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author | Jin Yao <yao.jin@linux.intel.com> | 2021-04-27 15:01:29 +0800 |
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committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2021-04-29 10:30:59 -0300 |
commit | 660e533e87ff4e66434f90fca987b929d4eb0059 (patch) | |
tree | 9939ca5f95109d6b5c4b32ce2ae3cae5e4f448ea /tools/perf/util/evsel.h | |
parent | 92637cc7295510f4b3cb945cafcaec97c82e42f2 (diff) | |
download | linux-660e533e87ff4e66434f90fca987b929d4eb0059.tar.gz |
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/evsel.h')
-rw-r--r-- | tools/perf/util/evsel.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/tools/perf/util/evsel.h b/tools/perf/util/evsel.h index a9cc9563ac59..75cf5dbfe208 100644 --- a/tools/perf/util/evsel.h +++ b/tools/perf/util/evsel.h @@ -462,4 +462,5 @@ struct perf_env *evsel__env(struct evsel *evsel); int evsel__store_ids(struct evsel *evsel, struct evlist *evlist); void evsel__zero_per_pkg(struct evsel *evsel); +bool evsel__is_hybrid(struct evsel *evsel); #endif /* __PERF_EVSEL_H */ |