diff options
Diffstat (limited to 'tools/perf/ui/hist.c')
| -rw-r--r-- | tools/perf/ui/hist.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/tools/perf/ui/hist.c b/tools/perf/ui/hist.c index f5a1e4f6526..1b633a4b5c4 100644 --- a/tools/perf/ui/hist.c +++ b/tools/perf/ui/hist.c @@ -266,6 +266,33 @@ static int hpp__entry_delta(struct perf_hpp *hpp, struct hist_entry *he) return scnprintf(hpp->buf, hpp->size, fmt, buf); } +static int hpp__header_ratio(struct perf_hpp *hpp) +{ + const char *fmt = symbol_conf.field_sep ? "%s" : "%14s"; + + return scnprintf(hpp->buf, hpp->size, fmt, "Ratio"); +} + +static int hpp__width_ratio(struct perf_hpp *hpp __maybe_unused) +{ + return 14; +} + +static int hpp__entry_ratio(struct perf_hpp *hpp, struct hist_entry *he) +{ + struct hist_entry *pair = he->pair; + double new_period = he->stat.period; + double old_period = pair ? pair->stat.period : 0; + double ratio = pair ? new_period / old_period : 0; + const char *fmt = symbol_conf.field_sep ? "%s" : "%14s"; + char buf[32] = " "; + + if (ratio > 0.0) + scnprintf(buf, sizeof(buf), "%+14.6F", ratio); + + return scnprintf(hpp->buf, hpp->size, fmt, buf); +} + static int hpp__header_displ(struct perf_hpp *hpp) { return scnprintf(hpp->buf, hpp->size, "Displ."); @@ -311,6 +338,7 @@ struct perf_hpp_fmt perf_hpp__format[] = { { .cond = false, HPP__PRINT_FNS(samples) }, { .cond = false, HPP__PRINT_FNS(period) }, { .cond = false, HPP__PRINT_FNS(delta) }, + { .cond = false, HPP__PRINT_FNS(ratio) }, { .cond = false, HPP__PRINT_FNS(displ) } }; |