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Date:   Wed, 7 Jul 2021 15:37:34 -0300
From:   Arnaldo Carvalho de Melo <acme@kernel.org>
To:     Jiri Olsa <jolsa@redhat.com>
Cc:     lkml <linux-kernel@vger.kernel.org>,
        Peter Zijlstra <a.p.zijlstra@chello.nl>,
        Ingo Molnar <mingo@kernel.org>,
        Mark Rutland <mark.rutland@arm.com>,
        Namhyung Kim <namhyung@kernel.org>,
        Alexander Shishkin <alexander.shishkin@linux.intel.com>,
        Michael Petlan <mpetlan@redhat.com>,
        Ian Rogers <irogers@google.com>, nakamura.shun@fujitsu.com,
        linux-perf-users@vger.kernel.org
Subject: Re: [RFCv2 0/7] libperf: Add leader/group info to perf_evsel
Message-ID: <YOX0bpjlr/Xqlbk0@kernel.org>
References: <20210706151704.73662-1-jolsa@kernel.org>
 <YOW+eyxYtPhc2hSf@kernel.org>
 <YOXwVPS6zIyw0C/k@krava>
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Em Wed, Jul 07, 2021 at 08:20:04PM +0200, Jiri Olsa escreveu:
> On Wed, Jul 07, 2021 at 11:47:23AM -0300, Arnaldo Carvalho de Melo wrote:
> > Em Tue, Jul 06, 2021 at 05:16:57PM +0200, Jiri Olsa escreveu:
> > > hi,
> > > moving leader/group info to libperf's perf_evsel.
> > > 
> > > This was asked for by Shunsuke [1] and is on my list
> > > as a prereq for event parsing move to libperf.
> > 
> > So I'll add a:
> > 
> > Requested-by: Shunsuke Nakamura <nakamura.shun@fujitsu.com>
> 
> yep, but let's hear from him first if that's the case actualy ;-)
> 
> he did not mention any specific interface.. so I wonder
> what we have is ok with him

Its all in tmp.perf/core, but from what I saw, yeah, he requested being
able to have a group leader.

Nakamura-san, isn't that the case?

- Arnaldo
 
> thanks,
> jirka
> 
> > 
> > - Arnaldo
> >  
> > > I still need to do more tests, but I'd like to check
> > > with you guys if there's any feedback on this first.
> > > 
> > > Also available in:
> > >   git://git.kernel.org/pub/scm/linux/kernel/git/jolsa/perf.git
> > >   libperf/groups
> > > 
> > > v2 change:
> > >   - repost due to smtp failures, no changes
> > > 
> > > thanks,
> > > jirka
> > > 
> > > 
> > > [1] https://lore.kernel.org/linux-perf-users/OSBPR01MB46005B38568E90509946ECA9F7319@OSBPR01MB4600.jpnprd01.prod.outlook.com/
> > > 
> > > 
> > > ---
> > > Jiri Olsa (7):
> > >       libperf: Change tests to single static and shared binaries
> > >       libperf: Move idx to perf_evsel::idx
> > >       libperf: Move leader to perf_evsel::leader
> > >       libperf: Move nr_groups to evlist::nr_groups
> > >       libperf: Add perf_evlist__set_leader function
> > >       libperF: Add group support to perf_evsel__open
> > >       libperf: Add tests for perf_evlist__set_leader function
> > > 
> > >  tools/lib/perf/Build                     |  2 ++
> > >  tools/lib/perf/Makefile                  | 30 +++++++++++++++++++++++++-----
> > >  tools/lib/perf/evlist.c                  | 22 ++++++++++++++++++++++
> > >  tools/lib/perf/evsel.c                   | 33 +++++++++++++++++++++++++++++----
> > >  tools/lib/perf/include/internal/evlist.h |  2 ++
> > >  tools/lib/perf/include/internal/evsel.h  |  5 ++++-
> > >  tools/lib/perf/include/internal/tests.h  |  4 ++--
> > >  tools/lib/perf/include/perf/evlist.h     |  1 +
> > >  tools/lib/perf/libperf.map               |  1 +
> > >  tools/lib/perf/tests/Build               |  5 +++++
> > >  tools/lib/perf/tests/Makefile            | 40 ----------------------------------------
> > >  tools/lib/perf/tests/main.c              | 15 +++++++++++++++
> > >  tools/lib/perf/tests/test-cpumap.c       |  3 ++-
> > >  tools/lib/perf/tests/test-evlist.c       | 30 +++++++++++++++++++++++-------
> > >  tools/lib/perf/tests/test-evsel.c        |  3 ++-
> > >  tools/lib/perf/tests/test-threadmap.c    |  3 ++-
> > >  tools/lib/perf/tests/tests.h             | 10 ++++++++++
> > >  tools/perf/arch/x86/util/iostat.c        |  4 ++--
> > >  tools/perf/builtin-diff.c                |  4 ++--
> > >  tools/perf/builtin-record.c              |  4 ++--
> > >  tools/perf/builtin-report.c              |  8 ++++----
> > >  tools/perf/builtin-script.c              |  9 +++++----
> > >  tools/perf/builtin-stat.c                | 12 ++++++------
> > >  tools/perf/builtin-top.c                 | 10 +++++-----
> > >  tools/perf/tests/bpf.c                   |  2 +-
> > >  tools/perf/tests/evsel-roundtrip-name.c  |  6 +++---
> > >  tools/perf/tests/mmap-basic.c            |  8 ++++----
> > >  tools/perf/tests/parse-events.c          | 74 +++++++++++++++++++++++++++++++++++++-------------------------------------
> > >  tools/perf/tests/pfm.c                   |  4 ++--
> > >  tools/perf/ui/browsers/annotate.c        |  2 +-
> > >  tools/perf/util/annotate.c               |  8 ++++----
> > >  tools/perf/util/auxtrace.c               | 12 ++++++------
> > >  tools/perf/util/cgroup.c                 |  2 +-
> > >  tools/perf/util/evlist.c                 | 44 +++++++++++++-------------------------------
> > >  tools/perf/util/evlist.h                 |  2 --
> > >  tools/perf/util/evsel.c                  | 32 +++++++++++++++++++++++++-------
> > >  tools/perf/util/evsel.h                  | 14 ++++++++------
> > >  tools/perf/util/header.c                 | 18 +++++++++---------
> > >  tools/perf/util/metricgroup.c            | 22 +++++++++++-----------
> > >  tools/perf/util/parse-events.c           |  8 ++++----
> > >  tools/perf/util/pfm.c                    |  2 +-
> > >  tools/perf/util/python.c                 |  2 +-
> > >  tools/perf/util/record.c                 |  6 +++---
> > >  tools/perf/util/stat-shadow.c            |  2 +-
> > >  tools/perf/util/stat.c                   |  2 +-
> > >  tools/perf/util/stream.c                 |  2 +-
> > >  46 files changed, 310 insertions(+), 224 deletions(-)
> > >  create mode 100644 tools/lib/perf/tests/Build
> > >  delete mode 100644 tools/lib/perf/tests/Makefile
> > >  create mode 100644 tools/lib/perf/tests/main.c
> > >  create mode 100644 tools/lib/perf/tests/tests.h
> > > 
> > 
> > -- 
> > 
> > - Arnaldo
> > 
> 

-- 

- Arnaldo