linux-kernel - [PATCH 0/5] Revert metric hybrid events, fix tools events

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Date:   Fri,  6 May 2022 22:34:05 -0700
From:   Ian Rogers <irogers@...gle.com>
To:     Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...hat.com>,
        Arnaldo Carvalho de Melo <acme@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Jiri Olsa <jolsa@...nel.org>,
        Namhyung Kim <namhyung@...nel.org>,
        Riccardo Mancini <rickyman7@...il.com>,
        Kim Phillips <kim.phillips@....com>,
        Madhavan Srinivasan <maddy@...ux.ibm.com>,
        Shunsuke Nakamura <nakamura.shun@...itsu.com>,
        Florian Fischer <florian.fischer@...q.space>,
        Andi Kleen <ak@...ux.intel.com>,
        John Garry <john.garry@...wei.com>,
        Zhengjun Xing <zhengjun.xing@...ux.intel.com>,
        Adrian Hunter <adrian.hunter@...el.com>,
        James Clark <james.clark@....com>,
        linux-perf-users@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     Stephane Eranian <eranian@...gle.com>,
        Ian Rogers <irogers@...gle.com>
Subject: [PATCH 0/5] Revert metric hybrid events, fix tools events

Hybrid metrics place a PMU at the end of the parse string. This is
also where tool events are placed. The behavior of the parse string
isn't clear and so revert the change for now.

commit 75eafc970bd9 ("perf list: Print all available tool events") had
an off-by-1 error. Try to separate the tool event enum logic from
evsels. Also add a for loop helper to simplify working with a variety
of tool events.

Add support to metrics for more tool events than just
duration_time. Make the sharing logic only look to add for sharing
potentially used tool events, found by scanning the list of metrics.

Ian Rogers (5):
  Revert "perf stat: Support metrics with hybrid events"
  perf evsel: Constify a few arrays
  perf evsel: Add tool event helpers
  perf metrics: Support all tool events
  perf metrics: Don't add all tool events for sharing

 tools/perf/tests/evsel-roundtrip-name.c |   2 +-
 tools/perf/util/evsel.c                 |  53 +++-
 tools/perf/util/evsel.h                 |  22 +-
 tools/perf/util/metricgroup.c           | 373 +++++++-----------------
 tools/perf/util/parse-events.c          |   2 +-
 tools/perf/util/stat-display.c          |   8 +-
 tools/perf/util/stat-shadow.c           |  27 +-
 7 files changed, 180 insertions(+), 307 deletions(-)

-- 
2.36.0.512.ge40c2bad7a-goog