From: Weilin Wang <weilin.wang@intel.com>

Add a cmd option to allow user to choose this new metric grouping method.

$ perf stat -M TopdownL1 -a --hardware-grouping

Reviewed-by: Ian Rogers <irogers@google.com>
Signed-off-by: Weilin Wang <weilin.wang@intel.com>
---
 tools/perf/builtin-stat.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index c4a5f0984295..8c33e3f8bc80 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -1259,6 +1259,8 @@ static struct option stat_options[] = {
 		       "don't try to share events between metrics in a group"),
 	OPT_BOOLEAN(0, "metric-no-threshold", &stat_config.metric_no_threshold,
 		       "disable adding events for the metric threshold calculation"),
+	OPT_BOOLEAN(0, "hardware-grouping", &stat_config.hardware_aware_grouping,
+				"Use hardware aware metric grouping method"),
 	OPT_BOOLEAN(0, "topdown", &topdown_run,
 			"measure top-down statistics"),
 	OPT_UINTEGER(0, "td-level", &stat_config.topdown_level,
-- 
2.42.0