linux-kernel - [PATCH 0/5] perf tools: Clean up cpu map handling for a system-wide evsel (v1)

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Date:   Sat, 24 Sep 2022 09:57:32 -0700
From:   Namhyung Kim <namhyung@...nel.org>
To:     Arnaldo Carvalho de Melo <acme@...nel.org>,
        Jiri Olsa <jolsa@...nel.org>
Cc:     Ingo Molnar <mingo@...nel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Ian Rogers <irogers@...gle.com>,
        Adrian Hunter <adrian.hunter@...el.com>,
        linux-perf-users@...r.kernel.org,
        Kan Liang <kan.liang@...ux.intel.com>,
        Leo Yan <leo.yan@...aro.org>
Subject: [PATCH 0/5] perf tools: Clean up cpu map handling for a system-wide evsel (v1)

Hello,

The system-wide evsel has a cpu map for all (online) cpus regardless
of user requested cpus.  But the cpu map handling code has some
special case for it and I think we can cleanup the code by making sure
that such a evsel has a proper cpu/thread maps from the beginning.
This patches should not cause any change in the behavior.

You can get the code from 'perf/cpumap-update-v1' branch in

  git://git.kernel.org/pub/scm/linux/kernel/git/namhyung/linux-perf.git
  
Thanks,
Namhyung


Namhyung Kim (5):
  libperf: Populate system-wide evsel maps
  libperf: Propagate maps only if necessary
  perf tools: Get rid of evlist__add_on_all_cpus()
  perf tools: Add evlist__add_sched_switch()
  perf tools: Remove special handling of system-wide evsel

 tools/lib/perf/evlist.c             | 23 ++++++++-------
 tools/lib/perf/evsel.c              |  3 --
 tools/perf/arch/x86/util/intel-pt.c | 15 ++++------
 tools/perf/builtin-script.c         |  3 --
 tools/perf/tests/switch-tracking.c  | 15 ++++------
 tools/perf/util/evlist.c            | 46 ++++++++++++-----------------
 tools/perf/util/evlist.h            |  1 +
 tools/perf/util/evsel.c             | 12 ++------
 tools/perf/util/stat.c              |  3 --
 9 files changed, 44 insertions(+), 77 deletions(-)

-- 
2.37.3.998.g577e59143f-goog