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Date: Tue, 9 Sep 2014 09:45:54 +0200 From: Stephane Eranian <eranian@...gle.com> To: Adrian Hunter <adrian.hunter@...el.com> Cc: Ingo Molnar <mingo@...nel.org>, Arnaldo Carvalho de Melo <acme@...nel.org>, LKML <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>, 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 Tue, Sep 9, 2014 at 9:14 AM, Adrian Hunter <adrian.hunter@...el.com> wrote: > 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'? > Why are we relying on an external command now in perf record? >> >> 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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