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Date: Fri, 17 Apr 2020 18:55:16 -0300 From: Arnaldo Carvalho de Melo <arnaldo.melo@...il.com> To: "Liang, Kan" <kan.liang@...ux.intel.com> Cc: Arnaldo Carvalho de Melo <arnaldo.melo@...il.com>, jolsa@...hat.com, peterz@...radead.org, mingo@...hat.com, linux-kernel@...r.kernel.org, namhyung@...nel.org, adrian.hunter@...el.com, mathieu.poirier@...aro.org, ravi.bangoria@...ux.ibm.com, alexey.budankov@...ux.intel.com, vitaly.slobodskoy@...el.com, pavel.gerasimov@...el.com, mpe@...erman.id.au, eranian@...gle.com, ak@...ux.intel.com Subject: Re: [PATCH V4 00/17] Stitch LBR call stack (Perf Tools) Em Fri, Apr 17, 2020 at 06:54:02PM -0300, Arnaldo Carvalho de Melo escreveu: > Em Fri, Apr 17, 2020 at 05:47:49PM -0400, Liang, Kan escreveu: > > > > > > On 4/17/2020 1:48 PM, Arnaldo Carvalho de Melo wrote: > > > Em Thu, Mar 19, 2020 at 01:25:00PM -0700, kan.liang@...ux.intel.com escreveu: > > > > For a simple test case tchain_edit with 43 depth of call stacks. > > > > perf record --call-graph lbr -- ./tchain_edit > > > > perf report --stitch-lbr > > > > > Without --stitch-lbr, perf report only display 32 depth of call stacks. > > > > With --stitch-lbr, perf report can display all 43 depth of call stacks. > > > > The depth of call stacks increase 34.3%. > > > > > Correspondingly, the processing time of perf report increases 39%, > > > > Without --stitch-lbr: 11.0 sec > > > > With --stitch-lbr: 15.3 sec > > > > Next time provide the full test proggie, I had to expand those ... to > > > reproduce your results, > > > Sure, I will do so in the future. > > > > all I have is in perf/core, some patches are > > > still to be processed, will continue later, have to stop now, see: > > > > https://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git/commit/?id=13cfba6b741ff > > > > For my testing, looks really great! > > > Thanks for the testing. :) > > My pleasure. > > BTW everything is in there by now. And I had to do some more fixes to get it building in my container build test suite, I've restarted it and now its at this point: Fri 17 Apr 2020 06:18:18 PM -03 $ export PERF_TARBALL=http://192.168.122.1/perf/perf-5.7.0-rc1.tar.xz $ dm 1 125.76 alpine:3.4 : Ok gcc (Alpine 5.3.0) 5.3.0, clang version 3.8.0 (tags/RELEASE_380/final) 2 123.16 alpine:3.5 : Ok gcc (Alpine 6.2.1) 6.2.1 20160822, clang version 3.8.1 (tags/RELEASE_381/final) 3 127.96 alpine:3.6 : Ok gcc (Alpine 6.3.0) 6.3.0, clang version 4.0.0 (tags/RELEASE_400/final) 4 138.24 alpine:3.7 : Ok gcc (Alpine 6.4.0) 6.4.0, Alpine clang version 5.0.0 (tags/RELEASE_500/final) (based on LLVM 5.0.0) 5 147.38 alpine:3.8 : Ok gcc (Alpine 6.4.0) 6.4.0, Alpine clang version 5.0.1 (tags/RELEASE_501/final) (based on LLVM 5.0.1) 6 160.57 alpine:3.9 : Ok gcc (Alpine 8.3.0) 8.3.0, Alpine clang version 5.0.1 (tags/RELEASE_502/final) (based on LLVM 5.0.1) 7 186.38 alpine:3.10 : Ok gcc (Alpine 8.3.0) 8.3.0, Alpine clang version 8.0.0 (tags/RELEASE_800/final) (based on LLVM 8.0.0) 8 208.66 alpine:3.11 : Ok gcc (Alpine 9.2.0) 9.2.0, Alpine clang version 9.0.0 (https://git.alpinelinux.org/aports f7f0d2c2b8bcd6a5843401a9a702029556492689) (based on LLVM 9.0.0) 9 176.99 alpine:edge : Ok gcc (Alpine 9.2.0) 9.2.0, Alpine clang version 9.0.1 (git://git.alpinelinux.org/aports 6c34b9a10bcdcdac04a11569c50b61fb50c4ea6e) (based on LLVM 9.0.1) 10 86.14 alt:p8 : Ok x86_64-alt-linux-gcc (GCC) 5.3.1 20151207 (ALT p8 5.3.1-alt3.M80P.1), clang version 3.8.0 (tags/RELEASE_380/final) 11 99.43 alt:p9 : Ok x86_64-alt-linux-gcc (GCC) 8.3.1 20190507 (ALT p9 8.3.1-alt5), clang version 7.0.1 12 104.78 alt:sisyphus : Ok x86_64-alt-linux-gcc (GCC) 9.2.1 20200123 (ALT Sisyphus 9.2.1-alt3), clang version 9.0.1 13 77.72 amazonlinux:1 : Ok gcc (GCC) 7.2.1 20170915 (Red Hat 7.2.1-2), clang version 3.6.2 (tags/RELEASE_362/final) 14 120.69 amazonlinux:2 : Ok gcc (GCC) 7.3.1 20180712 (Red Hat 7.3.1-6), clang version 7.0.1 (Amazon Linux 2 7.0.1-1.amzn2.0.2) 15 24.96 android-ndk:r12b-arm : Ok arm-linux-androideabi-gcc (GCC) 4.9.x 20150123 (prerelease) 16 25.73 android-ndk:r15c-arm : Ok arm-linux-androideabi-gcc (GCC) 4.9.x 20150123 (prerelease) 17 22.34 centos:5 : Ok gcc (GCC) 4.1.2 20080704 (Red Hat 4.1.2-55) 18 31.91 centos:6 : Ok gcc (GCC) 4.4.7 20120313 (Red Hat 4.4.7-23) 19 36.18 centos:7 : Ok gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-39) 20 129.17 centos:8 : Ok gcc (GCC) 8.3.1 20190507 (Red Hat 8.3.1-4), clang version 8.0.1 (Red Hat 8.0.1-1.module_el8.1.0+215+a01033fb) 21: clearlinux:latest - Arnaldo
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