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| author |   Jin Yao <yao.jin@linux.intel.com> | 2021-04-27 15:01:29 +0800 |
|---|---|---|
| committer |   Arnaldo Carvalho de Melo <acme@redhat.com> | 2021-04-29 10:30:59 -0300 |
| commit | 660e533e87ff4e66434f90fca987b929d4eb0059 (patch) | |
| tree | 9939ca5f95109d6b5c4b32ce2ae3cae5e4f448ea /tools/perf/util/evlist-hybrid.h | |
| parent | perf stat: Filter out unmatched aggregation for hybrid event (diff) | |
| download | linux-dev-660e533e87ff4e66434f90fca987b929d4eb0059.tar.xz linux-dev-660e533e87ff4e66434f90fca987b929d4eb0059.zip | |
perf stat: Warn group events from different hybrid PMU
If a group has events which are from different hybrid PMUs,
shows a warning:
"WARNING: events in group from different hybrid PMUs!"
This is to remind the user not to put the core event and atom
event into one group.
Next, just disable grouping.
# perf stat -e "{cpu_core/cycles/,cpu_atom/cycles/}" -a -- sleep 1
WARNING: events in group from different hybrid PMUs!
WARNING: grouped events cpus do not match, disabling group:
anon group { cpu_core/cycles/, cpu_atom/cycles/ }
Performance counter stats for 'system wide':
5,438,125 cpu_core/cycles/
3,914,586 cpu_atom/cycles/
1.004250966 seconds time elapsed
Signed-off-by: Jin Yao <yao.jin@linux.intel.com>
Reviewed-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Kan Liang <kan.liang@intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20210427070139.25256-17-yao.jin@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/evlist-hybrid.h')
| -rw-r--r-- | tools/perf/util/evlist-hybrid.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/tools/perf/util/evlist-hybrid.h b/tools/perf/util/evlist-hybrid.h index e25861649d8f..19f74b4c340a 100644 --- a/tools/perf/util/evlist-hybrid.h +++ b/tools/perf/util/evlist-hybrid.h @@ -8,5 +8,7 @@ #include <unistd.h> int evlist__add_default_hybrid(struct evlist *evlist, bool precise); +void evlist__warn_hybrid_group(struct evlist *evlist); +bool evlist__has_hybrid(struct evlist *evlist); #endif /* __PERF_EVLIST_HYBRID_H */ |