diff options
| author | Namhyung Kim | 2023-08-25 09:41:51 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman | 2023-09-19 12:28:07 +0200 |
| commit | be69e8c8f5c2fa3a11690205fb7a1be7063a582a (patch) | |
| tree | d2ef2e17e27adb4424c2a93b34c0d16d070db906 /tools | |
| parent | cb0940640d51bc68315b94cc858a3a995b381a87 (diff) | |
perf test shell stat_bpf_counters: Fix test on Intel
commit 68ca249c964f520af7f8763e22f12bd26b57b870 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: 2c0cb9f56020d2ea ("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>
Diffstat (limited to 'tools')
| -rwxr-xr-x | tools/perf/tests/shell/stat_bpf_counters.sh | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/tools/perf/tests/shell/stat_bpf_counters.sh b/tools/perf/tests/shell/stat_bpf_counters.sh index 13473aeba489..6bf24b85294c 100755 --- a/tools/perf/tests/shell/stat_bpf_counters.sh +++ b/tools/perf/tests/shell/stat_bpf_counters.sh @@ -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 |