[PATCH v2 03/22] perf metrics: Don't scale counts going into metrics

[Ian Rogers <irogers@google.com>]

Counts are scaled prior to going into saved_value, reverse the scaling
so that metrics don't double scale values.

Signed-off-by: Ian Rogers <irogers@google.com>
---
 tools/perf/util/stat-shadow.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/tools/perf/util/stat-shadow.c b/tools/perf/util/stat-shadow.c
index 9e1eddeff21b..b5cedd37588f 100644
--- a/tools/perf/util/stat-shadow.c
+++ b/tools/perf/util/stat-shadow.c
@@ -865,11 +865,16 @@ static int prepare_metric(struct evsel **metric_events,
 			if (!v)
 				break;
 			stats = &v->stats;
-			scale = 1.0;
+			/*
+			 * If an event was scaled during stat gathering, reverse
+			 * the scale before computing the metric.
+			 */
+			scale = 1.0 / metric_events[i]->scale;
+
 			source_count = evsel__source_count(metric_events[i]);
 
 			if (v->metric_other)
-				metric_total = v->metric_total;
+				metric_total = v->metric_total * scale;
 		}
 		n = strdup(evsel__metric_id(metric_events[i]));
 		if (!n)
-- 
2.38.0.rc1.362.ged0d419d3c-goog