diff options
Diffstat (limited to 'tools/perf/builtin-stat.c')
| -rw-r--r-- | tools/perf/builtin-stat.c | 28 |
1 files changed, 21 insertions, 7 deletions
diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c index c3625ec374e0..a3c060878faa 100644 --- a/tools/perf/builtin-stat.c +++ b/tools/perf/builtin-stat.c @@ -244,11 +244,25 @@ perf_evsel__write_stat_event(struct perf_evsel *counter, u32 cpu, u32 thread, process_synthesized_event, NULL); } +static int read_single_counter(struct perf_evsel *counter, int cpu, + int thread, struct timespec *rs) +{ + if (counter->tool_event == PERF_TOOL_DURATION_TIME) { + u64 val = rs->tv_nsec + rs->tv_sec*1000000000ULL; + struct perf_counts_values *count = + perf_counts(counter->counts, cpu, thread); + count->ena = count->run = val; + count->val = val; + return 0; + } + return perf_evsel__read_counter(counter, cpu, thread); +} + /* * Read out the results of a single counter: * do not aggregate counts across CPUs in system-wide mode */ -static int read_counter(struct perf_evsel *counter) +static int read_counter(struct perf_evsel *counter, struct timespec *rs) { int nthreads = thread_map__nr(evsel_list->threads); int ncpus, cpu, thread; @@ -275,7 +289,7 @@ static int read_counter(struct perf_evsel *counter) * (via perf_evsel__read_counter) and sets threir count->loaded. */ if (!count->loaded && - perf_evsel__read_counter(counter, cpu, thread)) { + read_single_counter(counter, cpu, thread, rs)) { counter->counts->scaled = -1; perf_counts(counter->counts, cpu, thread)->ena = 0; perf_counts(counter->counts, cpu, thread)->run = 0; @@ -304,13 +318,13 @@ static int read_counter(struct perf_evsel *counter) return 0; } -static void read_counters(void) +static void read_counters(struct timespec *rs) { struct perf_evsel *counter; int ret; evlist__for_each_entry(evsel_list, counter) { - ret = read_counter(counter); + ret = read_counter(counter, rs); if (ret) pr_debug("failed to read counter %s\n", counter->name); @@ -323,11 +337,11 @@ static void process_interval(void) { struct timespec ts, rs; - read_counters(); - clock_gettime(CLOCK_MONOTONIC, &ts); diff_timespec(&rs, &ts, &ref_time); + read_counters(&rs); + if (STAT_RECORD) { if (WRITE_STAT_ROUND_EVENT(rs.tv_sec * NSEC_PER_SEC + rs.tv_nsec, INTERVAL)) pr_err("failed to write stat round event\n"); @@ -593,7 +607,7 @@ try_again: * avoid arbitrary skew, we must read all counters before closing any * group leaders. */ - read_counters(); + read_counters(&(struct timespec) { .tv_nsec = t1-t0 }); perf_evlist__close(evsel_list); return WEXITSTATUS(status); |