Re: [GIT PULL 00/18] perf/core improvements and fixes

[Ingo Molnar]

* Arnaldo Carvalho de Melo <acme@xxxxxxxxxx> 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@xxxxxxxxxx>
> 
> ----------------------------------------------------------------
> 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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