set
# CONFIG_HID_PICOLCD is not set
# CONFIG_HID_PLANTRONICS is not set
# CONFIG_HID_PRIMAX is not set
# CONFIG_HID_ROCCAT is not set
# CONFIG_HID_SAITEK is not set
# CONFIG_HID_SAMSUNG is not set
# CONFIG_HID_SPEEDLINK is not set
# CONFIG_HID_STEELSERIES is not set
# CONFIG_HID_SUNPLUS is not set
# CONFIG_HID_RMI is not set
# CONFIG_HID_GREENASIA is not set
# CONFIG_HID_SMARTJOYPLUS is not set
# CONFIG_HID_TIVO is not set
# CONFIG_HID_TOPSEED is not set
# CONFIG_HID_THRUSTMASTER is not set
# CONFIG_HID_WACOM is not set
# CONFIG_HID_XINMO is not set
# CONFIG_HID_ZEROPLUS is not set
# CONFIG_HID_ZYDACRON is not set
# CONFIG_HID_SENSOR_HUB is not set
# CONFIG_HID_ALPS is not set
#
# USB HID support
#
CONFIG_USB_HID=m
CONFIG_HID_PID=y
CONFIG_USB_HIDDEV=y
#
# USB HID Boot Protocol drivers
#
# CONFIG_USB_KBD is not set
# CONFIG_USB_MOUSE is not set
#
# I2C HID support
#
# CONFIG_I2C_HID is not set
#
# Intel ISH HID support
#
# CONFIG_INTEL_ISH_HID is not set
CONFIG_USB_OHCI_LITTLE_ENDIAN=y
CONFIG_USB_SUPPORT=y
CONFIG_USB_COMMON=m
CONFIG_USB_ARCH_HAS_HCD=y
CONFIG_USB=m
# CONFIG_USB_ANNOUNCE_NEW_DEVICES is not set
#
# Miscellaneous USB options
#
CONFIG_USB_DEFAULT_PERSIST=y
CONFIG_USB_DYNAMIC_MINORS=y
# CONFIG_USB_OTG is not set
# CONFIG_USB_OTG_WHITELIST is not set
# CONFIG_USB_OTG_BLACKLIST_HUB is not set
# CONFIG_USB_MON is not set
# CONFIG_USB_WUSB_CBAF is not set
#
# USB Host Controller Drivers
#
# CONFIG_USB_C67X00_HCD is not set
# CONFIG_USB_XHCI_HCD is not set
CONFIG_USB_EHCI_HCD=m
CONFIG_USB_EHCI_ROOT_HUB_TT=y
CONFIG_USB_EHCI_TT_NEWSCHED=y
CONFIG_USB_EHCI_PCI=m
# CONFIG_USB_EHCI_HCD_PLATFORM is not set
# CONFIG_USB_OXU210HP_HCD is not set
# CONFIG_USB_ISP116X_HCD is not set
# CONFIG_USB_ISP1362_HCD is not set
# CONFIG_USB_FOTG210_HCD is not set
# CONFIG_USB_MAX3421_HCD is not set
# CONFIG_USB_OHCI_HCD is not set
# CONFIG_USB_UHCI_HCD is not set
# CONFIG_USB_SL811_HCD is not set
# CONFIG_USB_R8A66597_HCD is not set
# CONFIG_USB_HCD_TEST_MODE is not set
#
# USB Device Class drivers
#
# CONFIG_USB_ACM is not set
# CONFIG_USB_PRINTER is not set
# CONFIG_USB_WDM is not set
# CONFIG_USB_TMC is not set
#
# NOTE: USB_STORAGE depends on SCSI but BLK_DEV_SD may
#
#
# also be needed; see USB_STORAGE Help for more info
#
CONFIG_USB_STORAGE=m
# CONFIG_USB_STORAGE_DEBUG is not set
# CONFIG_USB_STORAGE_REALTEK is not set
# CONFIG_USB_STORAGE_DATAFAB is not set
# CONFIG_USB_STORAGE_FREECOM is not set
# CONFIG_USB_STORAGE_ISD200 is not set
# CONFIG_USB_STORAGE_USBAT is not set
# CONFIG_USB_STORAGE_SDDR09 is not set
# CONFIG_USB_STORAGE_SDDR55 is not set
# CONFIG_USB_STORAGE_JUMPSHOT is not set
# CONFIG_USB_STORAGE_ALAUDA is not set
# CONFIG_USB_STORAGE_ONETOUCH is not set
# CONFIG_USB_STORAGE_KARMA is not set
# CONFIG_USB_STORAGE_CYPRESS_ATACB is not set
# CONFIG_USB_STORAGE_ENE_UB6250 is not set
CONFIG_USB_UAS=m
#
# USB Imaging devices
#
# CONFIG_USB_MDC800 is not set
# CONFIG_USB_MICROTEK is not set
# CONFIG_USBIP_CORE is not set
# CONFIG_USB_MUSB_HDRC is not set
# CONFIG_USB_DWC3 is not set
# CONFIG_USB_DWC2 is not set
# CONFIG_USB_CHIPIDEA is not set
# CONFIG_USB_ISP1760 is not set
#
# USB port drivers
#
# CONFIG_USB_SERIAL is not set
#
# USB Miscellaneous drivers
#
# CONFIG_USB_EMI62 is not set
# CONFIG_USB_EMI26 is not set
# CONFIG_USB_ADUTUX is not set
# CONFIG_USB_SEVSEG is not set
# CONFIG_USB_RIO500 is not set
# CONFIG_USB_LEGOTOWER is not set
# CONFIG_USB_LCD is not set
# CONFIG_USB_CYPRESS_CY7C63 is not set
# CONFIG_USB_CYTHERM is not set
# CONFIG_USB_IDMOUSE is not set
# CONFIG_USB_FTDI_ELAN is not set
# CONFIG_USB_APPLEDISPLAY is not set
# CONFIG_USB_SISUSBVGA is not set
# CONFIG_USB_LD is not set
# CONFIG_USB_TRANCEVIBRATOR is not set
# CONFIG_USB_IOWARRIOR is not set
# CONFIG_USB_TEST is not set
# CONFIG_USB_EHSET_TEST_FIXTURE is not set
# CONFIG_USB_ISIGHTFW is not set
# CONFIG_USB_YUREX is not set
# CONFIG_USB_EZUSB_FX2 is not set
# CONFIG_USB_HSIC_USB3503 is not set
# CONFIG_USB_HSIC_USB4604 is not set
# CONFIG_USB_LINK_LAYER_TEST is not set
# CONFIG_UCSI is not set
#
# USB Physical Layer drivers
#
# CONFIG_USB_PHY is not set
# CONFIG_NOP_USB_XCEIV is not set
# CONFIG_USB_ISP1301 is not set
CONFIG_USB_GADGET=m
# CONFIG_USB_GADGET_DEBUG is not set
# CONFIG_USB_GADGET_DEBUG_FILES is not set
# CONFIG_USB_GADGET_DEBUG_FS is not set
CONFIG_USB_GADGET_VBUS_DRAW=2
CONFIG_USB_GADGET_STORAGE_NUM_BUFFERS=2
#
# USB Peripheral Controller
#
# CONFIG_USB_FOTG210_UDC is not set
# CONFIG_USB_GR_UDC is not set
# CONFIG_USB_R8A66597 is not set
# CONFIG_USB_PXA27X is not set
# CONFIG_USB_MV_UDC is not set
# CONFIG_USB_MV_U3D is not set
# CONFIG_USB_M66592 is not set
# CONFIG_USB_BDC_UDC is not set
# CONFIG_USB_AMD5536UDC is not set
# CONFIG_USB_NET2272 is not set
# CONFIG_USB_NET2280 is not set
# CONFIG_USB_GOKU is not set
# CONFIG_USB_EG20T is not set
# CONFIG_USB_DUMMY_HCD is not set
# CONFIG_USB_CONFIGFS is not set
# CONFIG_USB_ZERO is not set
# CONFIG_USB_AUDIO is not set
# CONFIG_USB_ETH is not set
# CONFIG_USB_G_NCM is not set
# CONFIG_USB_GADGETFS is not set
# CONFIG_USB_FUNCTIONFS is not set
# CONFIG_USB_MASS_STORAGE is not set
# CONFIG_USB_G_SERIAL is not set
# CONFIG_USB_MIDI_GADGET is not set
# CONFIG_USB_G_PRINTER is not set
# CONFIG_USB_CDC_COMPOSITE is not set
# CONFIG_USB_G_ACM_MS is not set
# CONFIG_USB_G_MULTI is not set
# CONFIG_USB_G_HID is not set
# CONFIG_USB_G_DBGP is not set
# CONFIG_USB_ULPI_BUS is not set
# CONFIG_UWB is not set
# CONFIG_MMC is not set
# CONFIG_MEMSTICK is not set
# CONFIG_NEW_LEDS is not set
# CONFIG_ACCESSIBILITY is not set
# CONFIG_INFINIBAND is not set
CONFIG_EDAC_ATOMIC_SCRUB=y
CONFIG_EDAC_SUPPORT=y
CONFIG_EDAC=y
CONFIG_EDAC_LEGACY_SYSFS=y
# CONFIG_EDAC_DEBUG is not set
# CONFIG_EDAC_MM_EDAC is not set
CONFIG_RTC_LIB=y
CONFIG_RTC_MC146818_LIB=y
CONFIG_RTC_CLASS=y
CONFIG_RTC_HCTOSYS=y
CONFIG_RTC_HCTOSYS_DEVICE="rtc0"
CONFIG_RTC_SYSTOHC=y
CONFIG_RTC_SYSTOHC_DEVICE="n"
# CONFIG_RTC_DEBUG is not set
#
# RTC interfaces
#
CONFIG_RTC_INTF_SYSFS=y
CONFIG_RTC_INTF_PROC=y
CONFIG_RTC_INTF_DEV=y
CONFIG_RTC_INTF_DEV_UIE_EMUL=y
# CONFIG_RTC_DRV_TEST is not set
#
# I2C RTC drivers
#
# CONFIG_RTC_DRV_ABB5ZES3 is not set
# CONFIG_RTC_DRV_ABX80X is not set
# CONFIG_RTC_DRV_DS1307 is not set
# CONFIG_RTC_DRV_DS1374 is not set
# CONFIG_RTC_DRV_DS1672 is not set
# CONFIG_RTC_DRV_MAX6900 is not set
# CONFIG_RTC_DRV_RS5C372 is not set
# CONFIG_RTC_DRV_ISL1208 is not set
# CONFIG_RTC_DRV_ISL12022 is not set
# CONFIG_RTC_DRV_X1205 is not set
# CONFIG_RTC_DRV_PCF8523 is not set
# CONFIG_RTC_DRV_PCF85063 is not set
# CONFIG_RTC_DRV_PCF8563 is not set
# CONFIG_RTC_DRV_PCF8583 is not set
# CONFIG_RTC_DRV_M41T80 is not set
# CONFIG_RTC_DRV_BQ32K is not set
# CONFIG_RTC_DRV_S35390A is not set
# CONFIG_RTC_DRV_FM3130 is not set
# CONFIG_RTC_DRV_RX8010 is not set
# CONFIG_RTC_DRV_RX8581 is not set
# CONFIG_RTC_DRV_RX8025 is not set
# CONFIG_RTC_DRV_EM3027 is not set
# CONFIG_RTC_DRV_RV8803 is not set
#
# SPI RTC drivers
#
# CONFIG_RTC_DRV_M41T93 is not set
# CONFIG_RTC_DRV_M41T94 is not set
# CONFIG_RTC_DRV_DS1302 is not set
# CONFIG_RTC_DRV_DS1305 is not set
# CONFIG_RTC_DRV_DS1343 is not set
# CONFIG_RTC_DRV_DS1347 is not set
# CONFIG_RTC_DRV_DS1390 is not set
# CONFIG_RTC_DRV_MAX6916 is not set
# CONFIG_RTC_DRV_R9701 is not set
# CONFIG_RTC_DRV_RX4581 is not set
# CONFIG_RTC_DRV_RX6110 is not set
# CONFIG_RTC_DRV_RS5C348 is not set
# CONFIG_RTC_DRV_MAX6902 is not set
# CONFIG_RTC_DRV_PCF2123 is not set
# CONFIG_RTC_DRV_MCP795 is not set
CONFIG_RTC_I2C_AND_SPI=y
#
# SPI and I2C RTC drivers
#
# CONFIG_RTC_DRV_DS3232 is not set
# CONFIG_RTC_DRV_PCF2127 is not set
# CONFIG_RTC_DRV_RV3029C2 is not set
#
# Platform RTC drivers
#
CONFIG_RTC_DRV_CMOS=y
# CONFIG_RTC_DRV_DS1286 is not set
# CONFIG_RTC_DRV_DS1511 is not set
# CONFIG_RTC_DRV_DS1553 is not set
# CONFIG_RTC_DRV_DS1685_FAMILY is not set
# CONFIG_RTC_DRV_DS1742 is not set
# CONFIG_RTC_DRV_DS2404 is not set
# CONFIG_RTC_DRV_STK17TA8 is not set
# CONFIG_RTC_DRV_M48T86 is not set
# CONFIG_RTC_DRV_M48T35 is not set
# CONFIG_RTC_DRV_M48T59 is not set
# CONFIG_RTC_DRV_MSM6242 is not set
# CONFIG_RTC_DRV_BQ4802 is not set
# CONFIG_RTC_DRV_RP5C01 is not set
# CONFIG_RTC_DRV_V3020 is not set
#
# on-CPU RTC drivers
#
#
# HID Sensor RTC drivers
#
# CONFIG_RTC_DRV_HID_SENSOR_TIME is not set
CONFIG_DMADEVICES=y
# CONFIG_DMADEVICES_DEBUG is not set
#
# DMA Devices
#
CONFIG_DMA_ACPI=y
# CONFIG_INTEL_IDMA64 is not set
# CONFIG_INTEL_IOATDMA is not set
# CONFIG_QCOM_HIDMA_MGMT is not set
# CONFIG_QCOM_HIDMA is not set
# CONFIG_DW_DMAC is not set
# CONFIG_DW_DMAC_PCI is not set
#
# DMABUF options
#
# CONFIG_SYNC_FILE is not set
# CONFIG_AUXDISPLAY is not set
# CONFIG_UIO is not set
# CONFIG_VFIO is not set
# CONFIG_VIRT_DRIVERS is not set
#
# Virtio drivers
#
# CONFIG_VIRTIO_PCI is not set
# CONFIG_VIRTIO_MMIO is not set
#
# Microsoft Hyper-V guest support
#
# CONFIG_STAGING is not set
CONFIG_X86_PLATFORM_DEVICES=y
# CONFIG_ACER_WMI is not set
# CONFIG_ACERHDF is not set
# CONFIG_ASUS_LAPTOP is not set
# CONFIG_DELL_WMI_AIO is not set
# CONFIG_DELL_SMO8800 is not set
# CONFIG_FUJITSU_LAPTOP is not set
# CONFIG_FUJITSU_TABLET is not set
# CONFIG_HP_ACCEL is not set
# CONFIG_HP_WIRELESS is not set
# CONFIG_HP_WMI is not set
# CONFIG_PANASONIC_LAPTOP is not set
# CONFIG_THINKPAD_ACPI is not set
# CONFIG_SENSORS_HDAPS is not set
# CONFIG_ASUS_WIRELESS is not set
CONFIG_ACPI_WMI=y
# CONFIG_MSI_WMI is not set
# CONFIG_TOPSTAR_LAPTOP is not set
# CONFIG_TOSHIBA_BT_RFKILL is not set
# CONFIG_TOSHIBA_HAPS is not set
# CONFIG_TOSHIBA_WMI is not set
# CONFIG_ACPI_CMPC is not set
# CONFIG_INTEL_HID_EVENT is not set
# CONFIG_INTEL_VBTN is not set
# CONFIG_INTEL_IPS is not set
# CONFIG_INTEL_PMC_CORE is not set
# CONFIG_IBM_RTL is not set
# CONFIG_SAMSUNG_LAPTOP is not set
CONFIG_MXM_WMI=y
# CONFIG_SAMSUNG_Q10 is not set
# CONFIG_APPLE_GMUX is not set
# CONFIG_INTEL_RST is not set
# CONFIG_INTEL_SMARTCONNECT is not set
# CONFIG_PVPANIC is not set
# CONFIG_INTEL_PMC_IPC is not set
# CONFIG_SURFACE_PRO3_BUTTON is not set
# CONFIG_INTEL_PUNIT_IPC is not set
# CONFIG_CHROME_PLATFORMS is not set
#
# Hardware Spinlock drivers
#
#
# Clock Source drivers
#
CONFIG_CLKEVT_I8253=y
CONFIG_CLKBLD_I8253=y
# CONFIG_ATMEL_PIT is not set
# CONFIG_SH_TIMER_CMT is not set
# CONFIG_SH_TIMER_MTU2 is not set
# CONFIG_SH_TIMER_TMU is not set
# CONFIG_EM_TIMER_STI is not set
# CONFIG_MAILBOX is not set
CONFIG_IOMMU_API=y
CONFIG_IOMMU_SUPPORT=y
#
# Generic IOMMU Pagetable Support
#
CONFIG_IOMMU_IOVA=y
# CONFIG_AMD_IOMMU is not set
CONFIG_DMAR_TABLE=y
CONFIG_INTEL_IOMMU=y
# CONFIG_INTEL_IOMMU_SVM is not set
# CONFIG_INTEL_IOMMU_DEFAULT_ON is not set
CONFIG_INTEL_IOMMU_FLOPPY_WA=y
CONFIG_IRQ_REMAP=y
#
# Remoteproc drivers
#
# CONFIG_STE_MODEM_RPROC is not set
#
# Rpmsg drivers
#
#
# SOC (System On Chip) specific Drivers
#
#
# Broadcom SoC drivers
#
# CONFIG_SUNXI_SRAM is not set
# CONFIG_SOC_TI is not set
# CONFIG_PM_DEVFREQ is not set
# CONFIG_EXTCON is not set
CONFIG_MEMORY=y
# CONFIG_IIO is not set
# CONFIG_NTB is not set
# CONFIG_VME_BUS is not set
# CONFIG_PWM is not set
CONFIG_ARM_GIC_MAX_NR=1
# CONFIG_IPACK_BUS is not set
CONFIG_RESET_CONTROLLER=y
# CONFIG_RESET_ATH79 is not set
# CONFIG_RESET_BERLIN is not set
# CONFIG_RESET_LPC18XX is not set
# CONFIG_RESET_MESON is not set
# CONFIG_RESET_PISTACHIO is not set
# CONFIG_RESET_SOCFPGA is not set
# CONFIG_RESET_STM32 is not set
# CONFIG_RESET_SUNXI is not set
# CONFIG_TI_SYSCON_RESET is not set
# CONFIG_RESET_ZYNQ is not set
# CONFIG_FMC is not set
#
# PHY Subsystem
#
CONFIG_GENERIC_PHY=y
# CONFIG_PHY_PXA_28NM_HSIC is not set
# CONFIG_PHY_PXA_28NM_USB2 is not set
# CONFIG_BCM_KONA_USB2_PHY is not set
CONFIG_POWERCAP=y
# CONFIG_MCB is not set
#
# Performance monitor support
#
CONFIG_RAS=y
# CONFIG_THUNDERBOLT is not set
#
# Android
#
# CONFIG_ANDROID is not set
# CONFIG_LIBNVDIMM is not set
# CONFIG_DEV_DAX is not set
# CONFIG_NVMEM is not set
# CONFIG_STM is not set
# CONFIG_INTEL_TH is not set
#
# FPGA Configuration Support
#
# CONFIG_FPGA is not set
#
# Firmware Drivers
#
# CONFIG_EDD is not set
# CONFIG_FIRMWARE_MEMMAP is not set
# CONFIG_DELL_RBU is not set
# CONFIG_DCDBAS is not set
# CONFIG_DMIID is not set
# CONFIG_DMI_SYSFS is not set
CONFIG_DMI_SCAN_MACHINE_NON_EFI_FALLBACK=y
# CONFIG_ISCSI_IBFT_FIND is not set
# CONFIG_FW_CFG_SYSFS is not set
# CONFIG_GOOGLE_FIRMWARE is not set
CONFIG_UEFI_CPER=y
#
# File systems
#
CONFIG_DCACHE_WORD_ACCESS=y
# CONFIG_EXT2_FS is not set
# CONFIG_EXT3_FS is not set
CONFIG_EXT4_FS=y
CONFIG_EXT4_USE_FOR_EXT2=y
CONFIG_EXT4_FS_POSIX_ACL=y
# CONFIG_EXT4_FS_SECURITY is not set
# CONFIG_EXT4_ENCRYPTION is not set
# CONFIG_EXT4_DEBUG is not set
CONFIG_JBD2=y
# CONFIG_JBD2_DEBUG is not set
CONFIG_FS_MBCACHE=y
# CONFIG_REISERFS_FS is not set
# CONFIG_JFS_FS is not set
# CONFIG_XFS_FS is not set
# CONFIG_GFS2_FS is not set
# CONFIG_OCFS2_FS is not set
# CONFIG_BTRFS_FS is not set
# CONFIG_NILFS2_FS is not set
# CONFIG_F2FS_FS is not set
# CONFIG_FS_DAX is not set
CONFIG_FS_POSIX_ACL=y
CONFIG_EXPORTFS=y
# CONFIG_EXPORTFS_BLOCK_OPS is not set
CONFIG_FILE_LOCKING=y
# CONFIG_MANDATORY_FILE_LOCKING is not set
# CONFIG_FS_ENCRYPTION is not set
CONFIG_FSNOTIFY=y
# CONFIG_DNOTIFY is not set
CONFIG_INOTIFY_USER=y
# CONFIG_FANOTIFY is not set
# CONFIG_QUOTA is not set
# CONFIG_QUOTACTL is not set
# CONFIG_AUTOFS4_FS is not set
# CONFIG_FUSE_FS is not set
# CONFIG_OVERLAY_FS is not set
#
# Caches
#
# CONFIG_FSCACHE is not set
#
# CD-ROM/DVD Filesystems
#
# CONFIG_ISO9660_FS is not set
# CONFIG_UDF_FS is not set
#
# DOS/FAT/NT Filesystems
#
CONFIG_FAT_FS=m
# CONFIG_MSDOS_FS is not set
CONFIG_VFAT_FS=m
CONFIG_FAT_DEFAULT_CODEPAGE=437
CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1"
CONFIG_FAT_DEFAULT_UTF8=y
# CONFIG_NTFS_FS is not set
#
# Pseudo filesystems
#
CONFIG_PROC_FS=y
CONFIG_PROC_KCORE=y
CONFIG_PROC_VMCORE=y
CONFIG_PROC_SYSCTL=y
CONFIG_PROC_PAGE_MONITOR=y
# CONFIG_PROC_CHILDREN is not set
CONFIG_KERNFS=y
CONFIG_SYSFS=y
CONFIG_TMPFS=y
CONFIG_TMPFS_POSIX_ACL=y
CONFIG_TMPFS_XATTR=y
CONFIG_HUGETLBFS=y
CONFIG_HUGETLB_PAGE=y
CONFIG_CONFIGFS_FS=y
CONFIG_MISC_FILESYSTEMS=y
# CONFIG_ORANGEFS_FS is not set
# CONFIG_ADFS_FS is not set
# CONFIG_AFFS_FS is not set
# CONFIG_HFS_FS is not set
# CONFIG_HFSPLUS_FS is not set
# CONFIG_BEFS_FS is not set
# CONFIG_BFS_FS is not set
# CONFIG_EFS_FS is not set
# CONFIG_LOGFS is not set
# CONFIG_CRAMFS is not set
# CONFIG_SQUASHFS is not set
# CONFIG_VXFS_FS is not set
# CONFIG_MINIX_FS is not set
# CONFIG_OMFS_FS is not set
# CONFIG_HPFS_FS is not set
# CONFIG_QNX4FS_FS is not set
# CONFIG_QNX6FS_FS is not set
# CONFIG_ROMFS_FS is not set
CONFIG_PSTORE=y
# CONFIG_PSTORE_ZLIB_COMPRESS is not set
CONFIG_PSTORE_LZO_COMPRESS=y
# CONFIG_PSTORE_LZ4_COMPRESS is not set
# CONFIG_PSTORE_CONSOLE is not set
# CONFIG_PSTORE_PMSG is not set
# CONFIG_PSTORE_RAM is not set
# CONFIG_SYSV_FS is not set
# CONFIG_UFS_FS is not set
# CONFIG_NETWORK_FILESYSTEMS is not set
CONFIG_NLS=y
CONFIG_NLS_DEFAULT="utf8"
CONFIG_NLS_CODEPAGE_437=m
# CONFIG_NLS_CODEPAGE_737 is not set
# CONFIG_NLS_CODEPAGE_775 is not set
# CONFIG_NLS_CODEPAGE_850 is not set
CONFIG_NLS_CODEPAGE_852=m
CONFIG_NLS_CODEPAGE_855=m
# CONFIG_NLS_CODEPAGE_857 is not set
# CONFIG_NLS_CODEPAGE_860 is not set
# CONFIG_NLS_CODEPAGE_861 is not set
# CONFIG_NLS_CODEPAGE_862 is not set
# CONFIG_NLS_CODEPAGE_863 is not set
# CONFIG_NLS_CODEPAGE_864 is not set
# CONFIG_NLS_CODEPAGE_865 is not set
CONFIG_NLS_CODEPAGE_866=m
# CONFIG_NLS_CODEPAGE_869 is not set
# CONFIG_NLS_CODEPAGE_936 is not set
# CONFIG_NLS_CODEPAGE_950 is not set
# CONFIG_NLS_CODEPAGE_932 is not set
# CONFIG_NLS_CODEPAGE_949 is not set
# CONFIG_NLS_CODEPAGE_874 is not set
# CONFIG_NLS_ISO8859_8 is not set
# CONFIG_NLS_CODEPAGE_1250 is not set
# CONFIG_NLS_CODEPAGE_1251 is not set
# CONFIG_NLS_ASCII is not set
CONFIG_NLS_ISO8859_1=m
# CONFIG_NLS_ISO8859_2 is not set
# CONFIG_NLS_ISO8859_3 is not set
# CONFIG_NLS_ISO8859_4 is not set
CONFIG_NLS_ISO8859_5=m
# CONFIG_NLS_ISO8859_6 is not set
# CONFIG_NLS_ISO8859_7 is not set
# CONFIG_NLS_ISO8859_9 is not set
# CONFIG_NLS_ISO8859_13 is not set
# CONFIG_NLS_ISO8859_14 is not set
# CONFIG_NLS_ISO8859_15 is not set
# CONFIG_NLS_KOI8_R is not set
# CONFIG_NLS_KOI8_U is not set
# CONFIG_NLS_MAC_ROMAN is not set
# CONFIG_NLS_MAC_CELTIC is not set
# CONFIG_NLS_MAC_CENTEURO is not set
# CONFIG_NLS_MAC_CROATIAN is not set
# CONFIG_NLS_MAC_CYRILLIC is not set
# CONFIG_NLS_MAC_GAELIC is not set
# CONFIG_NLS_MAC_GREEK is not set
# CONFIG_NLS_MAC_ICELAND is not set
# CONFIG_NLS_MAC_INUIT is not set
# CONFIG_NLS_MAC_ROMANIAN is not set
# CONFIG_NLS_MAC_TURKISH is not set
# CONFIG_NLS_UTF8 is not set
# CONFIG_DLM is not set
#
# Kernel hacking
#
CONFIG_TRACE_IRQFLAGS_SUPPORT=y
#
# printk and dmesg options
#
# CONFIG_PRINTK_TIME is not set
CONFIG_MESSAGE_LOGLEVEL_DEFAULT=4
# CONFIG_BOOT_PRINTK_DELAY is not set
# CONFIG_DYNAMIC_DEBUG is not set
#
# Compile-time checks and compiler options
#
# CONFIG_DEBUG_INFO is not set
CONFIG_ENABLE_WARN_DEPRECATED=y
CONFIG_ENABLE_MUST_CHECK=y
CONFIG_FRAME_WARN=2048
# CONFIG_STRIP_ASM_SYMS is not set
# CONFIG_READABLE_ASM is not set
# CONFIG_UNUSED_SYMBOLS is not set
# CONFIG_PAGE_OWNER is not set
CONFIG_DEBUG_FS=y
# CONFIG_HEADERS_CHECK is not set
# CONFIG_DEBUG_SECTION_MISMATCH is not set
# CONFIG_SECTION_MISMATCH_WARN_ONLY is not set
CONFIG_ARCH_WANT_FRAME_POINTERS=y
CONFIG_FRAME_POINTER=y
# CONFIG_STACK_VALIDATION is not set
# CONFIG_DEBUG_FORCE_WEAK_PER_CPU is not set
CONFIG_MAGIC_SYSRQ=y
CONFIG_MAGIC_SYSRQ_DEFAULT_ENABLE=0x1
CONFIG_DEBUG_KERNEL=y
#
# Memory Debugging
#
# CONFIG_PAGE_EXTENSION is not set
# CONFIG_DEBUG_PAGEALLOC is not set
# CONFIG_PAGE_POISONING is not set
# CONFIG_DEBUG_OBJECTS is not set
# CONFIG_SLUB_DEBUG_ON is not set
# CONFIG_SLUB_STATS is not set
CONFIG_HAVE_DEBUG_KMEMLEAK=y
# CONFIG_DEBUG_KMEMLEAK is not set
# CONFIG_DEBUG_STACK_USAGE is not set
# CONFIG_DEBUG_VM is not set
# CONFIG_DEBUG_VIRTUAL is not set
# CONFIG_DEBUG_MEMORY_INIT is not set
# CONFIG_DEBUG_PER_CPU_MAPS is not set
CONFIG_HAVE_DEBUG_STACKOVERFLOW=y
# CONFIG_DEBUG_STACKOVERFLOW is not set
CONFIG_HAVE_ARCH_KMEMCHECK=y
CONFIG_HAVE_ARCH_KASAN=y
# CONFIG_KASAN is not set
CONFIG_ARCH_HAS_KCOV=y
# CONFIG_KCOV is not set
# CONFIG_DEBUG_SHIRQ is not set
#
# Debug Lockups and Hangs
#
CONFIG_LOCKUP_DETECTOR=y
CONFIG_HARDLOCKUP_DETECTOR=y
CONFIG_BOOTPARAM_HARDLOCKUP_PANIC=y
CONFIG_BOOTPARAM_HARDLOCKUP_PANIC_VALUE=1
# CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC is not set
CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC_VALUE=0
CONFIG_DETECT_HUNG_TASK=y
CONFIG_DEFAULT_HUNG_TASK_TIMEOUT=21
# CONFIG_BOOTPARAM_HUNG_TASK_PANIC is not set
CONFIG_BOOTPARAM_HUNG_TASK_PANIC_VALUE=0
CONFIG_WQ_WATCHDOG=y
# CONFIG_PANIC_ON_OOPS is not set
CONFIG_PANIC_ON_OOPS_VALUE=0
CONFIG_PANIC_TIMEOUT=0
# CONFIG_SCHED_DEBUG is not set
# CONFIG_SCHED_INFO is not set
# CONFIG_SCHEDSTATS is not set
# CONFIG_SCHED_STACK_END_CHECK is not set
# CONFIG_DEBUG_TIMEKEEPING is not set
# CONFIG_TIMER_STATS is not set
# CONFIG_DEBUG_PREEMPT is not set
#
# Lock Debugging (spinlocks, mutexes, etc...)
#
# CONFIG_DEBUG_RT_MUTEXES is not set
# CONFIG_DEBUG_SPINLOCK is not set
# CONFIG_DEBUG_MUTEXES is not set
# CONFIG_DEBUG_WW_MUTEX_SLOWPATH is not set
# CONFIG_DEBUG_LOCK_ALLOC is not set
# CONFIG_PROVE_LOCKING is not set
# CONFIG_LOCK_STAT is not set
# CONFIG_DEBUG_ATOMIC_SLEEP is not set
# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
# CONFIG_LOCK_TORTURE_TEST is not set
CONFIG_STACKTRACE=y
# CONFIG_DEBUG_KOBJECT is not set
CONFIG_DEBUG_BUGVERBOSE=y
CONFIG_DEBUG_LIST=y
# CONFIG_DEBUG_PI_LIST is not set
# CONFIG_DEBUG_SG is not set
# CONFIG_DEBUG_NOTIFIERS is not set
# CONFIG_DEBUG_CREDENTIALS is not set
#
# RCU Debugging
#
# CONFIG_PROVE_RCU is not set
# CONFIG_SPARSE_RCU_POINTER is not set
# CONFIG_TORTURE_TEST is not set
# CONFIG_RCU_PERF_TEST is not set
# CONFIG_RCU_TORTURE_TEST is not set
CONFIG_RCU_CPU_STALL_TIMEOUT=30
# CONFIG_RCU_TRACE is not set
# CONFIG_RCU_EQS_DEBUG is not set
# CONFIG_DEBUG_WQ_FORCE_RR_CPU is not set
# CONFIG_DEBUG_BLOCK_EXT_DEVT is not set
# CONFIG_CPU_HOTPLUG_STATE_CONTROL is not set
# CONFIG_NOTIFIER_ERROR_INJECTION is not set
# CONFIG_FAULT_INJECTION is not set
# CONFIG_LATENCYTOP is not set
CONFIG_USER_STACKTRACE_SUPPORT=y
CONFIG_HAVE_FUNCTION_TRACER=y
CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y
CONFIG_HAVE_DYNAMIC_FTRACE=y
CONFIG_HAVE_DYNAMIC_FTRACE_WITH_REGS=y
CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y
CONFIG_HAVE_SYSCALL_TRACEPOINTS=y
CONFIG_HAVE_FENTRY=y
CONFIG_HAVE_C_RECORDMCOUNT=y
CONFIG_TRACING_SUPPORT=y
# CONFIG_FTRACE is not set
#
# Runtime Testing
#
# CONFIG_LKDTM is not set
# CONFIG_TEST_LIST_SORT is not set
# CONFIG_BACKTRACE_SELF_TEST is not set
# CONFIG_RBTREE_TEST is not set
# CONFIG_INTERVAL_TREE_TEST is not set
# CONFIG_PERCPU_TEST is not set
# CONFIG_ATOMIC64_SELFTEST is not set
# CONFIG_TEST_HEXDUMP is not set
# CONFIG_TEST_STRING_HELPERS is not set
# CONFIG_TEST_KSTRTOX is not set
# CONFIG_TEST_PRINTF is not set
# CONFIG_TEST_BITMAP is not set
# CONFIG_TEST_UUID is not set
# CONFIG_TEST_RHASHTABLE is not set
# CONFIG_TEST_HASH is not set
# CONFIG_PROVIDE_OHCI1394_DMA_INIT is not set
# CONFIG_DMA_API_DEBUG is not set
# CONFIG_TEST_LKM is not set
# CONFIG_TEST_USER_COPY is not set
# CONFIG_TEST_BPF is not set
# CONFIG_TEST_FIRMWARE is not set
# CONFIG_TEST_UDELAY is not set
# CONFIG_MEMTEST is not set
# CONFIG_TEST_STATIC_KEYS is not set
CONFIG_BUG_ON_DATA_CORRUPTION=y
# CONFIG_SAMPLES is not set
CONFIG_HAVE_ARCH_KGDB=y
# CONFIG_KGDB is not set
CONFIG_ARCH_HAS_UBSAN_SANITIZE_ALL=y
# CONFIG_ARCH_WANTS_UBSAN_NO_NULL is not set
# CONFIG_UBSAN is not set
CONFIG_ARCH_HAS_DEVMEM_IS_ALLOWED=y
CONFIG_STRICT_DEVMEM=y
CONFIG_IO_STRICT_DEVMEM=y
CONFIG_X86_VERBOSE_BOOTUP=y
CONFIG_EARLY_PRINTK=y
# CONFIG_EARLY_PRINTK_DBGP is not set
CONFIG_X86_PTDUMP_CORE=y
# CONFIG_X86_PTDUMP is not set
# CONFIG_DEBUG_RODATA_TEST is not set
CONFIG_DEBUG_WX=y
CONFIG_DEBUG_SET_MODULE_RONX=y
# CONFIG_DEBUG_NX_TEST is not set
CONFIG_DOUBLEFAULT=y
# CONFIG_DEBUG_TLBFLUSH is not set
# CONFIG_IOMMU_STRESS is not set
CONFIG_HAVE_MMIOTRACE_SUPPORT=y
CONFIG_IO_DELAY_TYPE_0X80=0
CONFIG_IO_DELAY_TYPE_0XED=1
CONFIG_IO_DELAY_TYPE_UDELAY=2
CONFIG_IO_DELAY_TYPE_NONE=3
CONFIG_IO_DELAY_0X80=y
# CONFIG_IO_DELAY_0XED is not set
# CONFIG_IO_DELAY_UDELAY is not set
# CONFIG_IO_DELAY_NONE is not set
CONFIG_DEFAULT_IO_DELAY_TYPE=0
# CONFIG_DEBUG_BOOT_PARAMS is not set
# CONFIG_CPA_DEBUG is not set
# CONFIG_OPTIMIZE_INLINING is not set
# CONFIG_DEBUG_ENTRY is not set
# CONFIG_DEBUG_NMI_SELFTEST is not set
# CONFIG_X86_DEBUG_FPU is not set
# CONFIG_PUNIT_ATOM_DEBUG is not set
#
# Security options
#
# CONFIG_KEYS is not set
# CONFIG_SECURITY_DMESG_RESTRICT is not set
# CONFIG_SECURITY is not set
# CONFIG_SECURITYFS is not set
# CONFIG_INTEL_TXT is not set
CONFIG_HAVE_HARDENED_USERCOPY_ALLOCATOR=y
CONFIG_HAVE_ARCH_HARDENED_USERCOPY=y
# CONFIG_HARDENED_USERCOPY is not set
CONFIG_DEFAULT_SECURITY_DAC=y
CONFIG_DEFAULT_SECURITY=""
CONFIG_CRYPTO=y
#
# Crypto core or helper
#
CONFIG_CRYPTO_ALGAPI=y
CONFIG_CRYPTO_ALGAPI2=y
CONFIG_CRYPTO_HASH=y
CONFIG_CRYPTO_HASH2=y
# CONFIG_CRYPTO_RSA is not set
# CONFIG_CRYPTO_DH is not set
# CONFIG_CRYPTO_ECDH is not set
# CONFIG_CRYPTO_MANAGER is not set
# CONFIG_CRYPTO_MANAGER2 is not set
# CONFIG_CRYPTO_USER is not set
# CONFIG_CRYPTO_GF128MUL is not set
# CONFIG_CRYPTO_NULL is not set
# CONFIG_CRYPTO_PCRYPT is not set
# CONFIG_CRYPTO_CRYPTD is not set
# CONFIG_CRYPTO_MCRYPTD is not set
# CONFIG_CRYPTO_AUTHENC is not set
# CONFIG_CRYPTO_TEST is not set
#
# Authenticated Encryption with Associated Data
#
# CONFIG_CRYPTO_CCM is not set
# CONFIG_CRYPTO_GCM is not set
# CONFIG_CRYPTO_CHACHA20POLY1305 is not set
# CONFIG_CRYPTO_SEQIV is not set
# CONFIG_CRYPTO_ECHAINIV is not set
#
# Block modes
#
# CONFIG_CRYPTO_CBC is not set
# CONFIG_CRYPTO_CTR is not set
# CONFIG_CRYPTO_CTS is not set
# CONFIG_CRYPTO_ECB is not set
# CONFIG_CRYPTO_LRW is not set
# CONFIG_CRYPTO_PCBC is not set
# CONFIG_CRYPTO_XTS is not set
# CONFIG_CRYPTO_KEYWRAP is not set
#
# Hash modes
#
# CONFIG_CRYPTO_CMAC is not set
# CONFIG_CRYPTO_HMAC is not set
# CONFIG_CRYPTO_XCBC is not set
# CONFIG_CRYPTO_VMAC is not set
#
# Digest
#
CONFIG_CRYPTO_CRC32C=y
CONFIG_CRYPTO_CRC32C_INTEL=m
# CONFIG_CRYPTO_CRC32 is not set
# CONFIG_CRYPTO_CRC32_PCLMUL is not set
CONFIG_CRYPTO_CRCT10DIF=y
# CONFIG_CRYPTO_GHASH is not set
# CONFIG_CRYPTO_POLY1305 is not set
# CONFIG_CRYPTO_POLY1305_X86_64 is not set
# CONFIG_CRYPTO_MD4 is not set
# CONFIG_CRYPTO_MD5 is not set
# CONFIG_CRYPTO_MICHAEL_MIC is not set
# CONFIG_CRYPTO_RMD128 is not set
# CONFIG_CRYPTO_RMD160 is not set
# CONFIG_CRYPTO_RMD256 is not set
# CONFIG_CRYPTO_RMD320 is not set
# CONFIG_CRYPTO_SHA1 is not set
# CONFIG_CRYPTO_SHA1_SSSE3 is not set
# CONFIG_CRYPTO_SHA256_SSSE3 is not set
# CONFIG_CRYPTO_SHA512_SSSE3 is not set
# CONFIG_CRYPTO_SHA1_MB is not set
# CONFIG_CRYPTO_SHA256_MB is not set
# CONFIG_CRYPTO_SHA512_MB is not set
# CONFIG_CRYPTO_SHA256 is not set
# CONFIG_CRYPTO_SHA512 is not set
# CONFIG_CRYPTO_SHA3 is not set
# CONFIG_CRYPTO_TGR192 is not set
# CONFIG_CRYPTO_WP512 is not set
# CONFIG_CRYPTO_GHASH_CLMUL_NI_INTEL is not set
#
# Ciphers
#
CONFIG_CRYPTO_AES=y
# CONFIG_CRYPTO_AES_X86_64 is not set
# CONFIG_CRYPTO_AES_NI_INTEL is not set
# CONFIG_CRYPTO_ANUBIS is not set
# CONFIG_CRYPTO_ARC4 is not set
# CONFIG_CRYPTO_BLOWFISH is not set
# CONFIG_CRYPTO_BLOWFISH_X86_64 is not set
# CONFIG_CRYPTO_CAMELLIA is not set
# CONFIG_CRYPTO_CAMELLIA_X86_64 is not set
# CONFIG_CRYPTO_CAMELLIA_AESNI_AVX_X86_64 is not set
# CONFIG_CRYPTO_CAMELLIA_AESNI_AVX2_X86_64 is not set
# CONFIG_CRYPTO_CAST5 is not set
# CONFIG_CRYPTO_CAST5_AVX_X86_64 is not set
# CONFIG_CRYPTO_CAST6 is not set
# CONFIG_CRYPTO_CAST6_AVX_X86_64 is not set
# CONFIG_CRYPTO_DES is not set
# CONFIG_CRYPTO_DES3_EDE_X86_64 is not set
# CONFIG_CRYPTO_FCRYPT is not set
# CONFIG_CRYPTO_KHAZAD is not set
# CONFIG_CRYPTO_SALSA20 is not set
# CONFIG_CRYPTO_SALSA20_X86_64 is not set
# CONFIG_CRYPTO_CHACHA20 is not set
# CONFIG_CRYPTO_CHACHA20_X86_64 is not set
# CONFIG_CRYPTO_SEED is not set
# CONFIG_CRYPTO_SERPENT is not set
# CONFIG_CRYPTO_SERPENT_SSE2_X86_64 is not set
# CONFIG_CRYPTO_SERPENT_AVX_X86_64 is not set
# CONFIG_CRYPTO_SERPENT_AVX2_X86_64 is not set
# CONFIG_CRYPTO_TEA is not set
# CONFIG_CRYPTO_TWOFISH is not set
# CONFIG_CRYPTO_TWOFISH_X86_64 is not set
# CONFIG_CRYPTO_TWOFISH_X86_64_3WAY is not set
# CONFIG_CRYPTO_TWOFISH_AVX_X86_64 is not set
#
# Compression
#
# CONFIG_CRYPTO_DEFLATE is not set
CONFIG_CRYPTO_LZO=y
# CONFIG_CRYPTO_842 is not set
CONFIG_CRYPTO_LZ4=m
# CONFIG_CRYPTO_LZ4HC is not set
#
# Random Number Generation
#
# CONFIG_CRYPTO_ANSI_CPRNG is not set
# CONFIG_CRYPTO_DRBG_MENU is not set
# CONFIG_CRYPTO_JITTERENTROPY is not set
# CONFIG_CRYPTO_USER_API_HASH is not set
# CONFIG_CRYPTO_USER_API_SKCIPHER is not set
# CONFIG_CRYPTO_USER_API_RNG is not set
# CONFIG_CRYPTO_USER_API_AEAD is not set
# CONFIG_CRYPTO_HW is not set
#
# Certificates for signature checking
#
CONFIG_HAVE_KVM=y
# CONFIG_VIRTUALIZATION is not set
# CONFIG_BINARY_PRINTF is not set
#
# Library routines
#
CONFIG_BITREVERSE=y
# CONFIG_HAVE_ARCH_BITREVERSE is not set
CONFIG_GENERIC_STRNCPY_FROM_USER=y
CONFIG_GENERIC_STRNLEN_USER=y
CONFIG_GENERIC_NET_UTILS=y
CONFIG_GENERIC_FIND_FIRST_BIT=y
CONFIG_GENERIC_PCI_IOMAP=y
CONFIG_GENERIC_IOMAP=y
CONFIG_GENERIC_IO=y
CONFIG_ARCH_USE_CMPXCHG_LOCKREF=y
CONFIG_ARCH_HAS_FAST_MULTIPLIER=y
# CONFIG_CRC_CCITT is not set
CONFIG_CRC16=y
# CONFIG_CRC_T10DIF is not set
# CONFIG_CRC_ITU_T is not set
CONFIG_CRC32=y
# CONFIG_CRC32_SELFTEST is not set
CONFIG_CRC32_SLICEBY8=y
# CONFIG_CRC32_SLICEBY4 is not set
# CONFIG_CRC32_SARWATE is not set
# CONFIG_CRC32_BIT is not set
# CONFIG_CRC7 is not set
# CONFIG_LIBCRC32C is not set
# CONFIG_CRC8 is not set
# CONFIG_CRC64_ECMA is not set
# CONFIG_AUDIT_ARCH_COMPAT_GENERIC is not set
# CONFIG_RANDOM32_SELFTEST is not set
CONFIG_ZLIB_INFLATE=y
CONFIG_LZO_COMPRESS=y
CONFIG_LZO_DECOMPRESS=y
CONFIG_LZ4_COMPRESS=m
CONFIG_LZ4_DECOMPRESS=m
# CONFIG_XZ_DEC is not set
# CONFIG_XZ_DEC_BCJ is not set
CONFIG_DECOMPRESS_GZIP=y
CONFIG_GENERIC_ALLOCATOR=y
CONFIG_RADIX_TREE_MULTIORDER=y
CONFIG_HAS_IOMEM=y
CONFIG_HAS_IOPORT_MAP=y
CONFIG_HAS_DMA=y
CONFIG_CHECK_SIGNATURE=y
CONFIG_CPU_RMAP=y
CONFIG_DQL=y
CONFIG_GLOB=y
# CONFIG_GLOB_SELFTEST is not set
CONFIG_NLATTR=y
# CONFIG_CORDIC is not set
# CONFIG_DDR is not set
# CONFIG_IRQ_POLL is not set
CONFIG_FONT_SUPPORT=y
CONFIG_FONTS=y
# CONFIG_FONT_8x8 is not set
# CONFIG_FONT_8x16 is not set
CONFIG_FONT_6x11=y
# CONFIG_FONT_7x14 is not set
# CONFIG_FONT_PEARL_8x8 is not set
# CONFIG_FONT_ACORN_8x8 is not set
# CONFIG_FONT_MINI_4x6 is not set
# CONFIG_FONT_6x10 is not set
# CONFIG_FONT_SUN8x16 is not set
# CONFIG_FONT_SUN12x22 is not set
# CONFIG_FONT_10x18 is not set
# CONFIG_SG_SPLIT is not set
CONFIG_SG_POOL=y
CONFIG_ARCH_HAS_SG_CHAIN=y
CONFIG_ARCH_HAS_PMEM_API=y
CONFIG_ARCH_HAS_MMIO_FLUSH=y
CONFIG_SBITMAP=y
Minchan Kim
2016-10-04 07:35:42 UTC
Permalink
Hi Sergey,
Hello,
Cc Jens and block-dev,
I'll outline the commit message for Jens and blockdev people, may be
Thanks for Ccing relevant poeple. Even, I didn't know we have block-dev
mailing list.
: zram supports stream-based parallel compression. IOW, it can support
: parallel compression on SMP system only if each cpus has streams.
: For example, assuming 4 CPU system, there are 4 sources for compressing
: in system and each source must be located in each CPUs for full
: parallel compression.
: So, if there is *one* stream in the system, it cannot be compressed
: in parallel although the system supports multiple CPUs. This patch
: aims to overcome such weakness.
: The idea is to use multiple background threads to compress pages
: in idle CPU and foreground just queues BIOs without interrupting
: while other CPUs consumes pages in BIO to compress.
: It means zram begins to support asynchronous writeback to increase
: write bandwidth.
is there any way of addressing this issues? [a silly idea] can we, for
instance, ask the bock layer to split request and put pages into different
queues (assuming that we run in blk-mq mode)? because this looks like a
common issue, and it may be a bit too late to fix it in zram driver.
any thoughts?
Hmm, blk-mq works with request-level, not even bio-level. Right?
If so, I have a concern about that. Zram as swap storage has been worked
with rw_page to avoid bio allocation which was not small and heard from
product people it was great enhancement in very pool memory device.
I didn't follw up at that time but I guess it was due to waiting free
memory from mempool. If blk-rq works with request-level, should we abandon
rw_page approach?
[..]
Post by Minchan Kim
Could you retest the benchmark without direct IO? Instead of dio,
I used fsync_on_close to flush buffered IO.
DIO isn't normal workload compared to buffered IO. The reason I used DIO
for zram benchmark was that it's handy to transfer IO to block layer effectively
and no-noise of page cache.
If we use buffered IO, the result would be fake as dirty page was just
queued in page cache without any flushing.
I think you know already it very well so no need to explan any more. :)
More important thing is current zram is poor for parallel IO.
Let's thing two usecases, zram-swap, zram-fs.
well, that's why we use direct=1 in benchmarks - to test the peformance
of zram; not anything else. but I can run fsync_on_close=1 tests as well
(see later).
Post by Minchan Kim
1) zram-swap
parallel IO can be done only where every CPU have reclaim context.
IOW,
1. kswapd on CPU 0
2. A process direct reclaim on CPU 1
3. process direct reclaim on CPU 2
4. process direct reclaim on CPU 3
I don't think it's usual workload. Most of time, a kswapd and a process
direct reclaim in embedded platform workload. The point is we can not
use full bandwidth.
hm. but we are on an SMP system and at least one process had to start
direct reclaim, which basically increases chances of direct reclaims
from other CPUs, should running processes there request big enough
memory allocations. I really see no reasons to rule this possibility
out.
I didn't rule out the possiblity. It is just one scenario we can use
full-bandwidth. However, there are many scenarios we cannot use
full-bandwidth.

Imagine that a kswapd waked up and a process entered direct relcaim.
The process can get a memory easily with watermark play and go with
the memory but kswapd alone should continue to reclaim memory until high
watermark. It means there is no process in direct reclaim.

Additionally, with your scenario, we can use just 2 CPU for compression
and relies on the luck the hope with 1. other processes in 2. different CPU
will 3. allocate memory soon and VM should reclaim 4. anonymous memory,
not page cache. It needs many assumptions to use full bandwidth.

However, with current approach, we can use full-bandwidth unconditionally
once VM decide to reclaim anonymous memory.
So, I think it's better approach.
Post by Minchan Kim
2) zram-fs
Currently, there is a work per bdi. So, without fsync(and friends),
every IO submit would be done via that work on worker thread.
It means the IO couldn't be parallelized. However, if we use fsync,
it could be parallelized but it depends on the sync granuarity.
For exmaple, if your test application uses fsync directly, the IO
would be done in the CPU context your application running on. So,
if you has 4 test applications, every CPU could be utilized.
However, if you test application doesn't use fsync directly and
parant process calls sync if every test child applications, the
IO could be done 2 CPU context(1 is parent process context and
other is bdi work context).
So, In summary, we were poor for parallel IO workload without
sync or DIO.
but this again looks [to me] like a more general problem which can be
addressed somewhere up the stack. zram is not absolutely silly here - it
just does what it's being asked to do. any block drivers/block device can
suffer from that.
Agree and hope it can work with rw_page, too.
TEST
****
new tests results; same tests, same conditions, same .config.
- BASE zram, fio direct=1
- BASE zram, fio fsync_on_close=1
- NEW zram, fio direct=1
- NEW zram, fio fsync_on_close=1
- new zram is x3 times slower when we do a lot of direct=1 IO
and
- 10% faster when we use buffered IO (fsync_on_close); but not always;
for instance, test execution time is longer (a reproducible behavior)
when the number of jobs equals the number of CPUs - 4.
Hmm, strange. with my own old benchmark, it was great enhancement.
I will spend a time to test with your benchmark and report back with
why. :)

Thanks for the review, Sergey!
Minchan Kim
2016-10-05 02:02:30 UTC
Permalink
Hi Sergey,

On Tue, Oct 04, 2016 at 01:43:14PM +0900, Sergey Senozhatsky wrote:

< snip >
TEST
****
new tests results; same tests, same conditions, same .config.
- BASE zram, fio direct=1
- BASE zram, fio fsync_on_close=1
- NEW zram, fio direct=1
- NEW zram, fio fsync_on_close=1
- new zram is x3 times slower when we do a lot of direct=1 IO
and
- 10% faster when we use buffered IO (fsync_on_close); but not always;
for instance, test execution time is longer (a reproducible behavior)
when the number of jobs equals the number of CPUs - 4.
if flushing is a problem for new zram during direct=1 test, then I would
assume that writing a huge number of small files (creat/write 4k/close)
would probably have same fsync_on_close=1 performance as direct=1.
ENV
===
x86_64 SMP (4 CPUs), "bare zram" 3g, lzo, static compression buffer.
TEST COMMAND
============
ZRAM_SIZE=3G ZRAM_COMP_ALG=lzo LOG_SUFFIX={NEW, OLD} FIO_LOOPS=2 ./zram-fio-test.sh
EXECUTED TESTS
==============
- [seq-read]
- [rand-read]
- [seq-write]
- [rand-write]
- [mixed-seq]
- [mixed-rand]
fio-perf-o-meter.sh test-fio-zram-OLD test-fio-zram-OLD-flush test-fio-zram-NEW test-fio-zram-NEW-flush
Processing test-fio-zram-OLD
Processing test-fio-zram-OLD-flush
Processing test-fio-zram-NEW
Processing test-fio-zram-NEW-flush
BASE BASE NEW NEW
direct=1 fsync_on_close=1 direct=1 fsync_on_close=1
#jobs1
READ: 2345.1MB/s 2177.2MB/s 2373.2MB/s 2185.8MB/s
READ: 1948.2MB/s 1417.7MB/s 1987.7MB/s 1447.4MB/s
WRITE: 1292.7MB/s 1406.1MB/s 275277KB/s 1521.1MB/s
WRITE: 1047.5MB/s 1143.8MB/s 257140KB/s 1202.4MB/s
READ: 429530KB/s 779523KB/s 175450KB/s 782237KB/s
WRITE: 429840KB/s 780084KB/s 175576KB/s 782800KB/s
READ: 414074KB/s 408214KB/s 164091KB/s 383426KB/s
WRITE: 414402KB/s 408539KB/s 164221KB/s 383730KB/s
I tested your benchmark for job 1 on my 4 CPU mahcine with this diff.

Nothing different.

1. just changed ordering of test execution - hope to reduce testing time due to
block population before the first reading or reading just zero pages
2. used sync_on_close instead of direct io
3. Don't use perf to avoid noise
4. echo 0 > /sys/block/zram0/use_aio to test synchronous IO for old behavior

diff --git a/conf/fio-template-static-buffer b/conf/fio-template-static-buffer
index 1a9a473..22ddee8 100644
--- a/conf/fio-template-static-buffer
+++ b/conf/fio-template-static-buffer
@@ -1,7 +1,7 @@
[global]
bs=${BLOCK_SIZE}k
ioengine=sync
-direct=1
+fsync_on_close=1
nrfiles=${NRFILES}
size=${SIZE}
numjobs=${NUMJOBS}
@@ -14,18 +14,18 @@ new_group
group_reporting
threads=1

-[seq-read]
-rw=read
-
-[rand-read]
-rw=randread
-
[seq-write]
rw=write

[rand-write]
rw=randwrite

+[seq-read]
+rw=read
+
+[rand-read]
+rw=randread
+
[mixed-seq]
rw=rw

diff --git a/zram-fio-test.sh b/zram-fio-test.sh
index 39c11b3..ca2d065 100755
--- a/zram-fio-test.sh
+++ b/zram-fio-test.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash


# Sergey Senozhatsky. ***@gmail.com
@@ -37,6 +37,7 @@ function create_zram
echo $ZRAM_COMP_ALG > /sys/block/zram0/comp_algorithm
cat /sys/block/zram0/comp_algorithm

+ echo 0 > /sys/block/zram0/use_aio
echo $ZRAM_SIZE > /sys/block/zram0/disksize
if [ $? != 0 ]; then
return -1
@@ -137,7 +138,7 @@ function main
echo "#jobs$i fio" >> $LOG

BLOCK_SIZE=4 SIZE=100% NUMJOBS=$i NRFILES=$i FIO_LOOPS=$FIO_LOOPS \
- $PERF stat -o $LOG-perf-stat $FIO ./$FIO_TEMPLATE >> $LOG
+ $FIO ./$FIO_TEMPLATE > $LOG

echo -n "perfstat jobs$i" >> $LOG
cat $LOG-perf-stat >> $LOG

And got following result.

1. ZRAM_SIZE=3G ZRAM_COMP_ALG=lzo LOG_SUFFIX=async FIO_LOOPS=2 MAX_ITER=1 ./zram-fio-test.sh
2. modify script to disable aio via /sys/block/zram0/use_aio
ZRAM_SIZE=3G ZRAM_COMP_ALG=lzo LOG_SUFFIX=sync FIO_LOOPS=2 MAX_ITER=1 ./zram-fio-test.sh

seq-write 380930 474325 124.52%
rand-write 286183 357469 124.91%
seq-read 266813 265731 99.59%
rand-read 211747 210670 99.49%
mixed-seq(R) 145750 171232 117.48%
mixed-seq(W) 145736 171215 117.48%
mixed-rand(R) 115355 125239 108.57%
mixed-rand(W) 115371 125256 108.57%

LZO compression is fast and a CPU for queueing while 3 CPU for compressing
it cannot saturate CPU full bandwidth. Nonetheless, it shows 24% enhancement.
It could be more in slow CPU like embedded.

I tested it with deflate. The result is 300% enhancement.

seq-write 33598 109882 327.05%
rand-write 32815 102293 311.73%
seq-read 154323 153765 99.64%
rand-read 129978 129241 99.43%
mixed-seq(R) 15887 44995 283.22%
mixed-seq(W) 15885 44990 283.22%
mixed-rand(R) 25074 55491 221.31%
mixed-rand(W) 25078 55499 221.31%

So, curious with your test.
Am my test sync with yours? If you cannot see enhancment in job1, could
you test with deflate? It seems your CPU is really fast.
Sergey Senozhatsky
2016-10-06 08:29:57 UTC
Permalink
Hello Minchan,

On (10/05/16 11:01), Minchan Kim wrote:
[..]
Post by Minchan Kim
1. just changed ordering of test execution - hope to reduce testing time due to
block population before the first reading or reading just zero pages
2. used sync_on_close instead of direct io
3. Don't use perf to avoid noise
4. echo 0 > /sys/block/zram0/use_aio to test synchronous IO for old behavior
ok, will use it in the tests below.
Post by Minchan Kim
1. ZRAM_SIZE=3G ZRAM_COMP_ALG=lzo LOG_SUFFIX=async FIO_LOOPS=2 MAX_ITER=1 ./zram-fio-test.sh
2. modify script to disable aio via /sys/block/zram0/use_aio
ZRAM_SIZE=3G ZRAM_COMP_ALG=lzo LOG_SUFFIX=sync FIO_LOOPS=2 MAX_ITER=1 ./zram-fio-test.sh
seq-write 380930 474325 124.52%
rand-write 286183 357469 124.91%
seq-read 266813 265731 99.59%
rand-read 211747 210670 99.49%
mixed-seq(R) 145750 171232 117.48%
mixed-seq(W) 145736 171215 117.48%
mixed-rand(R) 115355 125239 108.57%
mixed-rand(W) 115371 125256 108.57%
no_aio use_aio

WRITE: 1432.9MB/s 1511.5MB/s
WRITE: 1173.9MB/s 1186.9MB/s
READ: 912699KB/s 912170KB/s
WRITE: 912497KB/s 911968KB/s
READ: 725658KB/s 726747KB/s
READ: 579003KB/s 594543KB/s
READ: 373276KB/s 373719KB/s
WRITE: 373572KB/s 374016KB/s

seconds elapsed 45.399702511 44.280199716
Post by Minchan Kim
LZO compression is fast and a CPU for queueing while 3 CPU for compressing
it cannot saturate CPU full bandwidth. Nonetheless, it shows 24% enhancement.
It could be more in slow CPU like embedded.
I tested it with deflate. The result is 300% enhancement.
seq-write 33598 109882 327.05%
rand-write 32815 102293 311.73%
seq-read 154323 153765 99.64%
rand-read 129978 129241 99.43%
mixed-seq(R) 15887 44995 283.22%
mixed-seq(W) 15885 44990 283.22%
mixed-rand(R) 25074 55491 221.31%
mixed-rand(W) 25078 55499 221.31%
So, curious with your test.
Am my test sync with yours? If you cannot see enhancment in job1, could
you test with deflate? It seems your CPU is really fast.
interesting observation.

no_aio use_aio
WRITE: 47882KB/s 158931KB/s
WRITE: 47714KB/s 156484KB/s
READ: 42914KB/s 137997KB/s
WRITE: 42904KB/s 137967KB/s
READ: 333764KB/s 332828KB/s
READ: 293883KB/s 294709KB/s
READ: 51243KB/s 129701KB/s
WRITE: 51284KB/s 129804KB/s

seconds elapsed 480.869169882 181.678431855

yes, looks like with lzo CPU manages to process bdi writeback fast enough
to keep fio-template-static-buffer worker active.

to prove this theory: direct=1 cures zram-deflate.

no_aio use_aio
WRITE: 41873KB/s 34257KB/s
WRITE: 41455KB/s 34087KB/s
READ: 36705KB/s 28960KB/s
WRITE: 36697KB/s 28954KB/s
READ: 327902KB/s 327270KB/s
READ: 316217KB/s 316886KB/s
READ: 35980KB/s 28131KB/s
WRITE: 36008KB/s 28153KB/s

seconds elapsed 515.575252170 629.114626795



as soon as wb flush kworker can't keep up anymore things are going off
the rails. most of the time, fio-template-static-buffer are in D state,
while the biggest bdi flush kworker is doing the job (a lot of job):

PID USER PR NI VIRT RES %CPU %MEM TIME+ S COMMAND
6274 root 20 0 0.0m 0.0m 100.0 0.0 1:15.60 R [kworker/u8:1]
11169 root 20 0 718.1m 1.6m 16.6 0.0 0:01.88 D fio ././conf/fio-template-static-buffer
11171 root 20 0 718.1m 1.6m 3.3 0.0 0:01.15 D fio ././conf/fio-template-static-buffer
11170 root 20 0 718.1m 3.3m 2.6 0.1 0:00.98 D fio ././conf/fio-template-static-buffer


and still working...

6274 root 20 0 0.0m 0.0m 100.0 0.0 3:05.49 R [kworker/u8:1]
12048 root 20 0 718.1m 1.6m 16.7 0.0 0:01.80 R fio ././conf/fio-template-static-buffer
12047 root 20 0 718.1m 1.6m 3.3 0.0 0:01.12 D fio ././conf/fio-template-static-buffer
12049 root 20 0 718.1m 1.6m 3.3 0.0 0:01.12 D fio ././conf/fio-template-static-buffer
12050 root 20 0 718.1m 1.6m 2.0 0.0 0:00.98 D fio ././conf/fio-template-static-buffer

and working...


[ 4159.338731] CPU: 0 PID: 105 Comm: kworker/u8:4
[ 4159.338734] Workqueue: writeback wb_workfn (flush-254:0)
[ 4159.338746] [<ffffffffa01d8cff>] zram_make_request+0x4a3/0x67b [zram]
[ 4159.338748] [<ffffffff810543fe>] ? try_to_wake_up+0x201/0x213
[ 4159.338750] [<ffffffff810ae9d3>] ? mempool_alloc+0x5e/0x124
[ 4159.338752] [<ffffffff811a9922>] generic_make_request+0xb8/0x156
[ 4159.338753] [<ffffffff811a9aaf>] submit_bio+0xef/0xf8
[ 4159.338755] [<ffffffff81121a97>] submit_bh_wbc.isra.10+0x16b/0x178
[ 4159.338757] [<ffffffff811223ec>] __block_write_full_page+0x1b2/0x2a6
[ 4159.338758] [<ffffffff8112403e>] ? bh_submit_read+0x5a/0x5a
[ 4159.338760] [<ffffffff81120f9a>] ? end_buffer_write_sync+0x36/0x36
[ 4159.338761] [<ffffffff8112403e>] ? bh_submit_read+0x5a/0x5a
[ 4159.338763] [<ffffffff811226d8>] block_write_full_page+0xf6/0xff
[ 4159.338765] [<ffffffff81124342>] blkdev_writepage+0x13/0x15
[ 4159.338767] [<ffffffff810b498c>] __writepage+0xe/0x26
[ 4159.338768] [<ffffffff810b65aa>] write_cache_pages+0x28c/0x376
[ 4159.338770] [<ffffffff810b497e>] ? __wb_calc_thresh+0x83/0x83
[ 4159.338772] [<ffffffff810b66dc>] generic_writepages+0x48/0x67
[ 4159.338773] [<ffffffff81124318>] blkdev_writepages+0x9/0xb
[ 4159.338775] [<ffffffff81124318>] ? blkdev_writepages+0x9/0xb
[ 4159.338776] [<ffffffff810b6716>] do_writepages+0x1b/0x24
[ 4159.338778] [<ffffffff8111b12c>] __writeback_single_inode+0x3d/0x155
[ 4159.338779] [<ffffffff8111b407>] writeback_sb_inodes+0x1c3/0x32c
[ 4159.338781] [<ffffffff8111b5e1>] __writeback_inodes_wb+0x71/0xa9
[ 4159.338783] [<ffffffff8111b7ce>] wb_writeback+0x10f/0x1a1
[ 4159.338785] [<ffffffff8111be32>] wb_workfn+0x1c9/0x24c
[ 4159.338786] [<ffffffff8111be32>] ? wb_workfn+0x1c9/0x24c
[ 4159.338788] [<ffffffff8104a2e2>] process_one_work+0x1a4/0x2a7
[ 4159.338790] [<ffffffff8104ae32>] worker_thread+0x23b/0x37c
[ 4159.338792] [<ffffffff8104abf7>] ? rescuer_thread+0x2eb/0x2eb
[ 4159.338793] [<ffffffff8104f285>] kthread+0xce/0xd6
[ 4159.338794] [<ffffffff8104f1b7>] ? kthread_create_on_node+0x1ad/0x1ad
[ 4159.338796] [<ffffffff8145ad12>] ret_from_fork+0x22/0x30


so the question is -- can we move this parallelization out of zram
and instead flush bdi in more than one kthread? how bad that would
be? can anyone else benefit from this?



[1] https://lwn.net/Articles/353844/
[2] https://lwn.net/Articles/354852/

-ss
Minchan Kim
2016-10-07 06:33:36 UTC
Permalink
Hi Sergey,
Post by Sergey Senozhatsky
Hello Minchan,
[..]
Post by Minchan Kim
1. just changed ordering of test execution - hope to reduce testing time due to
block population before the first reading or reading just zero pages
2. used sync_on_close instead of direct io
3. Don't use perf to avoid noise
4. echo 0 > /sys/block/zram0/use_aio to test synchronous IO for old behavior
ok, will use it in the tests below.
Post by Minchan Kim
1. ZRAM_SIZE=3G ZRAM_COMP_ALG=lzo LOG_SUFFIX=async FIO_LOOPS=2 MAX_ITER=1 ./zram-fio-test.sh
2. modify script to disable aio via /sys/block/zram0/use_aio
ZRAM_SIZE=3G ZRAM_COMP_ALG=lzo LOG_SUFFIX=sync FIO_LOOPS=2 MAX_ITER=1 ./zram-fio-test.sh
seq-write 380930 474325 124.52%
rand-write 286183 357469 124.91%
seq-read 266813 265731 99.59%
rand-read 211747 210670 99.49%
mixed-seq(R) 145750 171232 117.48%
mixed-seq(W) 145736 171215 117.48%
mixed-rand(R) 115355 125239 108.57%
mixed-rand(W) 115371 125256 108.57%
no_aio use_aio
WRITE: 1432.9MB/s 1511.5MB/s
WRITE: 1173.9MB/s 1186.9MB/s
READ: 912699KB/s 912170KB/s
WRITE: 912497KB/s 911968KB/s
READ: 725658KB/s 726747KB/s
READ: 579003KB/s 594543KB/s
READ: 373276KB/s 373719KB/s
WRITE: 373572KB/s 374016KB/s
seconds elapsed 45.399702511 44.280199716
Post by Minchan Kim
LZO compression is fast and a CPU for queueing while 3 CPU for compressing
it cannot saturate CPU full bandwidth. Nonetheless, it shows 24% enhancement.
It could be more in slow CPU like embedded.
I tested it with deflate. The result is 300% enhancement.
seq-write 33598 109882 327.05%
rand-write 32815 102293 311.73%
seq-read 154323 153765 99.64%
rand-read 129978 129241 99.43%
mixed-seq(R) 15887 44995 283.22%
mixed-seq(W) 15885 44990 283.22%
mixed-rand(R) 25074 55491 221.31%
mixed-rand(W) 25078 55499 221.31%
So, curious with your test.
Am my test sync with yours? If you cannot see enhancment in job1, could
you test with deflate? It seems your CPU is really fast.
interesting observation.
no_aio use_aio
WRITE: 47882KB/s 158931KB/s
WRITE: 47714KB/s 156484KB/s
READ: 42914KB/s 137997KB/s
WRITE: 42904KB/s 137967KB/s
READ: 333764KB/s 332828KB/s
READ: 293883KB/s 294709KB/s
READ: 51243KB/s 129701KB/s
WRITE: 51284KB/s 129804KB/s
seconds elapsed 480.869169882 181.678431855
yes, looks like with lzo CPU manages to process bdi writeback fast enough
to keep fio-template-static-buffer worker active.
to prove this theory: direct=1 cures zram-deflate.
no_aio use_aio
WRITE: 41873KB/s 34257KB/s
WRITE: 41455KB/s 34087KB/s
READ: 36705KB/s 28960KB/s
WRITE: 36697KB/s 28954KB/s
READ: 327902KB/s 327270KB/s
READ: 316217KB/s 316886KB/s
READ: 35980KB/s 28131KB/s
WRITE: 36008KB/s 28153KB/s
seconds elapsed 515.575252170 629.114626795
as soon as wb flush kworker can't keep up anymore things are going off
the rails. most of the time, fio-template-static-buffer are in D state,
PID USER PR NI VIRT RES %CPU %MEM TIME+ S COMMAND
6274 root 20 0 0.0m 0.0m 100.0 0.0 1:15.60 R [kworker/u8:1]
11169 root 20 0 718.1m 1.6m 16.6 0.0 0:01.88 D fio ././conf/fio-template-static-buffer
11171 root 20 0 718.1m 1.6m 3.3 0.0 0:01.15 D fio ././conf/fio-template-static-buffer
11170 root 20 0 718.1m 3.3m 2.6 0.1 0:00.98 D fio ././conf/fio-template-static-buffer
and still working...
6274 root 20 0 0.0m 0.0m 100.0 0.0 3:05.49 R [kworker/u8:1]
12048 root 20 0 718.1m 1.6m 16.7 0.0 0:01.80 R fio ././conf/fio-template-static-buffer
12047 root 20 0 718.1m 1.6m 3.3 0.0 0:01.12 D fio ././conf/fio-template-static-buffer
12049 root 20 0 718.1m 1.6m 3.3 0.0 0:01.12 D fio ././conf/fio-template-static-buffer
12050 root 20 0 718.1m 1.6m 2.0 0.0 0:00.98 D fio ././conf/fio-template-static-buffer
and working...
[ 4159.338731] CPU: 0 PID: 105 Comm: kworker/u8:4
[ 4159.338734] Workqueue: writeback wb_workfn (flush-254:0)
[ 4159.338746] [<ffffffffa01d8cff>] zram_make_request+0x4a3/0x67b [zram]
[ 4159.338748] [<ffffffff810543fe>] ? try_to_wake_up+0x201/0x213
[ 4159.338750] [<ffffffff810ae9d3>] ? mempool_alloc+0x5e/0x124
[ 4159.338752] [<ffffffff811a9922>] generic_make_request+0xb8/0x156
[ 4159.338753] [<ffffffff811a9aaf>] submit_bio+0xef/0xf8
[ 4159.338755] [<ffffffff81121a97>] submit_bh_wbc.isra.10+0x16b/0x178
[ 4159.338757] [<ffffffff811223ec>] __block_write_full_page+0x1b2/0x2a6
[ 4159.338758] [<ffffffff8112403e>] ? bh_submit_read+0x5a/0x5a
[ 4159.338760] [<ffffffff81120f9a>] ? end_buffer_write_sync+0x36/0x36
[ 4159.338761] [<ffffffff8112403e>] ? bh_submit_read+0x5a/0x5a
[ 4159.338763] [<ffffffff811226d8>] block_write_full_page+0xf6/0xff
[ 4159.338765] [<ffffffff81124342>] blkdev_writepage+0x13/0x15
[ 4159.338767] [<ffffffff810b498c>] __writepage+0xe/0x26
[ 4159.338768] [<ffffffff810b65aa>] write_cache_pages+0x28c/0x376
[ 4159.338770] [<ffffffff810b497e>] ? __wb_calc_thresh+0x83/0x83
[ 4159.338772] [<ffffffff810b66dc>] generic_writepages+0x48/0x67
[ 4159.338773] [<ffffffff81124318>] blkdev_writepages+0x9/0xb
[ 4159.338775] [<ffffffff81124318>] ? blkdev_writepages+0x9/0xb
[ 4159.338776] [<ffffffff810b6716>] do_writepages+0x1b/0x24
[ 4159.338778] [<ffffffff8111b12c>] __writeback_single_inode+0x3d/0x155
[ 4159.338779] [<ffffffff8111b407>] writeback_sb_inodes+0x1c3/0x32c
[ 4159.338781] [<ffffffff8111b5e1>] __writeback_inodes_wb+0x71/0xa9
[ 4159.338783] [<ffffffff8111b7ce>] wb_writeback+0x10f/0x1a1
[ 4159.338785] [<ffffffff8111be32>] wb_workfn+0x1c9/0x24c
[ 4159.338786] [<ffffffff8111be32>] ? wb_workfn+0x1c9/0x24c
[ 4159.338788] [<ffffffff8104a2e2>] process_one_work+0x1a4/0x2a7
[ 4159.338790] [<ffffffff8104ae32>] worker_thread+0x23b/0x37c
[ 4159.338792] [<ffffffff8104abf7>] ? rescuer_thread+0x2eb/0x2eb
[ 4159.338793] [<ffffffff8104f285>] kthread+0xce/0xd6
[ 4159.338794] [<ffffffff8104f1b7>] ? kthread_create_on_node+0x1ad/0x1ad
[ 4159.338796] [<ffffffff8145ad12>] ret_from_fork+0x22/0x30
so the question is -- can we move this parallelization out of zram
and instead flush bdi in more than one kthread? how bad that would
be? can anyone else benefit from this?
Isn't it blk-mq you mentioned? With blk-mq, I have some concerns.

1. read speed degradation
2. no work with rw_page
3. more memory footprint by bio/request queue allocation

Having said, it's worth to look into it in detail more.
I will have time to see that approach to know what I can do
with that.

Thanks!
Post by Sergey Senozhatsky
[1] https://lwn.net/Articles/353844/
[2] https://lwn.net/Articles/354852/
-ss
Sergey Senozhatsky
2016-10-10 00:33:07 UTC
Permalink
Hello Minchan,

On (10/07/16 15:33), Minchan Kim wrote:
[..]
Post by Minchan Kim
Post by Sergey Senozhatsky
as soon as wb flush kworker can't keep up anymore things are going off
the rails. most of the time, fio-template-static-buffer are in D state,
PID USER PR NI VIRT RES %CPU %MEM TIME+ S COMMAND
6274 root 20 0 0.0m 0.0m 100.0 0.0 1:15.60 R [kworker/u8:1]
11169 root 20 0 718.1m 1.6m 16.6 0.0 0:01.88 D fio ././conf/fio-template-static-buffer
11171 root 20 0 718.1m 1.6m 3.3 0.0 0:01.15 D fio ././conf/fio-template-static-buffer
11170 root 20 0 718.1m 3.3m 2.6 0.1 0:00.98 D fio ././conf/fio-template-static-buffer
and still working...
6274 root 20 0 0.0m 0.0m 100.0 0.0 3:05.49 R [kworker/u8:1]
12048 root 20 0 718.1m 1.6m 16.7 0.0 0:01.80 R fio ././conf/fio-template-static-buffer
12047 root 20 0 718.1m 1.6m 3.3 0.0 0:01.12 D fio ././conf/fio-template-static-buffer
12049 root 20 0 718.1m 1.6m 3.3 0.0 0:01.12 D fio ././conf/fio-template-static-buffer
12050 root 20 0 718.1m 1.6m 2.0 0.0 0:00.98 D fio ././conf/fio-template-static-buffer
and working...
[..]
Post by Minchan Kim
Isn't it blk-mq you mentioned? With blk-mq, I have some concerns.
1. read speed degradation
2. no work with rw_page
3. more memory footprint by bio/request queue allocation
yes, I did. and I've seen your concerns in another email - I
just don't have enough knowledge at the moment to say something
not entirely stupid. gotta look more at the whole thing.
Post by Minchan Kim
Having said, it's worth to look into it in detail more.
I will have time to see that approach to know what I can do
with that.
thanks a lot!
will keep looking as well.

-ss

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