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

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Date:	Fri, 29 Apr 2016 21:39:03 +0200
From:	Ingo Molnar <mingo@...nel.org>
To:	Arnaldo Carvalho de Melo <acme@...nel.org>
Cc:	linux-kernel@...r.kernel.org,
	Adrian Hunter <adrian.hunter@...el.com>,
	Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
	Alexei Starovoitov <ast@...nel.org>,
	Ananth N Mavinakayanahalli <ananth@...ux.vnet.ibm.com>,
	Brendan Gregg <brendan.d.gregg@...il.com>,
	David Ahern <dsahern@...il.com>,
	Florian Fainelli <f.fainelli@...il.com>,
	Frederic Weisbecker <fweisbec@...il.com>,
	He Kuang <hekuang@...wei.com>,
	Hemant Kumar <hemant@...ux.vnet.ibm.com>,
	Jiri Olsa <jolsa@...hat.com>,
	Masami Hiramatsu <mhiramat@...nel.org>,
	Milian Wolff <milian.wolff@...b.com>,
	Namhyung Kim <namhyung@...nel.org>,
	Peter Zijlstra <peterz@...radead.org>, pi3orama@....com,
	Vaishali Thakkar <vaishali.thakkar@...cle.com>,
	Wang Nan <wangnan0@...wei.com>, Zefan Li <lizefan@...wei.com>,
	Arnaldo Carvalho de Melo <acme@...hat.com>
Subject: Re: [GIT PULL 00/13] perf/core improvements and fixes


* Arnaldo Carvalho de Melo <acme@...nel.org> wrote:

> Hi Ingo,
> 
> 	Please consider pulling, tested on:
> 
>   [root@...et ~]# 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@...et ~]#
> 
> - 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@...hat.com>
> 
> ----------------------------------------------------------------
> 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