From de6d014a09bf12a9a8959d60c0a1d4a41d394a89 Mon Sep 17 00:00:00 2001 From: Song Liu Date: Wed, 12 Apr 2023 14:04:21 -0700 Subject: 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 Signed-off-by: Daniel Borkmann Link: https://lore.kernel.org/bpf/20230412210423.900851-2-song@kernel.org --- tools/testing/selftests/bpf/testing_helpers.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'tools/testing/selftests/bpf/testing_helpers.h') diff --git a/tools/testing/selftests/bpf/testing_helpers.h b/tools/testing/selftests/bpf/testing_helpers.h index 6ec00bf79cb5..eb8790f928e4 100644 --- a/tools/testing/selftests/bpf/testing_helpers.h +++ b/tools/testing/selftests/bpf/testing_helpers.h @@ -20,3 +20,5 @@ struct test_filter_set; int parse_test_list(const char *s, struct test_filter_set *test_set, bool is_glob_pattern); + +__u64 read_perf_max_sample_freq(void); -- cgit