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| author | Jin Yao <yao.jin@linux.intel.com> | 2021-04-27 10:01:29 +0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2021-04-29 16:30:59 +0300 |
| commit | 660e533e87ff4e66434f90fca987b929d4eb0059 (patch) | |
| tree | 9939ca5f95109d6b5c4b32ce2ae3cae5e4f448ea /tools/perf/builtin-stat.c | |
| parent | 92637cc7295510f4b3cb945cafcaec97c82e42f2 (diff) | |
| download | linux-660e533e87ff4e66434f90fca987b929d4eb0059.tar.xz | |
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/builtin-stat.c')
| -rw-r--r-- | tools/perf/builtin-stat.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c index 42e60764ad8d..5a830ae09418 100644 --- a/tools/perf/builtin-stat.c +++ b/tools/perf/builtin-stat.c @@ -48,6 +48,7 @@ #include "util/pmu.h" #include "util/event.h" #include "util/evlist.h" +#include "util/evlist-hybrid.h" #include "util/evsel.h" #include "util/debug.h" #include "util/color.h" @@ -243,6 +244,9 @@ static void evlist__check_cpu_maps(struct evlist *evlist) struct evsel *evsel, *pos, *leader; char buf[1024]; + if (evlist__has_hybrid(evlist)) + evlist__warn_hybrid_group(evlist); + evlist__for_each_entry(evlist, evsel) { leader = evsel->leader; |