[PATCH v4 0/7] Event parsing fixes
James Clark
james.clark at linaro.org
Thu Aug 22 06:24:44 PDT 2024
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 shows "stalled-cycles-..."
as <not supported> events, when before it just didn't show them at all when
they weren't supported:
$ perf stat -- true
Performance counter stats for 'true':
0.66 msec task-clock # 0.384 CPUs utilized
0 context-switches # 0.000 /sec
0 cpu-migrations # 0.000 /sec
52 page-faults # 78.999 K/sec
<not counted> cpu_atom/instructions/ (0.00%)
978,399 cpu_core/instructions/ # 1.02 insn per cycle
<not counted> cpu_atom/cycles/ (0.00%)
959,722 cpu_core/cycles/ # 1.458 GHz
<not supported> cpu_atom/stalled-cycles-frontend/
<not supported> cpu_core/stalled-cycles-frontend/
I don't think that's a big deal though and could probably be fixed up
later if we really want to.
Tested on Raptor Lake, Juno, N1, Ampere (with the DSU cycles PMU) and
I also faked an Apple M on Juno.
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 | 33 +-
.../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 | 101 ++++--
tools/perf/util/stat-shadow.c | 14 +-
tools/perf/util/stat.c | 2 +-
21 files changed, 348 insertions(+), 413 deletions(-)
--
2.34.1
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