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Date: Fri, 8 Jul 2016 09:18:17 +0100 From: Morten Rasmussen <morten.rasmussen@....com> To: KEITA KOBAYASHI <keita.kobayashi.ym@...esas.com> Cc: "peterz@...radead.org" <peterz@...radead.org>, "mingo@...hat.com" <mingo@...hat.com>, "dietmar.eggemann@....com" <dietmar.eggemann@....com>, "yuyang.du@...el.com" <yuyang.du@...el.com>, "vincent.guittot@...aro.org" <vincent.guittot@...aro.org>, "mgalbraith@...e.de" <mgalbraith@...e.de>, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, Gaku Inami <gaku.inami.xw@...renesas.com>, Yoshihiro Shimoda <yoshihiro.shimoda.uh@...esas.com> Subject: Re: [PATCH v2 00/13] sched: Clean-ups and asymmetric cpu capacity support On Fri, Jul 08, 2016 at 07:35:56AM +0000, KEITA KOBAYASHI wrote: > Hi, > > I tested these patches on Renesas SoC r8a7790(CA15*4 + CA7*4) > and your preview branch[1] on Renesas SoC r8a7795(CA57*4 + CA53*4). > > > Test 0: > > for i in `seq 1 10`; \ > > do sysbench --test=cpu --max-time=3 --num-threads=1 run; > > \ > > done \ > > | awk '{if ($4=="events:") {print $5; sum +=$5; runs +=1}} \ > > END {print "Average events: " sum/runs}' > > > > Target: ARM TC2 (2xA15+3xA7) > > > > (Higher is better) > > tip: Average events: 146.9 > > patch: Average events: 217.9 > > > Target: Renesas SoC r8a7790(CA15*4 + CA7*4) > w/ capacity patches: Average events: 200.2 > w/o capacity patches: Average events: 144.4 > > Target: Renesas SoC r8a7795(CA57*4 + CA53*4) > w/ capacity patches : 3587.7 > w/o capacity patches : 2327.8 > > > Test 1: > > perf stat --null --repeat 10 -- \ > > perf bench sched messaging -g 50 -l 5000 > > > > Target: Intel IVB-EP (2*10*2) > > > > tip: 4.861970420 seconds time elapsed ( +- 1.39% ) > > patch: 4.886204224 seconds time elapsed ( +- 0.75% ) > > > > Target: ARM TC2 A7-only (3xA7) (-l 1000) > > > > tip: 61.485682596 seconds time elapsed ( +- 0.07% ) > > patch: 62.667950130 seconds time elapsed ( +- 0.36% ) > > > Target: Renesas SoC r8a7790(CA15*4) (-l 1000) > w/ capacity patches: 38.955532040 seconds time elapsed ( +- 0.12% ) > w/o capacity patches: 39.424945580 seconds time elapsed ( +- 0.10% ) > > Target: Renesas SoC r8a7795(CA57*4) (-l 1000) > w/ capacity patches : 29.804292200 seconds time elapsed ( +- 0.37% ) > w/o capacity patches : 29.838826790 seconds time elapsed ( +- 0.40% ) > > Tested-by: Keita Kobayashi <keita.kobayashi.ym@...esas.com> Thank you for testing and sharing your test results. They seem to show a significant improvement in throughput which is in line with the measurement we have for the ARM dev boards and the MediaTek SoC. Thanks, Morten
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