On Thu, Feb 25, 2021 at 12:51:47PM +0900, Namhyung Kim wrote: > Add the perf_evlist__reset_id_hash() function as an internal function > so that it can be called by perf to reset the hash table. This is > necessary for perf stat to run the workload multiple times. > > Signed-off-by: Namhyung Kim <[email protected]>
for the patchset Acked-by: Jiri Olsa <[email protected]> thanks, jirka > --- > tools/lib/perf/evlist.c | 13 +++++++++---- > tools/lib/perf/include/internal/evlist.h | 2 ++ > 2 files changed, 11 insertions(+), 4 deletions(-) > > diff --git a/tools/lib/perf/evlist.c b/tools/lib/perf/evlist.c > index 17465d454a0e..a0aaf385cbb5 100644 > --- a/tools/lib/perf/evlist.c > +++ b/tools/lib/perf/evlist.c > @@ -26,13 +26,10 @@ > > void perf_evlist__init(struct perf_evlist *evlist) > { > - int i; > - > - for (i = 0; i < PERF_EVLIST__HLIST_SIZE; ++i) > - INIT_HLIST_HEAD(&evlist->heads[i]); > INIT_LIST_HEAD(&evlist->entries); > evlist->nr_entries = 0; > fdarray__init(&evlist->pollfd, 64); > + perf_evlist__reset_id_hash(evlist); > } > > static void __perf_evlist__propagate_maps(struct perf_evlist *evlist, > @@ -237,6 +234,14 @@ static void perf_evlist__id_hash(struct perf_evlist > *evlist, > hlist_add_head(&sid->node, &evlist->heads[hash]); > } > > +void perf_evlist__reset_id_hash(struct perf_evlist *evlist) > +{ > + int i; > + > + for (i = 0; i < PERF_EVLIST__HLIST_SIZE; ++i) > + INIT_HLIST_HEAD(&evlist->heads[i]); > +} > + > void perf_evlist__id_add(struct perf_evlist *evlist, > struct perf_evsel *evsel, > int cpu, int thread, u64 id) > diff --git a/tools/lib/perf/include/internal/evlist.h > b/tools/lib/perf/include/internal/evlist.h > index 2d0fa02b036f..212c29063ad4 100644 > --- a/tools/lib/perf/include/internal/evlist.h > +++ b/tools/lib/perf/include/internal/evlist.h > @@ -124,4 +124,6 @@ int perf_evlist__id_add_fd(struct perf_evlist *evlist, > struct perf_evsel *evsel, > int cpu, int thread, int fd); > > +void perf_evlist__reset_id_hash(struct perf_evlist *evlist); > + > #endif /* __LIBPERF_INTERNAL_EVLIST_H */ > -- > 2.30.0.617.g56c4b15f3c-goog >
