[PATCH v6 0/7] Event parsing fixes

James Clark
2024-09-03T10:20:26Z

I rebased this one and made some other fixes so that I could test it,
so I thought I'd repost it here in case it's helpful. I also added a
new test.

But for the testing it all looks ok.

There is one small difference where it now hides _all_ default
<not supported> events, when previously it would only hide some
selected subset of events like "stalled-cycles-frontend". I think
this is now more consistent across platforms because, for example,
Apple M only has cycles and instructions, and the rest of the
default events would always show as <not supported> there.

Tested on Raptor Lake, Kaby Lake, Juno, N1, Ampere (with the DSU
cycles PMU) and I also faked an Apple M on Juno.

Changes since v5:
* Test on x86 non hybrid
* Assume 1 PMU in the test when no PMUs expose /cpus file

Changes since v4:

* Hide all <not supported> default events when not verbose
* Remove previous note about <not supported> behavior from the cover
letter and replace it with a new note about the new behavior

Changes since v3:

* Rebase onto perf-tools-next 6236ebe07
* Fix Intel TPEBS counting mode test
* Fix arm-spe build
* Add support for DT devices in stat test
* Add a new test for hybrid perf stat default arguments

Ian Rogers (5):
perf evsel: Add alternate_hw_config and use in evsel__match
perf stat: Uniquify event name improvements
perf stat: Remove evlist__add_default_attrs use strings
perf evsel x86: Make evsel__has_perf_metrics work for legacy events
perf evsel: Remove pmu_name

James Clark (2):
perf test: Make stat test work on DT devices
perf test: Add a test for default perf stat command

tools/perf/arch/arm64/util/arm-spe.c | 4 +-
tools/perf/arch/x86/util/evlist.c | 74 +----
tools/perf/arch/x86/util/evsel.c | 35 ++-
tools/perf/builtin-diff.c | 6 +-
tools/perf/builtin-stat.c | 291 +++++++-----------
tools/perf/tests/parse-events.c | 2 +-
tools/perf/tests/shell/stat.sh | 37 ++-
.../perf/tests/shell/test_stat_intel_tpebs.sh | 11 +-
tools/perf/util/evlist.c | 46 +--
tools/perf/util/evlist.h | 12 -
tools/perf/util/evsel.c | 28 +-
tools/perf/util/evsel.h | 22 +-
tools/perf/util/metricgroup.c | 4 +-
tools/perf/util/parse-events.c | 58 ++--
tools/perf/util/parse-events.h | 8 +-
tools/perf/util/parse-events.y | 2 +-
tools/perf/util/pmu.c | 6 +-
tools/perf/util/pmu.h | 2 +-
tools/perf/util/stat-display.c | 109 +++++--
tools/perf/util/stat-shadow.c | 14 +-
tools/perf/util/stat.c | 2 +-
21 files changed, 360 insertions(+), 413 deletions(-)

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2.34.1