diff options
| author |   Adrian Hunter <adrian.hunter@intel.com> | 2022-05-24 10:54:33 +0300 |
|---|---|---|
| committer |   Arnaldo Carvalho de Melo <acme@redhat.com> | 2022-05-26 12:36:57 -0300 |
| commit | d3345fecf9e5f63be7946a1e5bf1f5695c67b445 (patch) | |
| tree | 3200a0c9ebd473da2902df0cc339061aba71ac32 /tools/lib/perf | |
| parent | libperf evlist: Check nr_mmaps is correct (diff) | |
| download | linux-dev-d3345fecf9e5f63be7946a1e5bf1f5695c67b445.tar.xz linux-dev-d3345fecf9e5f63be7946a1e5bf1f5695c67b445.zip | |
perf stat: Add requires_cpu flag for uncore
Uncore events require a CPU i.e. it cannot be -1.
The evsel system_wide flag is intended for events that should be on every
CPU, which does not make sense for uncore events because uncore events do
not map one-to-one with CPUs.
These 2 requirements are not exactly the same, so introduce a new flag
'requires_cpu' for the uncore case.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Ian Rogers <irogers@google.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Leo Yan <leo.yan@linaro.org>
Link: https://lore.kernel.org/r/20220524075436.29144-13-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/lib/perf')
| -rw-r--r-- | tools/lib/perf/evlist.c | 4 | ||||
| -rw-r--r-- | tools/lib/perf/include/internal/evsel.h | 1 |
2 files changed, 4 insertions, 1 deletions
diff --git a/tools/lib/perf/evlist.c b/tools/lib/perf/evlist.c index f51fdb899d19..1c801f8da44f 100644 --- a/tools/lib/perf/evlist.c +++ b/tools/lib/perf/evlist.c @@ -43,7 +43,9 @@ static void __perf_evlist__propagate_maps(struct perf_evlist *evlist, if (!evsel->own_cpus || evlist->has_user_cpus) { perf_cpu_map__put(evsel->cpus); evsel->cpus = perf_cpu_map__get(evlist->user_requested_cpus); - } else if (!evsel->system_wide && perf_cpu_map__empty(evlist->user_requested_cpus)) { + } else if (!evsel->system_wide && + !evsel->requires_cpu && + perf_cpu_map__empty(evlist->user_requested_cpus)) { perf_cpu_map__put(evsel->cpus); evsel->cpus = perf_cpu_map__get(evlist->user_requested_cpus); } else if (evsel->cpus != evsel->own_cpus) { diff --git a/tools/lib/perf/include/internal/evsel.h b/tools/lib/perf/include/internal/evsel.h index cfc9ebd7968e..77fbb8b97e5c 100644 --- a/tools/lib/perf/include/internal/evsel.h +++ b/tools/lib/perf/include/internal/evsel.h @@ -50,6 +50,7 @@ struct perf_evsel { /* parse modifier helper */ int nr_members; bool system_wide; + bool requires_cpu; int idx; }; |