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Message-Id: <1317336490-19437-10-git-send-email-acme@infradead.org>
Date: Thu, 29 Sep 2011 19:48:03 -0300
From: Arnaldo Carvalho de Melo <acme@...radead.org>
To: Ingo Molnar <mingo@...e.hu>
Cc: linux-kernel@...r.kernel.org, Jim Cromie <jim.cromie@...il.com>,
Arnaldo Carvalho de Melo <acme@...hat.com>
Subject: [PATCH 09/16] perf stat: Suppress printing std-dev when its 0
From: Jim Cromie <jim.cromie@...il.com>
For pretty output only (preserve column for cvs output), dont print
std-deviation when its 0.00. Do this based upon value, instead of
checking for --no-aggr, since the stats could conceivably be computed
over the runs on each CPU, and theres no reason to preclude that.
Link: http://lkml.kernel.org/r/1315437244-3788-4-git-send-email-jim.cromie@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
Signed-off-by: Jim Cromie <jim.cromie@...il.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
tools/perf/builtin-stat.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index af0d65b..076eda5 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -528,7 +528,7 @@ static void print_noise_pct(double total, double avg)
if (csv_output)
fprintf(output, "%s%.2f%%", csv_sep, pct);
- else
+ else if (pct)
fprintf(output, " ( +-%6.2f%% )", pct);
}
--
1.6.2.5
--
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