Messages in this thread | | | Date | Wed, 11 May 2022 23:13:06 -0700 | Subject | [PATCH v2 0/2] Fix topdown event weak grouping | From | Ian Rogers <> |
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Keep topdown events within a group when a weak group is broken. This is a requirement as topdown events must form a group.
Add perf stat testing including for required topdown event group behaviors.
Note: as with existing topdown evsel/evlist code topdown events are assumed to be on the PMU "cpu". On Alderlake the PMU "cpu_core" should also be tested. Future changes can fix Alderlake.
v2. Correct behavior wrt pmu prefixed events and avoid the test using deprecated events: Suggested-by: Liang, Kan <kan.liang@linux.intel.com>
Ian Rogers (2): perf evlist: Keep topdown counters in weak group perf test: Add basic stat and topdown group test
tools/perf/arch/x86/util/evsel.c | 12 ++++++ tools/perf/tests/shell/stat.sh | 67 ++++++++++++++++++++++++++++++++ tools/perf/util/evlist.c | 16 +++++++- tools/perf/util/evsel.c | 10 +++++ tools/perf/util/evsel.h | 3 ++ 5 files changed, 106 insertions(+), 2 deletions(-) create mode 100755 tools/perf/tests/shell/stat.sh
-- 2.36.0.512.ge40c2bad7a-goog
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