diff options
| author | Song Liu <song@kernel.org> | 2023-04-12 14:04:21 -0700 |
|---|---|---|
| committer | Daniel Borkmann <daniel@iogearbox.net> | 2023-04-13 14:32:04 +0200 |
| commit | de6d014a09bf12a9a8959d60c0a1d4a41d394a89 (patch) | |
| tree | 3c6c5aadb6209a77bc78dd07b27f1b676682fc82 /tools/testing/selftests/bpf/prog_tests/perf_event_stackmap.c | |
| parent | 5a674611d116a5fc28c5429beea2b78c6e2933ef (diff) | |
selftests/bpf: Use read_perf_max_sample_freq() in perf_event_stackmap
Currently, perf_event sample period in perf_event_stackmap is set too low
that the test fails randomly. Fix this by using the max sample frequency,
from read_perf_max_sample_freq().
Move read_perf_max_sample_freq() to testing_helpers.c. Replace the CHECK()
with if-printf, as CHECK is not available in testing_helpers.c.
Fixes: 1da4864c2b20 ("selftests/bpf: Add callchain_stackid")
Signed-off-by: Song Liu <song@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20230412210423.900851-2-song@kernel.org
Diffstat (limited to 'tools/testing/selftests/bpf/prog_tests/perf_event_stackmap.c')
| -rw-r--r-- | tools/testing/selftests/bpf/prog_tests/perf_event_stackmap.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/tools/testing/selftests/bpf/prog_tests/perf_event_stackmap.c b/tools/testing/selftests/bpf/prog_tests/perf_event_stackmap.c index 33144c9432ae..f4aad35afae1 100644 --- a/tools/testing/selftests/bpf/prog_tests/perf_event_stackmap.c +++ b/tools/testing/selftests/bpf/prog_tests/perf_event_stackmap.c @@ -63,7 +63,8 @@ void test_perf_event_stackmap(void) PERF_SAMPLE_BRANCH_NO_FLAGS | PERF_SAMPLE_BRANCH_NO_CYCLES | PERF_SAMPLE_BRANCH_CALL_STACK, - .sample_period = 5000, + .freq = 1, + .sample_freq = read_perf_max_sample_freq(), .size = sizeof(struct perf_event_attr), }; struct perf_event_stackmap *skel; |