linux-kernel - [tip:perf/core] perf stat: Align scaled output of cpu-clock

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Date:	Tue, 7 Feb 2012 11:39:23 -0800
From:	tip-bot for Namhyung Kim <namhyung.kim@....com>
To:	linux-tip-commits@...r.kernel.org
Cc:	acme@...hat.com, linux-kernel@...r.kernel.org, paulus@...ba.org,
	hpa@...or.com, mingo@...hat.com, a.p.zijlstra@...llo.nl,
	namhyung.kim@....com, namhyung@...il.com, tglx@...utronix.de,
	mingo@...e.hu
Subject: [tip:perf/core] perf stat: Align scaled output of cpu-clock

Commit-ID:  9dac6a29e0ce0cd9dec497baa123e216b00b525d
Gitweb:     http://git.kernel.org/tip/9dac6a29e0ce0cd9dec497baa123e216b00b525d
Author:     Namhyung Kim <namhyung.kim@....com>
AuthorDate: Mon, 6 Feb 2012 16:44:45 +0900
Committer:  Arnaldo Carvalho de Melo <acme@...hat.com>
CommitDate: Mon, 6 Feb 2012 19:17:39 -0200

perf stat: Align scaled output of cpu-clock

The output of cpu-clock event is controlled in nsec_printout(),
but its alignment was broken:

 Performance counter stats for 'sleep 1':

         6,038,774 instructions              #    0.00  insns per cycle
               180 faults                    #    0.007 K/sec                   [99.95%]
         1,282,201 branches                  #    0.053 M/sec                   [99.84%]
      24126.221811 cpu-clock                 [99.62%]
      24121.689540 task-clock                #   24.098 CPUs utilized           [99.52%]

       1.001001017 seconds time elapsed

This patch fixes this:

 Performance counter stats for 'sleep 1':

        13,540,843 instructions              #    0.00  insns per cycle
               180 faults                    #    0.007 K/sec                   [99.94%]
         2,875,386 branches                  #    0.119 M/sec                   [99.82%]
      24144.221137 cpu-clock                                                    [99.61%]
      24133.515366 task-clock                #   24.109 CPUs utilized           [99.52%]

       1.001020946 seconds time elapsed

Cc: Ingo Molnar <mingo@...e.hu>
Cc: Namhyung Kim <namhyung@...il.com>
Cc: Paul Mackerras <paulus@...ba.org>
Cc: Peter Zijlstra <a.p.zijlstra@...llo.nl>
Link: http://lkml.kernel.org/r/1328514285-26232-2-git-send-email-namhyung.kim@lge.com
Signed-off-by: Namhyung Kim <namhyung.kim@....com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
 tools/perf/builtin-stat.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index 32d930e..d14b37a 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -576,6 +576,8 @@ static void nsec_printout(int cpu, struct perf_evsel *evsel, double avg)
 	if (perf_evsel__match(evsel, SOFTWARE, SW_TASK_CLOCK))
 		fprintf(output, " # %8.3f CPUs utilized          ",
 			avg / avg_stats(&walltime_nsecs_stats));
+	else
+		fprintf(output, "                                   ");
 }
 
 /* used for get_ratio_color() */
--
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