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Message-ID: <519D7B0F.9060805@linux.vnet.ibm.com> Date: Thu, 23 May 2013 10:12:31 +0800 From: Michael Wang <wangyun@...ux.vnet.ibm.com> To: Mike Galbraith <bitbucket@...ine.de> CC: Peter Zijlstra <peterz@...radead.org>, LKML <linux-kernel@...r.kernel.org>, Ingo Molnar <mingo@...nel.org>, Alex Shi <alex.shi@...el.com>, Namhyung Kim <namhyung@...nel.org>, Paul Turner <pjt@...gle.com>, Andrew Morton <akpm@...ux-foundation.org>, "Nikunj A. Dadhania" <nikunj@...ux.vnet.ibm.com>, Ram Pai <linuxram@...ibm.com> Subject: Re: [PATCH v2] sched: wake-affine throttle On 05/22/2013 10:55 PM, Mike Galbraith wrote: > On Wed, 2013-05-22 at 17:25 +0800, Michael Wang wrote: > >> I've not test the hackbench with wakeup-buddy before, will do it this >> time, I suppose the 15% illegal income will suffered, anyway, it's >> illegal :) > Thanks, Mike, these are very helpful data ;-) > On a 4 socket 40 core (+SMT) box, hackbench wasn't too happy. I'm not sure whether this is caused by the SOFT IRQ case, I have some idea in mind which may could help to solve that issue, but if this huge regression is caused by other reasons... Anyway, I will rework on the idea and let's see whether we could make things better :) Regards, Michael Wang > > defaultx = wakeup buddy > > tbench 30 localhost > 1 5 10 20 40 80 160 320 > 3.10.0-default 188.13 953.03 1860.03 3180.93 5378.34 10826.06 11342.90 11651.30 > 3.10.0-defaultx 187.26 934.55 1859.30 3160.29 5016.35 12477.15 12567.05 12068.47 > > hackbench -l 400 -g 400 > 3.10.0-default Time: 3.919 4.250 4.116 > 3.10.0-defaultx Time: 9.074 10.985 9.849 > > aim7 compute > AIM Multiuser Benchmark - Suite VII "1.1" 3.10.0-default AIM Multiuser Benchmark - Suite VII "1.1" 3.10.0-defaultx > > Tasks Jobs/Min JTI Real CPU Jobs/sec/task Tasks Jobs/Min JTI Real CPU Jobs/sec/task > 1 428.0 100 14.2 4.1 7.1328 1 428.9 100 14.1 4.1 7.1479 > 1 417.9 100 14.5 4.1 6.9655 1 430.4 100 14.1 4.0 7.1733 > 1 427.7 100 14.2 4.2 7.1277 1 424.7 100 14.3 4.2 7.0778 > 5 2350.7 99 12.9 13.8 7.8355 5 2156.6 99 14.1 19.8 7.1886 > 5 2422.1 99 12.5 12.1 8.0735 5 2155.0 99 14.1 19.7 7.1835 > 5 2189.3 98 13.8 18.3 7.2977 5 2108.6 99 14.4 21.4 7.0285 > 10 4515.6 93 13.4 27.6 7.5261 10 4529.1 96 13.4 29.5 7.5486 > 10 4708.6 96 12.9 24.3 7.8477 10 4597.9 96 13.2 26.9 7.6631 > 10 4636.6 96 13.1 25.7 7.7276 10 5197.3 98 11.7 14.8 8.6621 > 20 8053.2 95 15.1 78.1 6.7110 20 9431.9 98 12.8 49.1 7.8599 > 20 8250.5 92 14.7 67.5 6.8754 20 7973.7 97 15.2 93.4 6.6447 > 20 8178.1 97 14.8 78.5 6.8151 20 8145.2 95 14.9 78.4 6.7876 > 40 17413.8 94 13.9 88.6 7.2557 40 16312.2 92 14.9 115.6 6.7968 > 40 16775.1 93 14.5 111.6 6.9896 40 17070.4 94 14.2 110.6 7.1127 > 40 16031.7 93 15.1 147.1 6.6799 40 17578.0 94 13.8 96.9 7.3241 > 80 33666.7 95 14.4 138.4 7.0139 80 33854.7 96 14.3 177.9 7.0531 > 80 33949.6 97 14.3 128.0 7.0728 80 34164.9 96 14.2 146.4 7.1177 > 80 35752.2 96 13.6 159.1 7.4484 80 33807.5 96 14.3 127.6 7.0432 > 160 74814.8 98 13.0 149.8 7.7932 160 75162.8 98 12.9 148.6 7.8295 > 160 74015.3 97 13.1 149.5 7.7099 160 74642.0 98 13.0 168.2 7.7752 > 160 73621.9 98 13.2 146.3 7.6689 160 75572.9 98 12.8 163.6 7.8722 > 320 139210.3 96 13.9 280.1 7.2505 320 139010.8 97 14.0 282.4 7.2401 > 320 135135.9 96 14.3 277.8 7.0383 320 139611.2 96 13.9 282.2 7.2714 > 320 139110.5 96 13.9 280.4 7.2453 320 138514.3 97 14.0 281.0 7.2143 > 640 223538.9 98 17.4 577.2 5.8213 640 224704.5 95 17.3 567.3 5.8517 > 640 224055.5 97 17.3 575.7 5.8348 640 222385.3 95 17.4 580.1 5.7913 > 640 225488.4 96 17.2 566.3 5.8721 640 225882.4 93 17.2 563.0 5.8824 > > > -- > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@...r.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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