path: root/tools/perf/util/thread.h
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authorArnaldo Carvalho de Melo <acme@redhat.com>2010-07-30 18:28:42 -0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2010-07-30 18:28:42 -0300
commit591765fdaf7ea1888157f342b67b0461f2e5ed9b (patch)
tree278c5c7e219830596b03bc9ca1aa2a38e69e458e /tools/perf/util/thread.h
parentperf probe: Rename common fields/functions from kprobe to probe. (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 '')
1 files changed, 2 insertions, 0 deletions
diff --git a/tools/perf/util/thread.h b/tools/perf/util/thread.h
index ee6bbcf277ca..688500ff826f 100644
--- a/tools/perf/util/thread.h
+++ b/tools/perf/util/thread.h
@@ -20,6 +20,8 @@ struct thread {
struct perf_session;
+void thread__delete(struct thread *self);
int find_all_tid(int pid, pid_t ** all_tid);
int thread__set_comm(struct thread *self, const char *comm);
int thread__comm_len(struct thread *self);