From: Changbin Du <changbin...@intel.com>
If we always insert 'overhead' and 'overhead_children' as sort keys,
this make it impossible to sort as overhead (which displayed as Self)
first. This patch forbid adding any overhead* field if there is one
already given.
Signed-off-by: Changbin Du <changbin...@intel.com>
---
tools/perf/util/sort.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/tools/perf/util/sort.c b/tools/perf/util/sort.c
index b6db140..7695b54 100644
--- a/tools/perf/util/sort.c
+++ b/tools/perf/util/sort.c
@@ -2543,6 +2543,13 @@ static char *setup_overhead(char *keys)
if (sort__mode == SORT_MODE__DIFF)
return keys;
+ /*
+ * Only insert overhead && overhead_children when
+ * no overhead* field given.
+ */
+ if (strstr(keys, "overhead"))
+ return keys;
+
keys = prefix_if_not_in("overhead", keys);
if (symbol_conf.cumulate_callchain)
--
2.7.4
