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

[Ian Rogers]

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@xxxxxxxxxxxxxxx>

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