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perf test shell stat_bpf_counters: Fix test on Intel

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commit 68ca249c96 upstream.

As of now, bpf counters (bperf) don't support event groups.  But the
default perf stat includes topdown metrics if supported (on recent Intel
machines) which require groups.  That makes perf stat exiting.

  $ sudo perf stat --bpf-counter true
  bpf managed perf events do not yet support groups.

Actually the test explicitly uses cycles event only, but it missed to
pass the option when it checks the availability of the command.

Fixes: 2c0cb9f560 ("perf test: Add a shell test for 'perf stat --bpf-counters' new option")
Reviewed-by: Song Liu <song@kernel.org>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: bpf@vger.kernel.org
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20230825164152.165610-2-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Namhyung Kim
2023-08-25 09:41:51 -07:00
committed by Greg Kroah-Hartman
parent cb0940640d
commit be69e8c8f5
1 changed files with 2 additions and 2 deletions
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4
tools/perf/tests/shell/stat_bpf_counters.sh
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@@ -22,10 +22,10 @@ compare_number()
}
# skip if --bpf-counters is not supported
if ! perf stat --bpf-counters true > /dev/null 2>&1; then
if ! perf stat -e cycles --bpf-counters true > /dev/null 2>&1; then
if [ "$1" = "-v" ]; then
echo "Skipping: --bpf-counters not supported"
perf --no-pager stat --bpf-counters true || true
perf --no-pager stat -e cycles --bpf-counters true || true
fi
exit 2
fi