[lkp] [f2fs] 60b99b486b: +1.9% fileio.requests_per_sec

[kernel test robot]

FYI, we noticed the below changes on

https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
commit 60b99b486b568c13cbb7caa83cf8a12af7665f1e ("f2fs: introduce a periodic checkpoint flow")


=========================================================================================
tbox_group/testcase/rootfs/kconfig/compiler/period/nr_threads/disk/fs/size/filenum/rwmode/iomode:
  lkp-ws02/fileio/debian-x86_64-2015-02-07.cgz/x86_64-rhel/gcc-4.9/600s/100%/1HDD/f2fs/64G/1024f/seqrewr/sync

commit: 
  5c2674347466d5c2d5169214e95f4ad6dc09e9b6
  60b99b486b568c13cbb7caa83cf8a12af7665f1e

5c2674347466d5c2 60b99b486b568c13cbb7caa83c 
---------------- -------------------------- 
         %stddev     %change         %stddev
             \          |                \  
      1111 ±  8%    +279.7%       4219 ± 23%  fileio.request_latency_max_ms
      5656 ±  0%      +1.9%       5764 ±  0%  fileio.requests_per_sec
 1.088e+08 ±  0%      +1.9%  1.108e+08 ±  0%  fileio.time.file_system_outputs
     46225 ±  0%      +4.9%      48473 ±  0%  fileio.time.involuntary_context_switches
      3759 ±  0%      +2.6%       3858 ±  1%  fileio.time.maximum_resident_set_size
     47.00 ± 92%    +163.8%     124.00 ±  8%  numa-vmstat.node0.workingset_refault
     37306 ±  2%     -10.6%      33365 ±  1%  softirqs.BLOCK
    328.00 ±  0%     +55.5%     510.00 ±  1%  time.file_system_inputs
     79132 ± 17%     +30.7%     103393 ±  2%  numa-meminfo.node0.Active
    122897 ± 10%     -20.4%      97780 ±  2%  numa-meminfo.node1.Active
      1.45 ±  1%      +3.3%       1.50 ±  1%  turbostat.%Busy
      0.40 ± 13%     +76.1%       0.70 ± 19%  turbostat.Pkg%pc3
      0.12 ± 15%    +638.8%       0.91 ± 16%  turbostat.Pkg%pc6
     83662 ±  0%      +1.9%      85235 ±  0%  vmstat.io.bo
    626.00 ±  5%     +23.0%     770.25 ±  8%  vmstat.memory.buff
      9980 ±  1%      +2.6%      10241 ±  1%  vmstat.system.cs
 2.012e+08 ± 11%     +25.0%  2.514e+08 ±  8%  cpuidle.C1E-NHM.time
     52329 ± 11%     -23.6%      39994 ± 12%  cpuidle.C3-NHM.usage
      5227 ± 29%    +413.0%      26816 ±114%  cpuidle.POLL.time
    336.25 ± 33%     +82.5%     613.50 ±  6%  cpuidle.POLL.usage
      2648 ±  5%     -13.8%       2283 ±  2%  proc-vmstat.kswapd_high_wmark_hit_quickly
      3872 ±  1%     +12.6%       4361 ±  3%  proc-vmstat.kswapd_low_wmark_hit_quickly
      1072 ± 29%     +30.1%       1395 ± 16%  proc-vmstat.pgpgin
      9856 ± 11%    +350.3%      44384 ±  3%  proc-vmstat.slabs_scanned
      3364 ±  2%     -20.9%       2660 ±  2%  slabinfo.f2fs_extent_tree.active_objs
      3364 ±  2%     -20.9%       2660 ±  2%  slabinfo.f2fs_extent_tree.num_objs
     19645 ±  0%      +9.8%      21579 ±  4%  slabinfo.jbd2_revoke_record_s.num_objs
      3165 ±  4%      -8.7%       2891 ±  8%  slabinfo.proc_inode_cache.num_objs
      0.00 ± -1%      +Inf%    1774752 ±  7%  latency_stats.avg.call_rwsem_down_read_failed.f2fs_convert_inline_inode.[f2fs].f2fs_write_begin.[f2fs].generic_perform_write.__generic_file_write_iter.generic_file_write_iter.f2fs_file_write_iter.[f2fs].__vfs_write.vfs_write.SyS_pwrite64.entry_SYSCALL_64_fastpath
      0.00 ± -1%      +Inf%    1804979 ± 68%  latency_stats.avg.get_request.blk_queue_bio.generic_make_request.submit_bio.f2fs_submit_page_bio.[f2fs].get_meta_page.[f2fs].get_node_info.[f2fs].read_node_page.[f2fs].get_node_page.[f2fs].get_dnode_of_data.[f2fs].f2fs_reserve_block.[f2fs].f2fs_get_block.[f2fs]
      0.00 ± -1%      +Inf%    3191014 ±  6%  latency_stats.max.call_rwsem_down_read_failed.f2fs_convert_inline_inode.[f2fs].f2fs_write_begin.[f2fs].generic_perform_write.__generic_file_write_iter.generic_file_write_iter.f2fs_file_write_iter.[f2fs].__vfs_write.vfs_write.SyS_pwrite64.entry_SYSCALL_64_fastpath
   1043277 ±  6%    +294.7%    4118293 ± 23%  latency_stats.max.generic_file_write_iter.f2fs_file_write_iter.[f2fs].__vfs_write.vfs_write.SyS_pwrite64.entry_SYSCALL_64_fastpath
      0.00 ± -1%      +Inf%    1804979 ± 68%  latency_stats.max.get_request.blk_queue_bio.generic_make_request.submit_bio.f2fs_submit_page_bio.[f2fs].get_meta_page.[f2fs].get_node_info.[f2fs].read_node_page.[f2fs].get_node_page.[f2fs].get_dnode_of_data.[f2fs].f2fs_reserve_block.[f2fs].f2fs_get_block.[f2fs]
     16549 ± 50%    +248.8%      57724 ±145%  latency_stats.max.rpc_wait_bit_killable.__rpc_wait_for_completion_task.nfs4_run_open_task.[nfsv4]._nfs4_open_and_get_state.[nfsv4].nfs4_do_open.[nfsv4].nfs4_atomic_open.[nfsv4].nfs4_file_open.[nfsv4].do_dentry_open.vfs_open.path_openat.do_filp_open.do_sys_open
      0.00 ± -1%      +Inf%   16400627 ±  7%  latency_stats.sum.call_rwsem_down_read_failed.f2fs_convert_inline_inode.[f2fs].f2fs_write_begin.[f2fs].generic_perform_write.__generic_file_write_iter.generic_file_write_iter.f2fs_file_write_iter.[f2fs].__vfs_write.vfs_write.SyS_pwrite64.entry_SYSCALL_64_fastpath
      0.00 ± -1%      +Inf%    1804979 ± 68%  latency_stats.sum.get_request.blk_queue_bio.generic_make_request.submit_bio.f2fs_submit_page_bio.[f2fs].get_meta_page.[f2fs].get_node_info.[f2fs].read_node_page.[f2fs].get_node_page.[f2fs].get_dnode_of_data.[f2fs].f2fs_reserve_block.[f2fs].f2fs_get_block.[f2fs]
   -102455 ±-26%     +43.5%    -147067 ±-18%  sched_debug.cfs_rq[14]:/.spread0
      4.25 ± 42%    +152.9%      10.75 ± 30%  sched_debug.cfs_rq[15]:/.util_avg
     49880 ± 10%     -75.7%      12114 ± 81%  sched_debug.cfs_rq[4]:/.spread0
     47475 ± 29%     -64.6%      16798 ± 70%  sched_debug.cfs_rq[5]:/.spread0
      4.75 ±  9%    +157.9%      12.25 ± 65%  sched_debug.cfs_rq[6]:/.load_avg
      5.00 ± 14%    +165.0%      13.25 ± 58%  sched_debug.cfs_rq[6]:/.tg_load_avg_contrib
    -86.50 ±-72%    +177.5%    -240.00 ± -8%  sched_debug.cpu#1.nr_uninterruptible
     -3.00 ±-212%    -525.0%      12.75 ±115%  sched_debug.cpu#11.nr_uninterruptible
      2.75 ±211%   +1154.5%      34.50 ±  9%  sched_debug.cpu#15.nr_uninterruptible
      4.50 ±163%    +583.3%      30.75 ± 25%  sched_debug.cpu#18.nr_uninterruptible
     10.25 ±136%    +234.1%      34.25 ± 43%  sched_debug.cpu#19.nr_uninterruptible
      4.75 ±399%    +636.8%      35.00 ± 46%  sched_debug.cpu#2.nr_uninterruptible
      6.75 ±174%    +259.3%      24.25 ± 39%  sched_debug.cpu#22.nr_uninterruptible
    921417 ±  7%     -10.1%     828517 ±  7%  sched_debug.cpu#5.avg_idle
     14.00 ± 25%     +98.2%      27.75 ± 29%  sched_debug.cpu#7.nr_uninterruptible


lkp-ws02: Westmere-EP
Memory: 16G



                              fileio.requests_per_sec

  5860 ++-------------------------------------------------------------------+
  5840 ++ O                      O                                          |
       O     O  O  O O     O  O     O  O  O    O  O  O  O  O  O  O          |
  5820 ++               O                   O                               |
  5800 ++                                                                   |
  5780 ++                                                                   |
  5760 ++                                                          O  O  O  |
       |                                                                    O
  5740 ++                                                                   |
  5720 ++                                                                   |
  5700 ++                                                                   |
  5680 ++                                                                   |
       | .*..*..                         .*.     .*..*..                   .*
  5660 *+       *..*.*..*..*..*..  .*..*.   *..*.       *..*..*..*.*..*..*. |
  5640 ++------------------------*------------------------------------------+


                             fileio.time.file_system_outputs

  1.125e+08 ++--------------------------------------------------------------+
            O  O O                  O       O       O  O                    |
   1.12e+08 ++      O  O O  O  O O     O O     O O       O  O  O O          |
  1.115e+08 ++                                                              |
            |                                                               |
   1.11e+08 ++                                                         O    |
            |                                                       O    O  O
  1.105e+08 ++                                                              |
            |                                                               |
    1.1e+08 ++                                                              |
  1.095e+08 ++                                                              |
            |                                                               |
   1.09e+08 ++.*.*..                       .*..    .*..*.                   |
            *.      *..*.*..*..*.*..    .*.    *.*.      *..*..*.*..*..*.*..*
  1.085e+08 ++----------------------*--*------------------------------------+


                              time.file_system_inputs

  520 O+----O--------O--O-------------------O--O----------------------O-----+
  500 ++ O     O  O          O  O  O  O  O        O     O  O O  O  O        O
      |                   O                          O                   O  |
  480 ++                                                                    |
  460 ++                                                                    |
      |                                                                     |
  440 ++                                                                    |
  420 ++                                                                    |
  400 ++                                                                    |
      |                                                                     |
  380 ++                                                                    |
  360 ++                                                                    |
      |                                                                     |
  340 *+.*..*..*..*..*..*.*..*..*..*..*..*..*..*..*..*..*..*.*..*..*..*..*..*
  320 ++--------------------------------------------------------------------+


                                    vmstat.io.bo

  86500 ++------------------------------------------------------------------+
        O  O  O  O O  O  O  O     O O  O  O  O  O  O O  O     O             |
  86000 ++                     O                           O     O          |
        |                                                                   |
  85500 ++                                                                  |
        |                                                           O O  O  O
  85000 ++                                                                  |
        |                                                                   |
  84500 ++                                                                  |
        |                                                                   |
  84000 ++                                                                  |
        *..*..                           .*..*..*.. .*..        .*..*.*..*..*
  83500 ++    *..*.*..*..  .*..  .*.*..*.          *    *..*..*.            |
        |                *.    *.                                           |
  83000 ++------------------------------------------------------------------+


                              proc-vmstat.slabs_scanned

  50000 ++------------------------------------------------------------------+
        |     O       O     O             O  O  O    O                O     O
  45000 O+ O     O O     O     O  O O  O                O  O  O  O  O    O  |
  40000 ++                                         O                        |
        |                                                                   |
  35000 ++                                                                  |
  30000 ++                                                                  |
        | .*..*.. .*..*..*..  .*..*.     .*                                 |
  25000 *+       *          *.      *..*.  :                                |
  20000 ++                                 :                                |
        |                                   :                               |
  15000 ++                                  :                               |
  10000 ++                                   :    .*      .*..          .*..|
        |                                    *..*.  +  .*.      .*..*.*.    *
   5000 ++-------------------------------------------*--------*-------------+
	[*] bisect-good sample
	[O] bisect-bad  sample

To reproduce:

        git clone git://git.kernel.org/pub/scm/linux/kernel/git/wfg/lkp-tests.git
        cd lkp-tests
        bin/lkp install job.yaml  # job file is attached in this email
        bin/lkp run     job.yaml


Disclaimer:
Results have been estimated based on internal Intel analysis and are provided
for informational purposes only. Any difference in system hardware or software
design or configuration may affect actual performance.


Thanks,
Ying Huang
---
LKP_SERVER: inn
LKP_CGI_PORT: 80
LKP_CIFS_PORT: 139
testcase: fileio
default-monitors:
  wait: activate-monitor
  kmsg: 
  uptime: 
  iostat: 
  vmstat: 
  numa-numastat: 
  numa-vmstat: 
  numa-meminfo: 
  proc-vmstat: 
  proc-stat:
    interval: 10
  meminfo: 
  slabinfo: 
  interrupts: 
  lock_stat: 
  latency_stats: 
  softirqs: 
  bdi_dev_mapping: 
  diskstats: 
  nfsstat: 
  cpuidle: 
  cpufreq-stats: 
  turbostat: 
  pmeter: 
  sched_debug:
    interval: 60
cpufreq_governor: 
default-watchdogs:
  oom-killer: 
  watchdog: 
commit: 33033a10ecaf8b27aee8dc2d3ffed1aa022ecb6d
model: Westmere-EP
memory: 16G
nr_hdd_partitions: 11
hdd_partitions: "/dev/disk/by-id/scsi-35000c500*-part1"
swap_partitions: 
rootfs_partition: "/dev/disk/by-id/ata-WDC_WD1002FAEX-00Z3A0_WD-WCATR5408564-part3"
category: benchmark
period: 600s
nr_threads: 100%
disk: 1HDD
fs: f2fs
size: 64G
fileio:
  filenum: 1024f
  rwmode: seqrewr
  iomode: sync
queue: cyclic
testbox: lkp-ws02
tbox_group: lkp-ws02
kconfig: x86_64-rhel
enqueue_time: 2015-10-30 17:52:45.410072749 +08:00
id: 9267ec2edfc3d4a915af562ff22cabb085646279
user: lkp
compiler: gcc-4.9
head_commit: 33033a10ecaf8b27aee8dc2d3ffed1aa022ecb6d
base_commit: 32b88194f71d6ae7768a29f87fbba454728273ee
branch: linux-devel/devel-hourly-2015110200
kernel: "/pkg/linux/x86_64-rhel/gcc-4.9/33033a10ecaf8b27aee8dc2d3ffed1aa022ecb6d/vmlinuz-4.3.0-rc7-virtio-gpu-08131-g33033a1"
rootfs: debian-x86_64-2015-02-07.cgz
result_root: "/result/fileio/600s-100%-1HDD-f2fs-64G-1024f-seqrewr-sync/lkp-ws02/debian-x86_64-2015-02-07.cgz/x86_64-rhel/gcc-4.9/33033a10ecaf8b27aee8dc2d3ffed1aa022ecb6d/0"
job_file: "/lkp/scheduled/lkp-ws02/cyclic_fileio-600s-100%-1HDD-f2fs-64G-1024f-seqrewr-sync-x86_64-rhel-CYCLIC_HEAD-33033a10ecaf8b27aee8dc2d3ffed1aa022ecb6d-20151030-77110-1o721no-0.yaml"
dequeue_time: 2015-11-02 03:31:36.907364911 +08:00
nr_cpu: "$(nproc)"
max_uptime: 1931.5400000000004
initrd: "/osimage/debian/debian-x86_64-2015-02-07.cgz"
bootloader_append:
- root=/dev/ram0
- user=lkp
- job=/lkp/scheduled/lkp-ws02/cyclic_fileio-600s-100%-1HDD-f2fs-64G-1024f-seqrewr-sync-x86_64-rhel-CYCLIC_HEAD-33033a10ecaf8b27aee8dc2d3ffed1aa022ecb6d-20151030-77110-1o721no-0.yaml
- ARCH=x86_64
- kconfig=x86_64-rhel
- branch=linux-devel/devel-hourly-2015110200
- commit=33033a10ecaf8b27aee8dc2d3ffed1aa022ecb6d
- BOOT_IMAGE=/pkg/linux/x86_64-rhel/gcc-4.9/33033a10ecaf8b27aee8dc2d3ffed1aa022ecb6d/vmlinuz-4.3.0-rc7-virtio-gpu-08131-g33033a1
- max_uptime=1931
- RESULT_ROOT=/result/fileio/600s-100%-1HDD-f2fs-64G-1024f-seqrewr-sync/lkp-ws02/debian-x86_64-2015-02-07.cgz/x86_64-rhel/gcc-4.9/33033a10ecaf8b27aee8dc2d3ffed1aa022ecb6d/0
- LKP_SERVER=inn
- |-
  ipmi_watchdog.start_now=1

  earlyprintk=ttyS0,115200 systemd.log_level=err
  debug apic=debug sysrq_always_enabled rcupdate.rcu_cpu_stall_timeout=100
  panic=-1 softlockup_panic=1 nmi_watchdog=panic oops=panic load_ramdisk=2 prompt_ramdisk=0
  console=ttyS0,115200 console=tty0 vga=normal

  rw
lkp_initrd: "/lkp/lkp/lkp-x86_64.cgz"
modules_initrd: "/pkg/linux/x86_64-rhel/gcc-4.9/33033a10ecaf8b27aee8dc2d3ffed1aa022ecb6d/modules.cgz"
bm_initrd: "/osimage/deps/debian-x86_64-2015-02-07.cgz/lkp.cgz,/osimage/deps/debian-x86_64-2015-02-07.cgz/run-ipconfig.cgz,/osimage/deps/debian-x86_64-2015-02-07.cgz/turbostat.cgz,/lkp/benchmarks/turbostat.cgz,/osimage/deps/debian-x86_64-2015-02-07.cgz/fs.cgz,/osimage/deps/debian-x86_64-2015-02-07.cgz/fileio.cgz"
job_state: finished
loadavg: 25.00 21.74 12.01 2/340 18620
start_time: '1446406393'
end_time: '1446407012'
version: "/lkp/lkp/.src-20151030-185949"
mkfs -t f2fs /dev/sdd1
mount -t f2fs /dev/sdd1 /fs/sdd1
cd /fs/sdd1
fallocate -l 67108864 test_file.0
fallocate -l 67108864 test_file.1
fallocate -l 67108864 test_file.2
fallocate -l 67108864 test_file.3
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sysbench --test=fileio --max-requests=0 --num-threads=24 --max-time=600 --file-test-mode=seqrewr --file-total-size=68719476736 --file-io-mode=sync --file-num=1024 run