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Date: Tue, 09 Sep 2014 10:14:37 +0300 From: Adrian Hunter <adrian.hunter@...el.com> To: Ingo Molnar <mingo@...nel.org>, Arnaldo Carvalho de Melo <acme@...nel.org> CC: linux-kernel@...r.kernel.org, Alexander Shishkin <alexander.shishkin@...ux.intel.com>, Alexander Yarygin <yarygin@...ux.vnet.ibm.com>, Anton Blanchard <anton@...ba.org>, Christian Borntraeger <borntraeger@...ibm.com>, Corey Ashford <cjashfor@...ux.vnet.ibm.com>, David Ahern <dsahern@...il.com>, Frederic Weisbecker <fweisbec@...il.com>, Jean Pihet <jean.pihet@...aro.org>, Jiri Olsa <jolsa@...hat.com>, Kyle McMartin <kyle@...artin.ca>, Michael Ellerman <mpe@...erman.id.au>, Namhyung Kim <namhyung@...nel.org>, Paul Mackerras <paulus@...ba.org>, Peter Zijlstra <peterz@...radead.org>, Stephane Eranian <eranian@...gle.com>, Sukadev Bhattiprolu <sukadev@...ux.vnet.ibm.com>, Arnaldo Carvalho de Melo <acme@...hat.com> Subject: Re: [GIT PULL 00/13] perf/core improvements and fixes On 09/09/2014 07:59 AM, Ingo Molnar wrote: > > * Arnaldo Carvalho de Melo <acme@...nel.org> wrote: > >> Hi Ingo, >> >> Please consider pulling, >> >> - Arnaldo >> >> The following changes since commit 39b5a56ec0be5effe9b7d0f18cb27724bf2e5d47: >> >> Merge branch 'rfc/perf' into perf/core, because it's ready for inclusion (2014-08-24 22:35:42 +0200) >> >> are available in the git repository at: >> >> >> git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git tags/perf-core-for-mingo >> >> for you to fetch changes up to fa3480cb0a96c8af9ded1a8c836c91bd5704bda1: >> >> perf tools: Add perf_pmu__scan_file() (2014-09-08 17:16:06 -0300) >> >> ---------------------------------------------------------------- >> perf/core improvements and fixes: >> >> User visible: >> >> o Add +field argument support for --sort option (Jiri Olsa) >> >> Infrastructure: >> >> o More intel PT prep work, from Adrian Hunter, including: >> >> - Let a user specify a PMU event without any config terms >> - Add perf-with-kcore script >> - Build programs to copy 32-bit compatibility VDSOs >> - Add support for 32-bit compatibility VDSOs >> - Let default config be defined for a PMU >> - Add perf_pmu__scan_file() >> >> o Add feature checks to .gitignore (Alexander Shishkin) >> >> o "perf kvm stat report" improvements by Alexander Yarygin: >> o Save pid string in opts.target.pid >> o Enable the target.system_wide flag >> o Unify the title bar output >> >> o Fix build issue on powerpc when DWARF support is disabled (Anton Blanchard) >> >> o Allow to specify lib compile variable for spec usage (Jiri Olsa) >> >> Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com> >> >> ---------------------------------------------------------------- >> Adrian Hunter (6): >> perf tools: Let a user specify a PMU event without any config terms >> perf tools: Add perf-with-kcore script >> perf tools: Build programs to copy 32-bit compatibility VDSOs >> perf tools: Add support for 32-bit compatibility VDSOs >> perf tools: Let default config be defined for a PMU >> perf tools: Add perf_pmu__scan_file() >> >> Alexander Shishkin (1): >> perf tools: Add feature checks to .gitignore >> >> Alexander Yarygin (3): >> perf kvm stat report: Save pid string in opts.target.pid >> perf kvm stat report: Enable the target.system_wide flag >> perf kvm stat report: Unify the title bar output >> >> Anton Blanchard (1): >> perf tools powerpc: Fix build issue when DWARF support is disabled >> >> Jiri Olsa (2): >> perf tools: Add +field argument support for --sort option >> perf tools: Allow to specify lib compile variable for spec usage >> >> tools/perf/.gitignore | 2 + >> tools/perf/Makefile.perf | 42 ++++++- >> tools/perf/arch/powerpc/Makefile | 2 +- >> tools/perf/builtin-kvm.c | 23 ++-- >> tools/perf/config/Makefile | 33 ++++- >> tools/perf/config/Makefile.arch | 8 ++ >> tools/perf/perf-read-vdso.c | 59 +++++++++ >> tools/perf/perf-with-kcore.sh | 259 +++++++++++++++++++++++++++++++++++++++ >> tools/perf/tests/pmu.c | 2 +- >> tools/perf/util/kvm-stat.h | 1 - >> tools/perf/util/parse-events.c | 13 +- >> tools/perf/util/parse-events.y | 10 ++ >> tools/perf/util/pmu.c | 79 +++++++++--- >> tools/perf/util/pmu.h | 12 +- >> tools/perf/util/sort.c | 37 +++++- >> tools/perf/util/vdso.c | 170 ++++++++++++++++++++++++- >> tools/perf/util/vdso.h | 4 +- >> 17 files changed, 712 insertions(+), 44 deletions(-) >> create mode 100644 tools/perf/perf-read-vdso.c >> create mode 100644 tools/perf/perf-with-kcore.sh > > Hm, so I'm getting this error, when trying to profile a 32-bit > ELF binary on a 64-bit kernel, on a testbox: > > $ perf record ~/hackbench 10 > Time: 0.115 > [ perf record: Woken up 1 times to write data ] > [ perf record: Captured and wrote 0.373 MB perf.data (~16279 samples) ] > sh: perf-read-vdso32: command not found Presumably perf-read-vdso32 is not in the PATH. Did you 'make install'? > > comet:~/tip> file ~/hackbench > /home/mingo/hackbench: ELF 32-bit LSB executable, Intel 80386, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.2.5, not stripped > > 64-bit executables work fine: > > $ perf record perf bench sched pipe > # Running 'sched/pipe' benchmark: > # Executed 1000000 pipe operations between two processes > > Total time: 13.374 [sec] > > 13.374352 usecs/op > 74769 ops/sec > [ perf record: Woken up 14 times to write data ] > [ perf record: Captured and wrote 3.602 MB perf.data (~157354 samples) ] > > The kernel is an older one: > > $ uname -a > Linux comet 3.14.17-100.fc19.x86_64 #1 SMP Thu Aug 14 17:17:26 > UTC 2014 x86_64 x86_64 x86_64 GNU/Linux > > Thanks, > > Ingo > > -- 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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