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| author |   Frederic Weisbecker <fweisbec@gmail.com> | 2009-07-02 20:14:34 +0200 |
|---|---|---|
| committer |   Ingo Molnar <mingo@elte.hu> | 2009-07-02 21:38:37 +0200 |
| commit | 1e11fd82d247e4e48a1d6c49402214434538d3fd (patch) | |
| tree | 7ac435b0be559c113987a64126559ea9b41627dc /tools/perf/util | |
| parent | perf_counter tools: Set the minimum percent for callchains to be displayed (diff) | |
| download | linux-dev-1e11fd82d247e4e48a1d6c49402214434538d3fd.tar.xz linux-dev-1e11fd82d247e4e48a1d6c49402214434538d3fd.zip | |
perf_counter tools: Provide helper to print percents color
Among perf annotate, perf report and perf top, we can find the
common colored printing of percents according to the following
rules:
High overhead = > 5%, colored in red
Mid overhead = > 0.5%, colored in green
Low overhead = < 0.5%, default color
Factorize these multiple checks in a single function named
percent_color_fprintf() and also provide a get_percent_color()
for sites which print percentages and other things at the same
time.
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Anton Blanchard <anton@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
LKML-Reference: <1246558475-10624-2-git-send-email-fweisbec@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'tools/perf/util')
| -rw-r--r-- | tools/perf/util/color.c | 27 | ||||
| -rw-r--r-- | tools/perf/util/color.h | 5 |
2 files changed, 32 insertions, 0 deletions
diff --git a/tools/perf/util/color.c b/tools/perf/util/color.c index 26f82318b86b..90a044d1fe7d 100644 --- a/tools/perf/util/color.c +++ b/tools/perf/util/color.c @@ -242,4 +242,31 @@ int color_fwrite_lines(FILE *fp, const char *color, return 0; } +char *get_percent_color(double percent) +{ + char *color = PERF_COLOR_NORMAL; + + /* + * We color high-overhead entries in red, mid-overhead + * entries in green - and keep the low overhead places + * normal: + */ + if (percent >= MIN_RED) + color = PERF_COLOR_RED; + else { + if (percent > MIN_GREEN) + color = PERF_COLOR_GREEN; + } + return color; +} +int percent_color_fprintf(FILE *fp, const char *fmt, double percent) +{ + int r; + char *color; + + color = get_percent_color(percent); + r = color_fprintf(fp, color, fmt, percent); + + return r; +} diff --git a/tools/perf/util/color.h b/tools/perf/util/color.h index 5abfd379582b..706cec50bd25 100644 --- a/tools/perf/util/color.h +++ b/tools/perf/util/color.h @@ -15,6 +15,9 @@ #define PERF_COLOR_CYAN "\033[36m" #define PERF_COLOR_BG_RED "\033[41m" +#define MIN_GREEN 0.5 +#define MIN_RED 5.0 + /* * This variable stores the value of color.ui */ @@ -32,5 +35,7 @@ void color_parse_mem(const char *value, int len, const char *var, char *dst); int color_fprintf(FILE *fp, const char *color, const char *fmt, ...); int color_fprintf_ln(FILE *fp, const char *color, const char *fmt, ...); int color_fwrite_lines(FILE *fp, const char *color, size_t count, const char *buf); +int percent_color_fprintf(FILE *fp, const char *fmt, double percent); +char *get_percent_color(double percent); #endif /* COLOR_H */ |