linux-kernel - [PATCH 0/4] perf tools: Support reading PERF_FORMAT

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Message-Id: <20220819003644.508916-1-namhyung@kernel.org>
Date:   Thu, 18 Aug 2022 17:36:40 -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>,
        linux-perf-users@...r.kernel.org
Subject: [PATCH 0/4] perf tools: Support reading PERF_FORMAT_LOST (v3)

Hello,

The kernel v6.0 added PERF_FORMAT_LOST which can read a number of lost
samples for the given event.  As it can change the output format of
read(2) and perf sample data, it needs to access them carefully.

Changes in v3)
 * add sample_read_group__for_each()  (Jiri)

Changes in v2)
 * add a comment in perf_evsel__read_group()  (Jiri)
 * simplify perf_evsel__adjust_values()  (Jiri)


You can get the code from 'perf/read-lost-v3' brach on

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

Thanks,
Namhyung

Namhyung Kim (4):
  tools headers UAPI: Sync linux/perf_event.h with the kernel sources
  tools lib perf: Handle read format in perf_evsel__read()
  tools lib perf: Add a test case for read formats
  perf tools: Support reading PERF_FORMAT_LOST

 tools/include/uapi/linux/perf_event.h         |   5 +-
 tools/lib/perf/evsel.c                        |  79 ++++++++-
 tools/lib/perf/include/perf/event.h           |   3 +-
 tools/lib/perf/include/perf/evsel.h           |   4 +-
 tools/lib/perf/tests/test-evsel.c             | 161 ++++++++++++++++++
 tools/perf/tests/sample-parsing.c             |  14 +-
 tools/perf/util/event.h                       |  21 ++-
 tools/perf/util/evsel.c                       |  29 ++--
 .../scripting-engines/trace-event-python.c    |  19 ++-
 tools/perf/util/session.c                     |  35 ++--
 tools/perf/util/synthetic-events.c            |  32 +++-
 11 files changed, 356 insertions(+), 46 deletions(-)


base-commit: 568035b01cfb107af8d2e4bd2fb9aea22cf5b868
-- 
2.37.1.595.g718a3a8f04-goog