Messages in this thread Patch in this message | | | From | Arnaldo Carvalho de Melo <> | Subject | [PATCH 06/29] perf tools: Compare hists comm by addresses | Date | Mon, 4 Nov 2013 14:58:44 -0300 |
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From: Frederic Weisbecker <fweisbec@gmail.com>
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 <fweisbec@gmail.com> Tested-by: Jiri Olsa <jolsa@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1381468543-25334-8-git-send-email-namhyung@kernel.org Signed-off-by: Namhyung Kim <namhyung@kernel.org> --- 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 835e8bdd869f..bf91d0e5c16e 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 -- 1.8.1.4
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