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author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2010-07-30 18:28:42 -0300 |
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committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2010-07-30 18:28:42 -0300 |
commit | 591765fdaf7ea1888157f342b67b0461f2e5ed9b (patch) | |
tree | 278c5c7e219830596b03bc9ca1aa2a38e69e458e /tools/perf/util/map.h | |
parent | 0e60836bbd392300198c5c2d918c18845428a1fe (diff) |
perf tools: Release thread resources on PERF_RECORD_EXIT
For long running sessions with many threads with short lifetimes the
amount of memory that the buildid process takes is too much.
Since we don't have hist_entries that may be pointing to them, we can
just release the resources associated with each thread when the exit
(PERF_RECORD_EXIT) event is received.
For normal processing we need to annotate maps with hits, and thus
hist_entries pointing to it and drop the ones that had none. Will be
done in a followup patch.
Cc: David S. Miller <davem@davemloft.net>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Tom Zanussi <tzanussi@gmail.com>
LKML-Reference: <new-submission>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/map.h')
-rw-r--r-- | tools/perf/util/map.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/tools/perf/util/map.h b/tools/perf/util/map.h index 3b2f706c0ba..20eba420dda 100644 --- a/tools/perf/util/map.h +++ b/tools/perf/util/map.h @@ -127,6 +127,7 @@ size_t __map_groups__fprintf_maps(struct map_groups *self, void maps__insert(struct rb_root *maps, struct map *map); struct map *maps__find(struct rb_root *maps, u64 addr); void map_groups__init(struct map_groups *self); +void map_groups__exit(struct map_groups *self); int map_groups__clone(struct map_groups *self, struct map_groups *parent, enum map_type type); size_t map_groups__fprintf(struct map_groups *self, int verbose, FILE *fp); |