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Message-ID: <20170214063153.GA3837@gmail.com>
Date: Tue, 14 Feb 2017 07:31:53 +0100
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>,
Alexei Starovoitov <ast@...com>,
Clark Williams <williams@...hat.com>,
Daniel Borkmann <daniel@...earbox.net>,
David Ahern <dsahern@...il.com>,
"David S . Miller" <davem@...emloft.net>,
Jiri Olsa <jolsa@...nel.org>, Joe Perches <joe@...ches.com>,
Joe Stringer <joe@....org>,
Mickaël Salaün <mic@...ikod.net>,
Namhyung Kim <namhyung@...nel.org>, netdev@...r.kernel.org,
Peter Zijlstra <peterz@...radead.org>,
Steven Rostedt <rostedt@...dmis.org>,
Taeung Song <treeze.taeung@...il.com>,
Wang Nan <wangnan0@...wei.com>,
Wang YanQing <udknight@...il.com>,
linux-perf-users@...r.kernel.org,
Arnaldo Carvalho de Melo <acme@...hat.com>
Subject: Re: [GIT PULL 00/15] perf/core improvements and fixes
* Arnaldo Carvalho de Melo <acme@...nel.org> wrote:
> Hi Ingo,
>
> Please consider pulling,
>
> - Arnaldo
>
> Test results at the end of this message, as usual.
>
> The following changes since commit f2029b1e47b607619d1dd2cb0bbb77f64ec6b7c2:
>
> perf/x86/intel: Add Kaby Lake support (2017-02-11 21:28:23 +0100)
>
> are available in the git repository at:
>
> git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git tags/perf-core-for-mingo-4.11-20170213
>
> for you to fetch changes up to a734fb5d60067a73dd7099a58756847c07f9cd68:
>
> samples/bpf: Reset global variables (2017-02-13 17:22:53 -0300)
>
> ----------------------------------------------------------------
> perf/core improvements and fixes:
>
> New feature:
>
> - Introduce the 'delta-abs' 'perf diff' compute method, that orders the
> histogram entries by the absolute value of the percentage delta for a
> function in two perf.data files, i.e. the functions that changed the
> most (increase or decrease in samples) comes first (Namhyung Kim)
>
> User visible:
>
> - Improve message about tweaking the kernel.perf_event_paranoid setting,
> telling how to make the change permanent by editing /etc/sysctl.conf
> (Ingo Molnar)
>
> Infrastructure:
>
> - Introduce linux/compiler-gcc.h as a counterpart to the kernel's,
> initially containing the definition of __fallthrough, more to
> come (__maybe_unused, etc) (Arnaldo Carvalho de Melo)
>
> - Fixes for problems uncovered by building tools/perf with clang, such
> as always true tests of arrays against NULL and variables that sometimes
> were used without being initialized (Arnaldo Carvalho de Melo, Steven Rostedt)
>
> - Before loading a new ELF, clear global variables set by the
> samples/bpf loader (Mickaël Salaün)
>
> - Ignore already processed ELF sections in the samples/bpf
> loader (Mickaël Salaün)
>
> - Fix compile error in the scripting code with some perl5
> versions (Wang YanQing)
>
> Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
>
> ----------------------------------------------------------------
> Arnaldo Carvalho de Melo (6):
> tools include: Introduce linux/compiler-gcc.h
> tools lib traceevent plugin function: Initialize 'index' variable
> perf evsel: Inform how to make a sysctl setting permanent
> perf symbols: No need to check if sym->name is NULL
> perf tests record: No need to test an array against NULL
> perf symbols: dso->name is an array, no need to check it against NULL
>
> Mickaël Salaün (3):
> samples/bpf: Add missing header
> samples/bpf: Ignore already processed ELF sections
> samples/bpf: Reset global variables
>
> Namhyung Kim (4):
> perf diff: Add 'delta-abs' compute method
> perf diff: Add diff.order config option
> perf diff: Add diff.compute config option
> perf diff: Change default setting to "delta-abs"
>
> Steven Rostedt (VMware) (1):
> tools lib traceevent: Initialize lenght on OLD_RING_BUFFER_TYPE_TIME_STAMP
>
> Wang YanQing (1):
> perf scripting perl: Fix compile error with some perl5 versions
>
> samples/bpf/bpf_load.c | 7 ++
> samples/bpf/tracex5_kern.c | 1 +
> tools/include/linux/compiler-gcc.h | 14 ++++
> tools/include/linux/compiler.h | 10 +--
> tools/lib/traceevent/kbuffer-parse.c | 1 +
> tools/lib/traceevent/plugin_function.c | 2 +-
> tools/perf/Documentation/perf-config.txt | 12 ++++
> tools/perf/Documentation/perf-diff.txt | 15 ++++-
> tools/perf/MANIFEST | 1 +
> tools/perf/builtin-diff.c | 78 ++++++++++++++++++++--
> tools/perf/builtin-kmem.c | 4 +-
> tools/perf/builtin-record.c | 2 +-
> tools/perf/builtin-sched.c | 2 +-
> tools/perf/builtin-stat.c | 2 +-
> tools/perf/builtin-top.c | 2 +-
> tools/perf/tests/perf-record.c | 2 +-
> tools/perf/util/evsel.c | 4 +-
> tools/perf/util/evsel_fprintf.c | 1 -
> tools/perf/util/machine.c | 2 +-
> tools/perf/util/map.c | 4 +-
> tools/perf/util/scripting-engines/Build | 2 +-
> .../perf/util/scripting-engines/trace-event-perl.c | 4 +-
> tools/perf/util/symbol_fprintf.c | 2 +-
> 23 files changed, 145 insertions(+), 29 deletions(-)
> create mode 100644 tools/include/linux/compiler-gcc.h
Pulled, thanks a lot Arnaldo!
Ingo
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