linux-kernel - [blk] 8f5fea65b0: fxmark.ssd_ext4_no_jnl_DWSL_72

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Date:   Wed, 20 Apr 2022 08:50:56 +0800
From:   kernel test robot <oliver.sang@...el.com>
To:     David Jeffery <djeffery@...hat.com>
Cc:     Jens Axboe <axboe@...nel.dk>, Ming Lei <ming.lei@...hat.com>,
        LKML <linux-kernel@...r.kernel.org>, lkp@...ts.01.org,
        lkp@...el.com, ying.huang@...el.com, feng.tang@...el.com,
        zhengjun.xing@...ux.intel.com, fengwei.yin@...el.com
Subject: [blk]  8f5fea65b0: fxmark.ssd_ext4_no_jnl_DWSL_72_directio.works/sec
 10.4% improvement



Greeting,

FYI, we noticed a 10.4% improvement of fxmark.ssd_ext4_no_jnl_DWSL_72_directio.works/sec due to commit:


commit: 8f5fea65b06de1cc51d4fc23fb4d378d1abd6ed7 ("blk-mq: avoid extending delays of active hctx from blk_mq_delay_run_hw_queues")
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master

in testcase: fxmark
on test machine: 128 threads 2 sockets Intel(R) Xeon(R) Platinum 8358 CPU @ 2.60GHz with 128G memory
with following parameters:

	disk: 1SSD
	media: ssd
	test: DWSL
	fstype: ext4_no_jnl
	directio: directio
	cpufreq_governor: performance
	ucode: 0xd000331

test-description: FxMark is a filesystem benchmark that test multicore scalability.
test-url: https://github.com/sslab-gatech/fxmark





Details are as below:
-------------------------------------------------------------------------------------------------->


To reproduce:

        git clone https://github.com/intel/lkp-tests.git
        cd lkp-tests
        sudo bin/lkp install job.yaml           # job file is attached in this email
        bin/lkp split-job --compatible job.yaml # generate the yaml file for lkp run
        sudo bin/lkp run generated-yaml-file

        # if come across any failure that blocks the test,
        # please remove ~/.lkp and /lkp dir to run from a clean state.

=========================================================================================
compiler/cpufreq_governor/directio/disk/fstype/kconfig/media/rootfs/tbox_group/test/testcase/ucode:
  gcc-11/performance/directio/1SSD/ext4_no_jnl/x86_64-rhel-8.3/ssd/debian-10.4-x86_64-20200603.cgz/lkp-icl-2sp5/DWSL/fxmark/0xd000331

commit: 
  24b45e6c25 ("virtio_blk: simplify refcounting")
  8f5fea65b0 ("blk-mq: avoid extending delays of active hctx from blk_mq_delay_run_hw_queues")

24b45e6c25173abc 8f5fea65b06de1cc51d4fc23fb4 
---------------- --------------------------- 
         %stddev     %change         %stddev
             \          |                \  
    725457            +9.7%     796182        fxmark.ssd_ext4_no_jnl_DWSL_54_directio.works
     14508            +9.7%      15922        fxmark.ssd_ext4_no_jnl_DWSL_54_directio.works/sec
    734846           +10.4%     811315        fxmark.ssd_ext4_no_jnl_DWSL_72_directio.works
     14696           +10.4%      16224        fxmark.ssd_ext4_no_jnl_DWSL_72_directio.works/sec
     23225            -2.7%      22601        proc-vmstat.nr_slab_reclaimable
    554.33 ± 35%     +58.7%     879.67 ± 23%  numa-vmstat.node1.nr_dirtied
    714.33 ± 48%     +74.5%       1246 ± 27%  numa-vmstat.node1.nr_written
      0.76 ± 87%      -0.6        0.20 ± 92%  perf-profile.children.cycles-pp.irq_work_run_list
      0.75 ± 88%      -0.6        0.19 ± 91%  perf-profile.children.cycles-pp.asm_sysvec_irq_work
      0.75 ± 88%      -0.6        0.19 ± 91%  perf-profile.children.cycles-pp.sysvec_irq_work
      0.75 ± 88%      -0.6        0.19 ± 91%  perf-profile.children.cycles-pp.__sysvec_irq_work
      0.75 ± 88%      -0.6        0.19 ± 91%  perf-profile.children.cycles-pp.irq_work_run
      0.75 ± 88%      -0.6        0.19 ± 91%  perf-profile.children.cycles-pp.irq_work_single




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.


-- 
0-DAY CI Kernel Test Service
https://01.org/lkp



View attachment "config-5.17.0-rc2-00075-g8f5fea65b06d" of type "text/plain" (161487 bytes)

View attachment "job-script" of type "text/plain" (8163 bytes)

View attachment "job.yaml" of type "text/plain" (5591 bytes)

View attachment "reproduce" of type "text/plain" (254 bytes)