diff options
Diffstat (limited to 'tools/perf/util/annotate.c')
| -rw-r--r-- | tools/perf/util/annotate.c | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c index 3a428d7c59b9..b956bb7eabcf 100644 --- a/tools/perf/util/annotate.c +++ b/tools/perf/util/annotate.c @@ -17,6 +17,7 @@ #include "config.h" #include "cache.h" #include "symbol.h" +#include "units.h" #include "debug.h" #include "annotate.h" #include "evsel.h" @@ -2597,6 +2598,43 @@ out_free_offsets: return -1; } +int __annotation__scnprintf_samples_period(struct annotation *notes, + char *bf, size_t size, + struct perf_evsel *evsel, + bool show_freq) +{ + const char *ev_name = perf_evsel__name(evsel); + char ref[30] = " show reference callgraph, "; + char sample_freq_str[64] = ""; + unsigned long nr_samples = 0; + int nr_members = 1; + bool enable_ref = false; + u64 nr_events = 0; + char unit; + int i; + + if (perf_evsel__is_group_event(evsel)) + nr_members = evsel->nr_members; + + for (i = 0; i < nr_members; i++) { + struct sym_hist *ah = annotation__histogram(notes, evsel->idx + i); + + nr_samples += ah->nr_samples; + nr_events += ah->period; + } + + if (symbol_conf.show_ref_callgraph && strstr(ev_name, "call-graph=no")) + enable_ref = true; + + if (show_freq) + scnprintf(sample_freq_str, sizeof(sample_freq_str), " %d Hz,", evsel->attr.sample_freq); + + nr_samples = convert_unit(nr_samples, &unit); + return scnprintf(bf, size, "Samples: %lu%c of event%s '%s',%s%sEvent count (approx.): %" PRIu64, + nr_samples, unit, evsel->nr_members > 1 ? "s" : "", + ev_name, sample_freq_str, enable_ref ? ref : " ", nr_events); +} + #define ANNOTATION__CFG(n) \ { .name = #n, .value = &annotation__default_options.n, } |
