diff options
| -rw-r--r-- | progs/perf/common.c | 18 | ||||
| -rw-r--r-- | progs/perf/common.h | 2 |
2 files changed, 20 insertions, 0 deletions
diff --git a/progs/perf/common.c b/progs/perf/common.c index 695b8a99d9d..722f4b7b454 100644 --- a/progs/perf/common.c +++ b/progs/perf/common.c @@ -113,3 +113,21 @@ PerfMeasureRate(PerfRateFunc f) } +/* Note static buffer, can only use once per printf. + */ +const char * +PerfHumanFloat( double d ) +{ + static char buf[80]; + + if (d > 1000000000.0) + snprintf(buf, sizeof(buf), "%.1f billion", d / 1000000000.0); + else if (d > 1000000.0) + snprintf(buf, sizeof(buf), "%.1f million", d / 1000000.0); + else if (d > 1000.0) + snprintf(buf, sizeof(buf), "%.1f thousand", d / 1000.0); + else + snprintf(buf, sizeof(buf), "%.1f", d); + + return buf; +} diff --git a/progs/perf/common.h b/progs/perf/common.h index 85db678c64e..fc49bbed32f 100644 --- a/progs/perf/common.h +++ b/progs/perf/common.h @@ -30,6 +30,8 @@ typedef void (*PerfRateFunc)(unsigned count); extern double PerfMeasureRate(PerfRateFunc f); +const char * +PerfHumanFloat( double d ); extern void perf_printf(const char *format, ...); |