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authorArnaldo Carvalho de Melo <acme@redhat.com>2010-07-31 01:28:42 +0400
committerArnaldo Carvalho de Melo <acme@redhat.com>2010-07-31 01:28:42 +0400
commit591765fdaf7ea1888157f342b67b0461f2e5ed9b (patch)
tree278c5c7e219830596b03bc9ca1aa2a38e69e458e /tools/perf/util/thread.c
parent0e60836bbd392300198c5c2d918c18845428a1fe (diff)
downloadlinux-591765fdaf7ea1888157f342b67b0461f2e5ed9b.tar.xz
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/thread.c')
-rw-r--r--tools/perf/util/thread.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/tools/perf/util/thread.c b/tools/perf/util/thread.c
index 9a448b47400c..8c72d888e449 100644
--- a/tools/perf/util/thread.c
+++ b/tools/perf/util/thread.c
@@ -62,6 +62,13 @@ static struct thread *thread__new(pid_t pid)
return self;
}
+void thread__delete(struct thread *self)
+{
+ map_groups__exit(&self->mg);
+ free(self->comm);
+ free(self);
+}
+
int thread__set_comm(struct thread *self, const char *comm)
{
int err;