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| author | Ingo Molnar <mingo@elte.hu> | 2009-06-04 15:19:47 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-06-04 15:28:11 +0200 |
| commit | 8fc0321f1ad0ffef969056dda91b453bbd7a494d (patch) | |
| tree | 8931ad2c6582a2f59930301c3c099aa1532bb14c /Documentation/perf_counter/builtin-report.c | |
| parent | 71dd8945d8d827ab101cd287f9480ef22fc7c1b6 (diff) | |
| download | lwn-8fc0321f1ad0ffef969056dda91b453bbd7a494d.tar.gz lwn-8fc0321f1ad0ffef969056dda91b453bbd7a494d.zip | |
perf_counter tools: Add color terminal output support
Add Git's color printing library to util/color.[ch].
Add it to perf report, with a trivial example to print high-overhead
entries in red, low-overhead entries in green.
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'Documentation/perf_counter/builtin-report.c')
| -rw-r--r-- | Documentation/perf_counter/builtin-report.c | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/Documentation/perf_counter/builtin-report.c b/Documentation/perf_counter/builtin-report.c index e930b4e02335..7beedc6effa4 100644 --- a/Documentation/perf_counter/builtin-report.c +++ b/Documentation/perf_counter/builtin-report.c @@ -9,6 +9,7 @@ #include "util/util.h" +#include "util/color.h" #include "util/list.h" #include "util/cache.h" #include "util/rbtree.h" @@ -548,7 +549,19 @@ hist_entry__fprintf(FILE *fp, struct hist_entry *self, uint64_t total_samples) size_t ret; if (total_samples) { - ret = fprintf(fp, " %6.2f%%", + double percent = self->count * 100.0 / total_samples; + char *color = PERF_COLOR_NORMAL; + + /* + * We color high-overhead entries in red, low-overhead + * entries in green - and keep the middle ground normal: + */ + if (percent >= 5.0) + color = PERF_COLOR_RED; + if (percent < 0.5) + color = PERF_COLOR_GREEN; + + ret = color_fprintf(fp, color, " %6.2f%%", (self->count * 100.0) / total_samples); } else ret = fprintf(fp, "%12d ", self->count); |