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perf test: Stat test for repeat with a weak group

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Breaking a weak group requires multiple passes of an evlist, with
multiple runs this can introduce bugs ultimately leading to
segfaults. Add a test to cover this.

Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: https://lore.kernel.org/r/20220822213352.75721-2-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Ian Rogers 2022-08-22 14:33:52 -07:00 committed by Arnaldo Carvalho de Melo
parent bf515f024e
commit 0c361c6eab
1 changed files with 19 additions and 0 deletions
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19
tools/perf/tests/shell/stat.sh
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@ -28,6 +28,24 @@ test_stat_record_report() {
echo "stat record and report test [Success]"
}
test_stat_repeat_weak_groups() {
echo "stat repeat weak groups test"
if ! perf stat -e '{cycles,cycles,cycles,cycles,cycles,cycles,cycles,cycles,cycles,cycles}' \
true 2>&1 | grep -q 'seconds time elapsed'
then
echo "stat repeat weak groups test [Skipped event parsing failed]"
return
fi
if ! perf stat -r2 -e '{cycles,cycles,cycles,cycles,cycles,cycles,cycles,cycles,cycles,cycles}:W' \
true > /dev/null 2>&1
then
echo "stat repeat weak groups test [Failed]"
err=1
return
fi
echo "stat repeat weak groups test [Success]"
}
test_topdown_groups() {
# Topdown events must be grouped with the slots event first. Test that
# parse-events reorders this.
@ -75,6 +93,7 @@ test_topdown_weak_groups() {
test_default_stat
test_stat_record_report
test_stat_repeat_weak_groups
test_topdown_groups
test_topdown_weak_groups
exit $err