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perf test stat: Avoid hybrid assumption when virtualized

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The cycles event will fallback to task-clock in the hybrid test when
running virtualized. Change the test to not fail for this.

Fixes: 65d1182191 ("perf test: Add a test for default perf stat command")
Reviewed-by: James Clark <james.clark@linaro.org>
Signed-off-by: Ian Rogers <irogers@google.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@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: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20241212173354.9860-1-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Ian Rogers
2024-12-12 09:33:54 -08:00
committed by Arnaldo Carvalho de Melo
parent 2adbf5349a
commit f9c506fb69
1 changed files with 5 additions and 1 deletions
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6
tools/perf/tests/shell/stat.sh
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@@ -187,7 +187,11 @@ test_hybrid() {
# Run default Perf stat
cycles_events=$(perf stat -- true 2>&1 | grep -E "/cycles/[uH]*| cycles[:uH]* " -c)
if [ "$pmus" -ne "$cycles_events" ]
# The expectation is that default output will have a cycles events on each
# hybrid PMU. In situations with no cycles PMU events, like virtualized, this
# can fall back to task-clock and so the end count may be 0. Fail if neither
# condition holds.
if [ "$pmus" -ne "$cycles_events" ] && [ "0" -ne "$cycles_events" ]
then
echo "hybrid test [Found $pmus PMUs but $cycles_events cycles events. Failed]"
err=1