Messages in this thread | | | Date | Fri, 4 Aug 2023 09:57:37 +0300 | Subject | Re: [PATCH v5 1/7] perf evlist: Add perf_evlist__go_system_wide() helper | From | Adrian Hunter <> |
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On 4/08/23 05:07, Yang Jihong wrote: > For dummy events that keep tracking, we may need to modify its cpu_maps. > For example, change the cpu_maps to record sideband events for all CPUS. > Add perf_evlist__go_system_wide() helper to support this scenario. > > Signed-off-by: Yang Jihong <yangjihong1@huawei.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
> --- > tools/lib/perf/evlist.c | 9 +++++++++ > tools/lib/perf/include/internal/evlist.h | 2 ++ > 2 files changed, 11 insertions(+) > > diff --git a/tools/lib/perf/evlist.c b/tools/lib/perf/evlist.c > index b8b066d0dc5e..3acbbccc1901 100644 > --- a/tools/lib/perf/evlist.c > +++ b/tools/lib/perf/evlist.c > @@ -738,3 +738,12 @@ int perf_evlist__nr_groups(struct perf_evlist *evlist) > } > return nr_groups; > } > + > +void perf_evlist__go_system_wide(struct perf_evlist *evlist, struct perf_evsel *evsel) > +{ > + if (!evsel->system_wide) { > + evsel->system_wide = true; > + if (evlist->needs_map_propagation) > + __perf_evlist__propagate_maps(evlist, evsel); > + } > +} > diff --git a/tools/lib/perf/include/internal/evlist.h b/tools/lib/perf/include/internal/evlist.h > index 3339bc2f1765..d86ffe8ed483 100644 > --- a/tools/lib/perf/include/internal/evlist.h > +++ b/tools/lib/perf/include/internal/evlist.h > @@ -135,4 +135,6 @@ int perf_evlist__id_add_fd(struct perf_evlist *evlist, > void perf_evlist__reset_id_hash(struct perf_evlist *evlist); > > void __perf_evlist__set_leader(struct list_head *list, struct perf_evsel *leader); > + > +void perf_evlist__go_system_wide(struct perf_evlist *evlist, struct perf_evsel *evsel); > #endif /* __LIBPERF_INTERNAL_EVLIST_H */
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