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Message-Id: <1461787251-6702-8-git-send-email-andi@firstfloor.org>
Date: Wed, 27 Apr 2016 13:00:47 -0700
From: Andi Kleen <andi@...stfloor.org>
To: acme@...nel.org
Cc: peterz@...radead.org, jolsa@...nel.org,
linux-kernel@...r.kernel.org, Andi Kleen <ak@...ux.intel.com>
Subject: [PATCH 07/11] perf, tools, stat: Avoid fractional digits for integer scales
From: Andi Kleen <ak@...ux.intel.com>
When the scaling factor is a full integer don't display fractional
digits. This avoids unnecessary .00 output for topdown metrics
with scale factors.
v2: Remove redundant check.
Signed-off-by: Andi Kleen <ak@...ux.intel.com>
---
tools/perf/builtin-stat.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index 447a434d23bc..46c268eb123b 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -66,6 +66,7 @@
#include <stdlib.h>
#include <sys/prctl.h>
#include <locale.h>
+#include <math.h>
#define DEFAULT_SEPARATOR " "
#define CNTR_NOT_SUPPORTED "<not supported>"
@@ -978,12 +979,12 @@ static void abs_printout(int id, int nr, struct perf_evsel *evsel, double avg)
const char *fmt;
if (csv_output) {
- fmt = sc != 1.0 ? "%.2f%s" : "%.0f%s";
+ fmt = floor(sc) != sc ? "%.2f%s" : "%.0f%s";
} else {
if (big_num)
- fmt = sc != 1.0 ? "%'18.2f%s" : "%'18.0f%s";
+ fmt = floor(sc) != sc ? "%'18.2f%s" : "%'18.0f%s";
else
- fmt = sc != 1.0 ? "%18.2f%s" : "%18.0f%s";
+ fmt = floor(sc) != sc ? "%18.2f%s" : "%18.0f%s";
}
aggr_printout(evsel, id, nr);
--
2.5.5
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