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| author | Song Liu <song@kernel.org> | 2023-04-07 12:01:30 -0700 |
|---|---|---|
| committer | Andrii Nakryiko <andrii@kernel.org> | 2023-04-07 15:24:43 -0700 |
| commit | 3ebf5212bf042954666b19fe4ff5a98911b08128 (patch) | |
| tree | 822359b640817d808f3b6b4e2871ada325eda7ef /tools/bpf/bpftool/prog.c | |
| parent | f3f21349779776135349a8e6f114a1485b2476b7 (diff) | |
selftests/bpf: Use PERF_COUNT_HW_CPU_CYCLES event for get_branch_snapshot
perf_event with type=PERF_TYPE_RAW and config=0x1b00 turned out to be not
reliable in ensuring LBR is active. Thus, test_progs:get_branch_snapshot is
not reliable in some systems. Replace it with PERF_COUNT_HW_CPU_CYCLES
event, which gives more consistent results.
Signed-off-by: Song Liu <song@kernel.org>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Link: https://lore.kernel.org/bpf/20230407190130.2093736-1-song@kernel.org
Diffstat (limited to 'tools/bpf/bpftool/prog.c')
0 files changed, 0 insertions, 0 deletions