From mboxrd@z Thu Jan 1 00:00:00 1970 Content-Type: multipart/mixed; boundary="===============0164947045001911363==" MIME-Version: 1.0 From: Rong Chen To: lkp@lists.01.org Subject: Re: [sched/numa] f6183ef98b: phoronix-test-suite.aom-av1.0.frames_per_second -25.0% regression Date: Thu, 27 Feb 2020 13:25:27 +0800 Message-ID: In-Reply-To: <20200226083327.GC3818@techsingularity.net> List-Id: --===============0164947045001911363== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable On 2/26/20 4:33 PM, Mel Gorman wrote: > On Wed, Feb 26, 2020 at 09:03:26AM +0100, Vincent Guittot wrote: >> Hi Rong, >> >> On Wed, 26 Feb 2020 at 02:33, kernel test robot wrote: >>> Greeting, >>> >>> FYI, we noticed a -25.0% regression of phoronix-test-suite.aom-av1.0.fr= ames_per_second due to commit: >>> >>> >>> commit: f6183ef98bba39a5de563d4ab4bc889ff2b600d7 ("sched/numa: replace = runnable_load_avg by load_avg") >>> https://git.kernel.org/cgit/linux/kernel/git/mel/linux.git sched-lbnuma= -rewrite-v2r6 >> The following patches in the branch recover the perf regression. Do >> you see regression on the whole branch ? >> > If not, include "sched/fair: fix statistics for find_idlest_group" on top, > particularly if the workload is configured to use threads >=3D nr_cpus. > Hi Gorman, The regression is still exist on commit "sched/fair: fix statistics for = find_idlest_group". $ git log --oneline -2 db79824c2038adc60526970552242420386ed5e2 db79824c2038a sched/fair: fix statistics for find_idlest_group() b92430cf87ebb sched/numa: Stop an exhastive search if a reasonable swap = candidate or idle CPU is found /result/phoronix-test-suite/performance-aom-av1-1.2.0-ucode=3D0x1d/lkp-nhm-= 2ep1/debian-x86_64-phoronix/x86_64-rhel-7.6/gcc-7/db79824c2038adc6052697055= 2242420386ed5e2/0/stats.json: = "phoronix-test-suite.aom-av1.0.frames_per_second": 0.03, /result/phoronix-test-suite/performance-aom-av1-1.2.0-ucode=3D0x1d/lkp-nhm-= 2ep1/debian-x86_64-phoronix/x86_64-rhel-7.6/gcc-7/db79824c2038adc6052697055= 2242420386ed5e2/1/stats.json: = "phoronix-test-suite.aom-av1.0.frames_per_second": 0.03, /result/phoronix-test-suite/performance-aom-av1-1.2.0-ucode=3D0x1d/lkp-nhm-= 2ep1/debian-x86_64-phoronix/x86_64-rhel-7.6/gcc-7/db79824c2038adc6052697055= 2242420386ed5e2/2/stats.json: = "phoronix-test-suite.aom-av1.0.frames_per_second": 0.03, Best Regards, Rong Chen --===============0164947045001911363==--