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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-top.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-top.c')
| -rw-r--r-- | Documentation/perf_counter/builtin-top.c | 23 |
1 files changed, 17 insertions, 6 deletions
diff --git a/Documentation/perf_counter/builtin-top.c b/Documentation/perf_counter/builtin-top.c index 548a8da4b15b..20e5b1200959 100644 --- a/Documentation/perf_counter/builtin-top.c +++ b/Documentation/perf_counter/builtin-top.c @@ -21,6 +21,7 @@ #include "perf.h" #include "util/symbol.h" +#include "util/color.h" #include "util/util.h" #include "util/rbtree.h" #include "util/parse-options.h" @@ -253,7 +254,8 @@ static void print_sym_table(void) for (nd = rb_first(&tmp); nd; nd = rb_next(nd)) { struct sym_entry *syme = rb_entry(nd, struct sym_entry, rb_node); struct symbol *sym = (struct symbol *)(syme + 1); - float pcnt; + char *color = PERF_COLOR_NORMAL; + double pcnt; if (++printed > print_entries || syme->snap_count < count_filter) continue; @@ -261,13 +263,22 @@ static void print_sym_table(void) pcnt = 100.0 - (100.0 * ((sum_kevents - syme->snap_count) / sum_kevents)); + /* + * We color high-overhead entries in red, low-overhead + * entries in green - and keep the middle ground normal: + */ + if (pcnt >= 5.0) + color = PERF_COLOR_RED; + if (pcnt < 0.5) + color = PERF_COLOR_GREEN; + if (nr_counters == 1) - printf("%19.2f - %4.1f%% - %016llx : %s\n", - syme->weight, pcnt, sym->start, sym->name); + printf("%19.2f - ", syme->weight); else - printf("%8.1f %10ld - %4.1f%% - %016llx : %s\n", - syme->weight, syme->snap_count, - pcnt, sym->start, sym->name); + printf("%8.1f %10ld - ", syme->weight, syme->snap_count); + + color_fprintf(stdout, color, "%4.1f%%", pcnt); + printf(" - %016llx : %s\n", sym->start, sym->name); } { |