linux-kernel - [PATCH V3 0/4] Several perf metrics topdown related fixes

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Date:   Wed, 18 May 2022 07:38:56 -0700
From:   kan.liang@...ux.intel.com
To:     acme@...nel.org, mingo@...hat.com, irogers@...gle.com,
        jolsa@...nel.org, namhyung@...nel.org,
        linux-kernel@...r.kernel.org, linux-perf-users@...r.kernel.org
Cc:     peterz@...radead.org, zhengjun.xing@...ux.intel.com,
        adrian.hunter@...el.com, ak@...ux.intel.com, eranian@...gle.com,
        Kan Liang <kan.liang@...ux.intel.com>
Subject: [PATCH V3 0/4] Several perf metrics topdown related fixes

From: Kan Liang <kan.liang@...ux.intel.com>

The Patch 1 is a follow-up patch for Ian's ("Fix topdown event weak
grouping")[1].

The patch 2 is to fix the perf metrics topdown events in a mixed group.
It reuses the function introduced in [1].
Patch 1 & 2 should be on top of [1].

The patch 3 & 4 are to fix other perf metrics topdown related issues.
They can be merged separately.

[1]: https://lore.kernel.org/all/20220517052724.283874-2-irogers@google.com/

Changes since V2:
- Add more comments for the evsel__sys_has_perf_metrics() and
  topdown_sys_has_perf_metrics()
- Remove the uncessary evsel->core.leader->nr_members = 0; in patch 2.
  The value has been updated in the new evsel__remove_from_group().
- Add Reviewed-by from Ian for patch 4

Changes since V1:
- Add comments for the evsel__sys_has_perf_metrics() and
  topdown_sys_has_perf_metrics()
- Factor out evsel__remove_from_group()
- Add Reviewed-by from Ian for patch 3

Kan Liang (4):
  perf evsel: Fixes topdown events in a weak group for the hybrid
    platform
  perf stat: Always keep perf metrics topdown events in a group
  perf parse-events: Support different format of the topdown event name
  perf parse-events: Move slots event for the hybrid platform too

 tools/perf/arch/x86/util/evlist.c  |  7 ++++---
 tools/perf/arch/x86/util/evsel.c   | 23 +++++++++++++++++++++--
 tools/perf/arch/x86/util/topdown.c | 25 +++++++++++++++++++++++++
 tools/perf/arch/x86/util/topdown.h |  7 +++++++
 tools/perf/builtin-stat.c          |  7 ++-----
 tools/perf/util/evlist.c           |  6 +-----
 tools/perf/util/evsel.c            | 13 +++++++++++--
 tools/perf/util/evsel.h            |  2 +-
 8 files changed, 72 insertions(+), 18 deletions(-)
 create mode 100644 tools/perf/arch/x86/util/topdown.h

-- 
2.35.1