From: Jim Cromie <jim.cromie@gmail.com>
To: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
Cc: linux-kernel@vger.kernel.org, Jim Cromie <jim.cromie@gmail.com>
Subject: [PATCH 3/5] perf stat: suppress printing std-dev when its 0
Date: Wed, 7 Sep 2011 17:14:02 -0600 [thread overview]
Message-ID: <1315437244-3788-4-git-send-email-jim.cromie@gmail.com> (raw)
In-Reply-To: <1315437244-3788-1-git-send-email-jim.cromie@gmail.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.
Signed-off-by: Jim Cromie <jim.cromie@gmail.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 c6e47d2..660bed1 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);
}
--
1.7.4.4
next prev parent reply other threads:[~2011-09-07 23:14 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-05-21 8:56 [PATCH 0/2] perf stat: add -l <N> option to redirect stderr elsewhere Jim Cromie
2011-05-21 8:56 ` [PATCH 1/2] " Jim Cromie
2011-05-21 10:34 ` Ingo Molnar
2011-05-21 20:41 ` Arnaldo Carvalho de Melo
2011-09-01 21:58 ` Jim Cromie
2011-09-02 14:35 ` Arnaldo Carvalho de Melo
2011-09-02 18:02 ` Arnaldo Carvalho de Melo
2011-09-02 18:04 ` Jim Cromie
2011-09-02 18:58 ` Arnaldo Carvalho de Melo
2011-09-07 23:13 ` [patch 0/5] perf stat --log-fd=N Jim Cromie
2011-09-07 23:14 ` [PATCH 1/5] perf stat: add --log-fd <N> option to redirect stderr elsewhere Jim Cromie
2011-09-07 23:14 ` [PATCH 2/5] perf-stat: fix +- nan% in --no-aggr runs Jim Cromie
2011-09-07 23:14 ` Jim Cromie [this message]
2011-09-07 23:14 ` [PATCH 4/5] perf stat: allow tab as cvs delimiter Jim Cromie
2011-09-07 23:14 ` [PATCH 5/5] perf stat: fix spelling in comment Jim Cromie
2011-05-21 8:56 ` [PATCH 2/2] dont commify big numbers by default, let -B do it Jim Cromie
2011-05-21 10:33 ` Ingo Molnar
2011-05-24 22:05 ` Jim Cromie
2011-05-24 22:11 ` [PATCH] add --simple output mode to perf-stat, based upon csv-output Jim Cromie
2011-05-25 12:44 ` [PATCH 2/2] dont commify big numbers by default, let -B do it Ingo Molnar
2011-05-26 19:41 ` Jim Cromie
2011-05-26 19:50 ` [PATCH 0/3] perf-stat: refactor print/formatting into print-ops Jim Cromie
2011-05-26 19:50 ` [PATCH 1/3] perf-stat: refactor print/formatting into print-ops for pretty, csv Jim Cromie
2011-05-26 19:50 ` [PATCH 2/3] perf-stat: fix +- nan% in -Aa runs Jim Cromie
2011-05-26 19:50 ` [PATCH 3/3] perf-stat: clean up <no count> handling, CPUx prefixing Jim Cromie
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