Re: [GIT PULL 00/13] perf/core improvements and fixes

From: Ingo Molnar
Date: Fri Apr 29 2016 - 15:39:14 EST



* Arnaldo Carvalho de Melo <acme@xxxxxxxxxx> wrote:

> Hi Ingo,
>
> Please consider pulling, tested on:
>
> [root@jouet ~]# docker-perf-build-test
> alldeps-fedora-rawhide: Ok
> alldeps-ubuntu-14.04: Ok
> alldeps-ubuntu-16.04: Ok <------------- New image
> alldeps-fedora-20: Ok
> alldeps-ubuntu-12.04: Ok
> minimal-debian-experimental-x-mips64: Ok
> minimal-debian-experimental-x-mips64el: Ok
> minimal-debian-experimental-x-mipsel: Ok
> minimal-ubuntu-x-arm: Ok
> minimal-ubuntu-x-arm64: Ok
> minimal-ubuntu-x-ppc64: Ok
> minimal-ubuntu-x-ppc64el: Ok
> alldeps-debian: Ok
> alldeps-mageia: Ok
> alldeps-rhel7: Ok
> alldeps-centos: Ok
> alldeps-opensuse: Ok
> [root@jouet ~]#
>
> - Arnaldo
>
> The following changes since commit 3521ba1cc351e80488c3f85748c92c3853b75818:
>
> powercap, perf/x86/intel/rapl: Add PSys support (2016-04-28 10:39:19 +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-20160429
>
> for you to fetch changes up to ca7ce82a280a65c377c24c95c29b1dec6e80b428:
>
> perf tests: Do not use sizeof on pointer type (2016-04-28 15:37:52 -0300)
>
> ----------------------------------------------------------------
> perf/core improvements and fixes:
>
> User visible:
>
> - Allow generate timestamped suffixed multiple perf.data files upon receiving
> SIGUSR2 in 'perf record', to slice a long running monitoring session, allowing
> to dump uninteresting sessions (Wang Nan)
>
> - Handle ENOMEM for perf_event_max_stack + PERF_SAMPLE_CALLCHAIN
> in perf_evsel__open_strerror(), showing a more informative
> message when the request call stack depth can't be allocated by
> the kernel (Arnaldo Carvalho de Melo)
>
> Infrastructure:
>
> - Use strbuf for making strings in 'perf probe' (Masami Hiramatsu)
>
> - Do not use sizeof on pointer type, not a problem since its a pointer to
> pointer, fix none the less. Found by Coccinelle (Vaishali Thakkar)
>
> Cleanups:
>
> - Fix for Coverity found issues in the bpf feature build test (Florian Fainelli)
>
> Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
>
> ----------------------------------------------------------------
> Arnaldo Carvalho de Melo (3):
> perf evsel: Handle ENOMEM for perf_event_max_stack + PERF_SAMPLE_CALLCHAIN
> perf evsel: Remove two extraneous ending newlines in open_strerror()
> perf trace: Move msg_flags beautifier to tools/perf/trace/beauty/
>
> Florian Fainelli (2):
> bpf tools: Remove expression with no effect
> bpf tools: Fix syscall argument
>
> Masami Hiramatsu (1):
> perf probe: Use strbuf for making strings
>
> Vaishali Thakkar (1):
> perf tests: Do not use sizeof on pointer type
>
> Wang Nan (6):
> perf tools: Introduce trigger class
> perf tools: Derive trigger class from auxtrace_snapshot
> perf record: Split output into multiple files via '--switch-output'
> perf record: Force enable --timestamp-filename when --switch-output is provided
> perf record: Disable buildid cache options by default in switch output mode
> perf record: Generate tracking events for process forked by perf
>
> tools/build/feature/test-bpf.c | 3 +-
> tools/perf/Documentation/perf-record.txt | 13 ++
> tools/perf/builtin-record.c | 173 +++++++++++++++-------
> tools/perf/builtin-trace.c | 62 +-------
> tools/perf/tests/dso-data.c | 2 +-
> tools/perf/trace/beauty/msg_flags.c | 62 ++++++++
> tools/perf/util/evsel.c | 12 +-
> tools/perf/util/probe-event.c | 246 +++++++++++--------------------
> tools/perf/util/probe-event.h | 2 +-
> tools/perf/util/probe-finder.c | 14 +-
> tools/perf/util/trigger.h | 94 ++++++++++++
> 11 files changed, 393 insertions(+), 290 deletions(-)
> create mode 100644 tools/perf/trace/beauty/msg_flags.c
> create mode 100644 tools/perf/util/trigger.h

Pulled, thanks a lot Arnaldo!

Ingo