On Wed, 2015-02-11 at 15:25 +0800, pang.xun...@zte.com.cn wrote:
> Hello,
>
> Does "+1.1% unixbench.score" mean better or worse?
>
> Anyway, this is a load bug fix, does can affect the load balancing
> behavior a little.
I think this means something better :)
Best Regards,
Huang, Ying
> Regards,
> Xunlei
>
>
>
> Huang Ying <ying.hu...@intel.com>
> 2015-02-09 上午 11:27
>
> 收件人
> Xunlei Pang <pang.xun...@linaro.org>,
> 抄送
> Ingo Molnar <mi...@kernel.org>, LKML <linux-kernel@vger.kernel.org>, LKP
> ML <l...@01.org>
> 主题
> [LKP] [sched/fair] 638476007d1: +1.1% unixbench.score
>
>
>
>
>
>
> FYI, we noticed the below changes on
>
> git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git sched/core
> commit 638476007d13534b2ed4134bf0279ef44071140b ("sched/fair: Fix the
> dealing with decay_count in __synchronize_entity_decay()")
>
> It appears that your patch cause CPU usage increased a little, so that
> unixbench score increased.
>
> testbox/testcase/testparams: nhm-white/unixbench/spawn
>
> 7f1a169b88f513e3 638476007d13534b2ed4134bf0
> ---------------- --------------------------
> %stddev %change %stddev
> \ | \
> 268908 ± 0% +4.6% 281320 ± 0%
> unixbench.time.involuntary_context_switches
> 1.147e+08 ± 0% +1.5% 1.164e+08 ± 0%
> unixbench.time.minor_page_faults
> 3607 ± 0% +1.1% 3648 ± 0% unixbench.score
> 324 ± 0% +1.2% 328 ± 0%
> unixbench.time.percent_of_cpu_this_job_got
> 633 ± 0% +1.2% 641 ± 0% unixbench.time.system_time
> 54100 ± 3% +51.0% 81705 ± 21%
> sched_debug.cpu#4.ttwu_local
> 65678 ± 7% +49.5% 98187 ± 16%
> sched_debug.cpu#6.ttwu_local
> 5624 ± 31% +52.1% 8553 ± 11% sched_debug.cpu#6.curr->pid
> 58 ± 20% +37.6% 80 ± 7%
> sched_debug.cfs_rq[3]:/.runnable_load_avg
> 61 ± 10% +22.5% 74 ± 14%
> sched_debug.cpu#2.cpu_load[3]
> 218479 ± 5% +15.4% 252190 ± 5%
> sched_debug.cpu#6.ttwu_count
> 102 ± 17% -19.3% 82 ± 10%
> sched_debug.cpu#4.cpu_load[2]
> 423974 ± 4% +15.6% 490072 ± 5% sched_debug.cpu#5.avg_idle
> 62 ± 4% +16.9% 72 ± 9%
> sched_debug.cpu#2.cpu_load[4]
> 152298 ± 2% +9.7% 167037 ± 3%
> sched_debug.cfs_rq[5]:/.min_vruntime
> 156795 ± 1% +11.3% 174544 ± 1%
> sched_debug.cfs_rq[7]:/.min_vruntime
> 155535 ± 3% +11.8% 173813 ± 2%
> sched_debug.cfs_rq[6]:/.min_vruntime
> 9231 ± 0% +1.3% 9348 ± 0% vmstat.system.in
>
> nhm-white: Nehalem
> Memory: 6G
>
>
> unixbench.time.system_time
>
> 643
> ++---------------------------------------------------------------O----+
> 642 ++ O O O
> O O O O O O O O O O O O O O O O O O O O O O |
> 641 ++ O O O O |
> 640 ++ |
> | |
> 639 ++ |
> 638 ++ |
> 637 ++ |
> | |
> 636 ++ |
> 635 ++ .* |
> *.*.. .*..* + .*.. .*.*.. * |
> 634 ++ * *..*.*..* * + |
> 633
> ++--------------------------------*-----------------------------------+
>
>
> unixbench.time.involuntary_context_switches
>
> 286000
> ++-----------------------------------------------------------------+
> 284000 ++ O |
> | O O |
> 282000 ++ O O
> O
> 280000 O+O O O O O O O O O O O O |
> | O O O O O O O O |
> 278000 ++ O O O |
> 276000 ++ |
> 274000 ++ |
> | |
> 272000 ++ |
> 270000 ++ .*.*. *.*.. .* |
> *.*. *..*. .* : *.*.*. |
> 268000 ++ * + : |
> 266000
> ++----------------*--*---------------------------------------------+
>
>
> kmsg.tsc:Fast_TSC_calibration_failed
>
> 1
> ++-------------------------------------O--------O---------------------+
> | |
> | |
> 0.8 ++ |
> | |
> | |
> 0.6 ++ |
> | |
> 0.4 ++ |
> | |
> | |
> 0.2 ++ |
> | |
> | |
> 0
> O+O--O-O--O-O-O--O-O--O-O--O-O-O--O-O----O-O--O----O-O--O-O-O--O-O--O-O
>
> [*] bisect-good sample
> [O] bisect-bad sample
>
> To reproduce:
>
> apt-get install ruby ruby-oj
> git clone
> git://git.kernel.org/pub/scm/linux/kernel/git/wfg/lkp-tests.git
> cd lkp-tests
> bin/setup-local job.yaml # the job file attached in this email
> bin/run-local 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,
> Huang, Ying
>
>
> [附件 "job.yaml" 被 庞训磊10110855/user/zte_ltd 删除][附件 "reproduce" 被
> 庞训磊10110855/user/zte_ltd 删除
> ]_______________________________________________
> LKP mailing list
> l...@linux.intel.com
>
>
>
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