Hi Jeremy, please have a look at Linpack and Stream results http://perf-desktop.brq.redhat.com/LinpackAndStream/Red-Hat-Enterprise-Linux-Server-release-7.2/maja.lab.eng.brq.redhat.com-htON/4.6.0-0.rc5.git0.1.el7.x86_64/throughput-performance/Results-2016-Apr-28_14h01m32s/RawData.tar.xz and http://perf-desktop.brq.redhat.com/LinpackAndStream/Red-Hat-Enterprise-Linux-Server-release-7.2/maja.lab.eng.brq.redhat.com-htON/4.6.0-0.rc5.git0.1.wastedcores.el7.x86_64/throughput-performance/Results-2016-Apr-29_15h37m17s/RawData.tar.xz We have collected /proc/sched_debug every 10 seconds - there are ""*scheddebug" files for every run. We are also collecting mpstat statistics every 2 seconds. For example during a test when 64 stream jobs were running in parallel there are corresponding /proc/sched_debug logs: 4.6.0-0.rc5.git0.1.el7.x86_64/throughput-performance/Results-2016-Apr-28_14h01m32s/RawData/stream.affinityRun.064streams.loop01.scheddebug <http://perf-desktop.brq.redhat.com/LinpackAndStream/Red-Hat-Enterprise-Linux-Server-release-7.2/maja.lab.eng.brq.redhat.com-htON/4.6.0-0.rc5.git0.1.el7.x86_64/throughput-performance/Results-2016-Apr-28_14h01m32s/RawData/stream.affinityRun.064streams.loop01.scheddebug> 4.6.0-0.rc5.git0.1.wastedcores.el7.x86_64/throughput-performance/Results-2016-Apr-29_15h37m17s/RawData/stream.affinityRun.064streams.loop01.scheddebug <http://perf-desktop.brq.redhat.com/LinpackAndStream/Red-Hat-Enterprise-Linux-Server-release-7.2/maja.lab.eng.brq.redhat.com-htON/4.6.0-0.rc5.git0.1.wastedcores.el7.x86_64/throughput-performance/Results-2016-Apr-29_15h37m17s/RawData/stream.affinityRun.064streams.loop01.scheddebug> However, we are not sure how to process these log files. Is there any tool to do so or could you share some hints what to look for? Thanks a lot! Jirka On Tue, May 3, 2016 at 4:18 PM, Jeremy Eder <jeder@xxxxxxxxxx> wrote: > Yikes. 20% off...why? Do you have any system stats? Particularly > /proc/sched_debug collected at some interval. > > On Mon, May 2, 2016 at 12:39 PM, Jirka Hladky <jhladky@xxxxxxxxxx> wrote: > >> Hi all, >> >> we have compared scheduler performance >> for kernel-4.6.0-0.rc5.git0.1.wastedcores >> against kernel-4.6.0-0.rc5.git0.1.el7. >> >> *Summary: *against all expectations* kernel-4.6.0-0.rc5.git0.1.wastedcores performs on >> average 20% WORSE than the regular kernel. * >> >> Results for different servers: >> >> SPECjbb2005: >> >> - karkulka-02.lab.eng.brq.redhat.com-htON >> <http://perf-desktop.brq.redhat.com/SPECjbb/.vs./karkulka-02.lab.eng.brq.redhat.com-htON/4.6.0-0.rc5.git0.1.el7.x86_64-throughput-performancevs4.6.0-0.rc5.git0.1.wastedcores.el7.x86_64-throughput-performance/Result-2016-Apr-26_03h05m44sResult-2016-Apr-29_22h17m07s/specjbb2005.html> >> - kiff-01.cluster-qe.lab.eng.brq.redhat.com-htON >> <http://perf-desktop.brq.redhat.com/SPECjbb/.vs./kiff-01.cluster-qe.lab.eng.brq.redhat.com-htON/4.6.0-0.rc5.git0.1.el7.x86_64-throughput-performancevs4.6.0-0.rc5.git0.1.wastedcores.el7.x86_64-throughput-performance/Result-2016-Apr-26_01h47m36sResult-2016-Apr-30_02h21m38s/specjbb2005.html> >> >> SPECjvm2008: >> >> - karkulka-02.lab.eng.brq.redhat.com-htON >> <http://perf-desktop.brq.redhat.com/SPECjvm/.vs./karkulka-02.lab.eng.brq.redhat.com-htON/4.6.0-0.rc5.git0.1.el7.x86_64-throughput-performancevs4.6.0-0.rc5.git0.1.wastedcores.el7.x86_64-throughput-performance/Result-2016-Apr-26_07h58m09sResult-2016-Apr-30_03h09m23s/SPECjvm2008.html> >> - kiff-01.cluster-qe.lab.eng.brq.redhat.com-htON >> <http://perf-desktop.brq.redhat.com/SPECjvm/.vs./kiff-01.cluster-qe.lab.eng.brq.redhat.com-htON/4.6.0-0.rc5.git0.1.el7.x86_64-throughput-performancevs4.6.0-0.rc5.git0.1.wastedcores.el7.x86_64-throughput-performance/Result-2016-Apr-26_05h06m46sResult-2016-Apr-30_05h40m50s/SPECjvm2008.html> >> >> Linpack and Stream: >> >> - karkulka-02.lab.eng.brq.redhat.com-htON >> <http://perf-desktop.brq.redhat.com/LinpackAndStream/.vs./karkulka-02.lab.eng.brq.redhat.com-htON/4.6.0-0.rc5.git0.1.el7.x86_64-throughput-performancevs4.6.0-0.rc5.git0.1.wastedcores.el7.x86_64-throughput-performance/Results-2016-Apr-25_21h38m02sResults-2016-Apr-29_16h22m44s/linpackAndStreamResults.html> >> - kiff-01.cluster-qe.lab.eng.brq.redhat.com-htON >> <http://perf-desktop.brq.redhat.com/LinpackAndStream/.vs./kiff-01.cluster-qe.lab.eng.brq.redhat.com-htON/4.6.0-0.rc5.git0.1.el7.x86_64-throughput-performancevs4.6.0-0.rc5.git0.1.wastedcores.el7.x86_64-throughput-performance/Results-2016-Apr-25_21h36m46sResults-2016-Apr-29_21h37m03s/linpackAndStreamResults.html> >> >> Any comments, questions, suggestions? >> >> Jirka and Kamil >> >> On Thu, Apr 28, 2016 at 12:25 AM, Jirka Hladky <jhladky@xxxxxxxxxx> >> wrote: >> >>> Hi Jeremy, >>> >>> I have just read >>> >>> http://www.i3s.unice.fr/~jplozi/wastedcores/files/extended_talk.pdf >>> http://www.ece.ubc.ca/~sasha/papers/eurosys16-final29.pdf >>> >>> We will definitely test it and share the results here. >>> >>> Jirka >>> >>> >>> > > > -- > > -- Jeremy Eder > _______________________________________________ kernel mailing list kernel@xxxxxxxxxxxxxxxxxxxxxxx http://lists.fedoraproject.org/admin/lists/kernel@xxxxxxxxxxxxxxxxxxxxxxx
