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Groups > linux.kernel > #1589068
| From | "Huang\, Ying" <ying.huang@intel.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [LKP] [lkp-developer] [sched/fair] 4e5160766f: +149% ftq.noise.50% regression |
| Date | 2017-02-28 01:40 +0100 |
| Message-ID | <tfDZE-504-1@gated-at.bofh.it> (permalink) |
| References | (7 earlier) <sVvBD-5vT-33@gated-at.bofh.it> <sVK7E-79z-11@gated-at.bofh.it> <sVUql-5J1-17@gated-at.bofh.it> <td8GB-4E6-1@gated-at.bofh.it> <tfqg2-3L5-13@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
Vincent Guittot <vincent.guittot@linaro.org> writes: > Hi Ying, > > On 21 February 2017 at 03:40, Huang, Ying <ying.huang@intel.com> wrote: >> Hi, Vincent, >> >> Vincent Guittot <vincent.guittot@linaro.org> writes: >> > > [snip] > >>>> >>>> Here is the test result, >>>> >>>> ========================================================================================= >>>> compiler/cpufreq_governor/freq/kconfig/nr_task/rootfs/samples/tbox_group/test/testcase: >>>> gcc-6/powersave/20/x86_64-rhel-7.2/100%/debian-x86_64-2016-08-31.cgz/6000ss/lkp-hsw-d01/cache/ftq >>>> >>>> commit: >>>> 4e5160766fcc9f41bbd38bac11f92dce993644aa: first bad commit >>>> 09a43ace1f986b003c118fdf6ddf1fd685692d49: parent of first bad commit >>>> b524060933c546fd2410c5a09360ba23a0fef846: with fix patch above >>>> >>>> 4e5160766fcc9f41 09a43ace1f986b003c118fdf6d b524060933c546fd2410c5a093 >>>> ---------------- -------------------------- -------------------------- >>>> %stddev %change %stddev %change %stddev >>>> \ | \ | \ >>>> 3463 ± 10% -61.4% 1335 ± 17% -3.0% 3359 ± 2% ftq.noise.50% >>>> 1116 ± 23% -73.7% 293.90 ± 30% -23.8% 850.69 ± 17% ftq.noise.75% >>> >>> To be honest, I was expecting at least the same level of improvement >>> as the previous patch if not better but i was not expecting worse >>> results >> >> What's your next plan for this regression? At least your previous patch >> could recover part of it. > > I haven't been able to find better fix than the previous patch so i'm > going to send a clean version with proper commit message Great to know this. Could you keep me posted? Best Regards, Huang, Ying > Regards, > Vincent > >> >> Best Regards, >> Huang, Ying
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Re: [LKP] [lkp-developer] [sched/fair] 4e5160766f: +149% ftq.noise.50% regression "Huang\, Ying" <ying.huang@intel.com> - 2017-02-21 03:50 +0100
Re: [LKP] [lkp-developer] [sched/fair] 4e5160766f: +149% ftq.noise.50% regression Vincent Guittot <vincent.guittot@linaro.org> - 2017-02-27 11:00 +0100
Re: [LKP] [lkp-developer] [sched/fair] 4e5160766f: +149% ftq.noise.50% regression "Huang\, Ying" <ying.huang@intel.com> - 2017-02-28 01:40 +0100
Re: [LKP] [lkp-developer] [sched/fair] 4e5160766f: +149% ftq.noise.50% regression Vincent Guittot <vincent.guittot@linaro.org> - 2017-02-28 11:50 +0100
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