[PATCH 04/10] perf, tools, stat: Scale values by unit before metrics

Andi Kleen
2015-12-16T00:54:41Z

From: Andi Kleen <ak@linux.intel.com>

Scale values by unit before passing them to the metrics printing functions.
This is needed for TopDown, because it needs to scale the slots correctly
by pipeline width / SMTness.

For existing metrics it shouldn't make any difference, as those generally
use events that don't have any units.

Signed-off-by: Andi Kleen <ak@linux.intel.com>
---
tools/perf/util/stat.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/tools/perf/util/stat.c b/tools/perf/util/stat.c
index 2d9d830..913d236 100644
--- a/tools/perf/util/stat.c
+++ b/tools/perf/util/stat.c
@@ -307,6 +307,7 @@ int perf_stat_process_counter(struct perf_stat_config *config,
struct perf_counts_values *aggr = &counter->counts->aggr;
struct perf_stat_evsel *ps = counter->priv;
u64 *count = counter->counts->aggr.values;
+ u64 val;
int i, ret;

aggr->val = aggr->ena = aggr->run = 0;
@@ -337,7 +338,8 @@ int perf_stat_process_counter(struct perf_stat_config *config,
/*
* Save the full runtime - to allow normalization during printout:
*/
- perf_stat__update_shadow_stats(counter, count, 0);
+ val = counter->scale * *count;
+ perf_stat__update_shadow_stats(counter, &val, 0);

return 0;
}
--
2.4.3