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| author | Yangyu Chen <cyy@cyyself.name> | 2025-02-13 16:44:09 +0800 |
|---|---|---|
| committer | Namhyung Kim <namhyung@kernel.org> | 2025-02-19 13:23:43 -0800 |
| commit | 2ed0e3ea8aac156b43e9c6a452d751723785fc4b (patch) | |
| tree | 3f01084e5f56f160ca07748f1ea187d35cc3ee24 /tools/sched_ext/scx_simple.bpf.c | |
| parent | 29bab85418efd329c1a984fc9b885b6709481b27 (diff) | |
perf vendor events arm64: Fix incorrect CPU_CYCLE in metrics expr
Some existing metrics for Neoverse N3 and V3 expressions use CPU_CYCLE
to represent the number of cycles, but this is incorrect. The correct
event to use is CPU_CYCLES.
I encountered this issue while working on a patch to add pmu events for
Cortex A720 and A520 by reusing the existing patch for Neoverse N3 and
V3 by James Clark [1] and my check script [2] reported this issue.
[1] https://lore.kernel.org/lkml/20250122163504.2061472-1-james.clark@linaro.org/
[2] https://github.com/cyyself/arm-pmu-check
Signed-off-by: Yangyu Chen <cyy@cyyself.name>
Reviewed-by: James Clark <james.clark@linaro.org>
Link: https://lore.kernel.org/r/tencent_D4ED18476ADCE818E31084C60E3E72C14907@qq.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Diffstat (limited to 'tools/sched_ext/scx_simple.bpf.c')
0 files changed, 0 insertions, 0 deletions