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perf diff: Display empty space for non paired samples 

Currently in 'Baseline' and 'Period Base' columns zero values are
displayed in case no pair is found for the sample. This might be
confusing, using empty space instead.

Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1349448287-18919-9-git-send-email-jolsa@redhat.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Jiri Olsa 2012-10-05 16:44:47 +02:00 committed by Arnaldo Carvalho de Melo
parent d88c48f9b5
commit 6e92349d5a
1 changed files with 8 additions and 2 deletions
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10
tools/perf/ui/hist.c
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@ -179,7 +179,10 @@ static int hpp__color_baseline(struct perf_hpp *hpp, struct hist_entry *he)
{
double percent = baseline_percent(he);
return percent_color_snprintf(hpp->buf, hpp->size, " %6.2f%%", percent);
if (he->pair)
return percent_color_snprintf(hpp->buf, hpp->size, " %6.2f%%", percent);
else
return scnprintf(hpp->buf, hpp->size, " ");
}
static int hpp__entry_baseline(struct perf_hpp *hpp, struct hist_entry *he)
@ -187,7 +190,10 @@ static int hpp__entry_baseline(struct perf_hpp *hpp, struct hist_entry *he)
double percent = baseline_percent(he);
const char *fmt = symbol_conf.field_sep ? "%.2f" : " %6.2f%%";
return scnprintf(hpp->buf, hpp->size, fmt, percent);
if (he->pair || symbol_conf.field_sep)
return scnprintf(hpp->buf, hpp->size, fmt, percent);
else
return scnprintf(hpp->buf, hpp->size, " ");
}
static int hpp__header_samples(struct perf_hpp *hpp)