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Groups > linux.kernel > #1400522

[PATCH 1/3] perf diff: Fix indentation of stalled backend cycle

From Namhyung Kim <namhyung@kernel.org>
Newsgroups linux.kernel
Subject [PATCH 1/3] perf diff: Fix indentation of stalled backend cycle
Date 2016-05-13 08:10 +0200
Message-ID <ryesp-5QZ-3@gated-at.bofh.it> (permalink)
Organization linux.* mail to news gateway

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The commit 140aeadc1fb5 ("perf stat: Abstract stat metrics printing")
changed way to print shadow metrics, but it missed to update the width
of stalled backend cycles event to 7.2% like others.  This resulted in
misaligned output like below:

 Performance counter stats for 'pwd':

          0.638313      task-clock (msec)         #    0.567 CPUs utilized
                 0      context-switches          #    0.000 K/sec
                 0      cpu-migrations            #    0.000 K/sec
                54      page-faults               #    0.085 M/sec
           885,600      cycles                    #    1.387 GHz
           558,438      stalled-cycles-frontend   #   63.06% frontend cycles idle
           431,355      stalled-cycles-backend    #  48.71% backend cycles idle
           674,956      instructions              #    0.76  insn per cycle
                                                  #    0.83  stalled cycles per insn
           130,380      branches                  #  204.257 M/sec
     <not counted>      branch-misses

       0.001125426 seconds time elapsed

Cc: Andi Kleen <andi@firstfloor.org>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/util/stat-shadow.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/util/stat-shadow.c b/tools/perf/util/stat-shadow.c
index fdb71961143e..61200fcac5ef 100644
--- a/tools/perf/util/stat-shadow.c
+++ b/tools/perf/util/stat-shadow.c
@@ -188,7 +188,7 @@ static void print_stalled_cycles_backend(int cpu,
 
 	color = get_ratio_color(GRC_STALLED_CYCLES_BE, ratio);
 
-	out->print_metric(out->ctx, color, "%6.2f%%", "backend cycles idle", ratio);
+	out->print_metric(out->ctx, color, "%7.2f%%", "backend cycles idle", ratio);
 }
 
 static void print_branch_misses(int cpu,
-- 
2.8.2

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[PATCH 1/3] perf diff: Fix indentation of stalled backend cycle Namhyung Kim <namhyung@kernel.org> - 2016-05-13 08:10 +0200
  [PATCH 3/3] perf stat: Use cpu-clock event for cpu targets Namhyung Kim <namhyung@kernel.org> - 2016-05-13 08:10 +0200
    [tip:perf/urgent] perf stat: Use cpu-clock event for cpu targets tip-bot for Namhyung Kim <tipbot@zytor.com> - 2016-05-20 08:50 +0200
  Re: [PATCH 1/3] perf diff: Fix indentation of stalled backend cycle Arnaldo Carvalho de Melo <acme@kernel.org> - 2016-05-13 13:50 +0200
    Re: [PATCH 1/3] perf diff: Fix indentation of stalled backend cycle Namhyung Kim <namhyung@kernel.org> - 2016-05-13 15:50 +0200
      Re: [PATCH 1/3] perf diff: Fix indentation of stalled backend cycle Arnaldo Carvalho de Melo <acme@kernel.org> - 2016-05-13 20:00 +0200
  Re: [PATCH 1/3] perf diff: Fix indentation of stalled backend cycle Andi Kleen <andi@firstfloor.org> - 2016-05-13 16:10 +0200
  [tip:perf/urgent] perf stat: Fix indentation of stalled backend  cycle tip-bot for Namhyung Kim <tipbot@zytor.com> - 2016-05-20 08:50 +0200

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