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Message-ID: <20150727155820.GA21894@gmail.com>
Date: Mon, 27 Jul 2015 17:58:20 +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>,
Andi Kleen <ak@...ux.intel.com>, Borislav Petkov <bp@...e.de>,
David Ahern <dsahern@...il.com>,
Frederic Weisbecker <fweisbec@...il.com>,
Jiri Olsa <jolsa@...hat.com>,
Mathieu Poirier <mathieu.poirier@...aro.org>,
Namhyung Kim <namhyung@...nel.org>,
Pawel Moll <pawel.moll@....com>,
Peter Zijlstra <peterz@...radead.org>,
Stephane Eranian <eranian@...gle.com>,
Steven Rostedt <rostedt@...dmis.org>,
Thomas Gleixner <tglx@...utronix.de>,
Arnaldo Carvalho de Melo <acme@...hat.com>
Subject: Re: [GIT PULL 00/18] perf/core improvements and fixes
* Arnaldo Carvalho de Melo <acme@...nel.org> wrote:
> Hi Ingo,
>
> Please consider pulling,
>
> - Arnaldo
>
> The following changes since commit a11c51acc52822754d66a11c15f6f6edd4d23c55:
>
> Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (2015-07-21 07:58:06 +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 7c14898ba9386ee5c939bb418643ac6baff52840:
>
> perf script: Add option --show-switch-events (2015-07-23 22:51:14 -0300)
>
> ----------------------------------------------------------------
> perf/core improvements and fixes:
>
> New features:
>
> - Introduce PERF_RECORD_SWITCH(_CPU_WIDE) and use it in 'record' to
> ask for context switches, allowing non priviledged tasks to know
> when they are switched in and out, which wasn't possible with
> the other context switch tracepoint and software events, see the
> patch description for a comprehensive justification (Adrian Hunter)
>
> - Stop collecting /proc/kallsyms in perf.data files, saving about
> 4.5MB on a typical x86-64 system, use the symbol resolution
> routines used in all the other tools (report, top, etc) now that
> we can ask libtraceevent to use perf's symbol resolution code.
> (Arnaldo Carvalho de Melo)
>
> User visible fixes:
>
> - Expose perf's symbol resolver to libtraceecent, so that its plugins can
> resolve tracepoint fields to kernel functions, like the 'function' field
> in the "timer:hrtimer_start tracepoint" (Arnaldo Carvalho de Melo)
>
> Infrastructure:
>
> - Map propagation of thread and cpu maps improvements, prep work for
> 'perf stat' new features (Jiri Olsa)
>
> Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
>
> ----------------------------------------------------------------
> Adrian Hunter (5):
> perf: Add PERF_RECORD_SWITCH to indicate context switches
> perf tools: Add new PERF_RECORD_SWITCH event
> perf record: Add option --switch-events to select PERF_RECORD_SWITCH events
> perf script: Don't assume evsel position of tracking events
> perf script: Add option --show-switch-events
>
> Arnaldo Carvalho de Melo (8):
> perf symbols: Add front end cache for DSO symbol lookup
> perf symbols: Introduce map__is_(kernel,kmodule)()
> tools lib traceevent: Allow setting an alternative symbol resolver
> perf symbols: Provide libtraceevent callback to resolve kernel symbols
> perf trace: Provide libtracevent with a kernel symbol resolver
> perf script: Switch from perf.data's kallsyms to perf's symbol resolver
> perf tools: Stop reading the kallsyms data from perf.data
> perf tools: Stop copying kallsyms into the perf.data file header
>
> Jiri Olsa (5):
> perf test: Check for refcnt in thread_map test
> perf evlist: Force perf_evlist__set_maps to propagate maps through events
> perf evlist: Use bool instead of target argument in propagate_maps()
> perf evlist: Tolerate NULL maps in propagate_maps
> perf header: Use argv style storage for cmdline feature data
>
> include/uapi/linux/perf_event.h | 31 +++++++++-
> kernel/events/core.c | 103 +++++++++++++++++++++++++++++++
> tools/lib/traceevent/event-parse.c | 68 +++++++++++++++++++-
> tools/lib/traceevent/event-parse.h | 8 +++
> tools/perf/Documentation/perf-record.txt | 4 ++
> tools/perf/Documentation/perf-script.txt | 4 ++
> tools/perf/builtin-inject.c | 1 +
> tools/perf/builtin-record.c | 7 +++
> tools/perf/builtin-script.c | 48 ++++++++++++--
> tools/perf/builtin-trace.c | 3 +
> tools/perf/perf.h | 1 +
> tools/perf/tests/thread-map.c | 4 ++
> tools/perf/util/dso.h | 4 ++
> tools/perf/util/event.c | 28 +++++++++
> tools/perf/util/event.h | 12 ++++
> tools/perf/util/evlist.c | 28 +++++++--
> tools/perf/util/evlist.h | 12 ++--
> tools/perf/util/evsel.c | 4 ++
> tools/perf/util/header.c | 35 ++++++-----
> tools/perf/util/header.h | 1 +
> tools/perf/util/machine.c | 25 ++++++++
> tools/perf/util/machine.h | 6 ++
> tools/perf/util/map.c | 14 +++++
> tools/perf/util/map.h | 7 +++
> tools/perf/util/record.c | 10 +++
> tools/perf/util/session.c | 21 +++++++
> tools/perf/util/symbol.c | 7 ++-
> tools/perf/util/tool.h | 1 +
> tools/perf/util/trace-event-info.c | 22 +++----
> tools/perf/util/trace-event-parse.c | 30 ---------
> tools/perf/util/trace-event-read.c | 28 ++++-----
> tools/perf/util/trace-event.c | 45 +++++++++-----
> tools/perf/util/trace-event.h | 1 +
> 33 files changed, 513 insertions(+), 110 deletions(-)
Pulled, thanks a lot Arnaldo!
Ingo
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