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Subject[PATCH v2 0/2] Fix topdown event weak grouping
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

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 <>

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/ | 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/


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