Commit-ID:  fedd63d3cdc9004df43b02df5c874b8957992fe8
Gitweb:     http://git.kernel.org/tip/fedd63d3cdc9004df43b02df5c874b8957992fe8
Author:     Frederic Weisbecker <[email protected]>
AuthorDate: Wed, 11 Sep 2013 17:18:09 +0200
Committer:  Arnaldo Carvalho de Melo <[email protected]>
CommitDate: Mon, 4 Nov 2013 12:14:59 -0300

perf tools: Compare hists comm by addresses

Now that comm strings are allocated only once and refcounted to be shared
among threads, these can now be safely compared by addresses. This
should remove most hists collapses on post processing.

Signed-off-by: Frederic Weisbecker <[email protected]>
Tested-by: Jiri Olsa <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: David Ahern <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Arnaldo Carvalho de Melo <[email protected]>
Cc: Stephane Eranian <[email protected]>
Link: 
http://lkml.kernel.org/r/[email protected]
Signed-off-by: Namhyung Kim <[email protected]>
---
 tools/perf/util/sort.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/tools/perf/util/sort.c b/tools/perf/util/sort.c
index 835e8bd..bf91d0e 100644
--- a/tools/perf/util/sort.c
+++ b/tools/perf/util/sort.c
@@ -80,7 +80,8 @@ struct sort_entry sort_thread = {
 static int64_t
 sort__comm_cmp(struct hist_entry *left, struct hist_entry *right)
 {
-       return right->thread->tid - left->thread->tid;
+       /* Compare the addr that should be unique among comm */
+       return thread__comm_str(right->thread) - thread__comm_str(left->thread);
 }
 
 static int64_t
--
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