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Commit 97f63e4a authored by Namhyung Kim's avatar Namhyung Kim Committed by Arnaldo Carvalho de Melo
Browse files

perf tools: Keep group information 



Add a few of group-related field in struct perf_{evlist,evsel} so that
the group information in a evlist can be known easily.  It only counts
groups which have more than 1 members since leader-only groups are
treated as non-group events.

Signed-off-by: default avatarNamhyung Kim <namhyung@kernel.org>
Acked-by: default avatarJiri Olsa <jolsa@redhat.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1358845787-1350-2-git-send-email-namhyung@kernel.org


Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent 0de233b9

tools/perf/util/evlist.c

+6 −1
Original line number Diff line number Diff line
@@ -117,6 +117,9 @@ void __perf_evlist__set_leader(struct list_head *list) 
	struct perf_evsel *evsel, *leader;



	leader = list_entry(list->next, struct perf_evsel, node);

	evsel = list_entry(list->prev, struct perf_evsel, node);



	leader->nr_members = evsel->idx - leader->idx + 1;



	list_for_each_entry(evsel, list, node) {

		if (evsel != leader)
@@ -126,9 +129,11 @@ void __perf_evlist__set_leader(struct list_head *list) 


void perf_evlist__set_leader(struct perf_evlist *evlist)

{

	if (evlist->nr_entries)

	if (evlist->nr_entries) {

		evlist->nr_groups = evlist->nr_entries > 1 ? 1 : 0;

		__perf_evlist__set_leader(&evlist->entries);

	}

}



int perf_evlist__add_default(struct perf_evlist *evlist)

{

tools/perf/util/evlist.h

+1 −0
Original line number Diff line number Diff line
@@ -21,6 +21,7 @@ struct perf_evlist { 
	struct list_head entries;

	struct hlist_head heads[PERF_EVLIST__HLIST_SIZE];

	int		 nr_entries;

	int		 nr_groups;

	int		 nr_fds;

	int		 nr_mmaps;

	int		 mmap_len;

tools/perf/util/evsel.h

+6 −0
Original line number Diff line number Diff line
@@ -74,6 +74,7 @@ struct perf_evsel { 
	bool 			needs_swap;

	/* parse modifier helper */

	int			exclude_GH;

	int			nr_members;

	struct perf_evsel	*leader;

	char			*group_name;

};
@@ -259,4 +260,9 @@ bool perf_evsel__fallback(struct perf_evsel *evsel, int err, 
int perf_evsel__open_strerror(struct perf_evsel *evsel,

			      struct perf_target *target,

			      int err, char *msg, size_t size);



static inline int perf_evsel__group_idx(struct perf_evsel *evsel)

{

	return evsel->idx - evsel->leader->idx;

}

#endif /* __PERF_EVSEL_H */

tools/perf/util/parse-events.c

+1 −0
Original line number Diff line number Diff line
@@ -884,6 +884,7 @@ int parse_events(struct perf_evlist *evlist, const char *str) 
	if (!ret) {

		int entries = data.idx - evlist->nr_entries;

		perf_evlist__splice_list_tail(evlist, &data.list, entries);

		evlist->nr_groups += data.nr_groups;

		return 0;

	}

tools/perf/util/parse-events.h

+1 −0
Original line number Diff line number Diff line
@@ -64,6 +64,7 @@ struct parse_events_term { 
struct parse_events_evlist {

	struct list_head list;

	int idx;

	int nr_groups;

};



struct parse_events_terms {