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| author | Leo Yan <leo.yan@arm.com> | 2026-04-02 17:04:49 +0100 |
|---|---|---|
| committer | Namhyung Kim <namhyung@kernel.org> | 2026-04-02 18:11:00 -0700 |
| commit | e0f4767bf403131f7ec7378d0d23ad6c29b01936 (patch) | |
| tree | f944bffd08e8b0c938c92772357e652186d05c89 /tools/perf/scripts/python | |
| parent | d148934beeacaf074e1e6f00fae3be737bbc4089 (diff) | |
perf metricgroup: Refine error logs
Return -ENOENT when no metric/group matches, and directly use the return
value from expr__find_ids(), so -EINVAL is reserved for parse failures.
Print separate logs to make it clear.
Before:
perf stat -C 5 -vvv
Using CPUID 0x00000000410fd490
metric expr 100 * (STALL_SLOT_BACKEND / (CPU_CYCLES * #slots) - BR_MIS_PRED * 3 / CPU_CYCLES) for backend_bound
parsing metric: 100 * (STALL_SLOT_BACKEND / (CPU_CYCLES * #slots) - BR_MIS_PRED * 3 / CPU_CYCLES)
Failure to read '#slots'
literal: #slots = nan
syntax error
Cannot find metric or group `Default'
After:
perf stat -C 5 -vvv
Using CPUID 0x00000000410fd490
metric expr 100 * (STALL_SLOT_BACKEND / (CPU_CYCLES * #slots) - BR_MIS_PRED * 3 / CPU_CYCLES) for backend_bound
parsing metric: 100 * (STALL_SLOT_BACKEND / (CPU_CYCLES * #slots) - BR_MIS_PRED * 3 / CPU_CYCLES)
Failure to read '#slots'
literal: #slots = nan
syntax error
Fail to parse metric or group `Default'
Signed-off-by: Leo Yan <leo.yan@arm.com>
Reviewed-by: Ian Rogers <irogers@google.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Diffstat (limited to 'tools/perf/scripts/python')
0 files changed, 0 insertions, 0 deletions