Messages in this thread Patch in this message | | | From | Namhyung Kim <> | Subject | [PATCH 14/20] perf stat: Split process_counters() | Date | Mon, 17 Oct 2022 19:02:21 -0700 |
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It'd do more processing with aggregation. Let's split the function so that it can be shared with by process_stat_round_event() too.
Acked-by: Ian Rogers <irogers@google.com> Signed-off-by: Namhyung Kim <namhyung@kernel.org> --- tools/perf/builtin-stat.c | 22 +++++++++++++--------- 1 file changed, 13 insertions(+), 9 deletions(-)
diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c index bff28a199dfd..838d29590bed 100644 --- a/tools/perf/builtin-stat.c +++ b/tools/perf/builtin-stat.c @@ -465,15 +465,19 @@ static int read_bpf_map_counters(void) return 0; } -static void read_counters(struct timespec *rs) +static int read_counters(struct timespec *rs) { - struct evsel *counter; - if (!stat_config.stop_read_counter) { if (read_bpf_map_counters() || read_affinity_counters(rs)) - return; + return -1; } + return 0; +} + +static void process_counters(void) +{ + struct evsel *counter; evlist__for_each_entry(evsel_list, counter) { if (counter->err) @@ -494,7 +498,8 @@ static void process_interval(void) perf_stat__reset_shadow_per_stat(&rt_stat); evlist__reset_aggr_stats(evsel_list); - read_counters(&rs); + if (read_counters(&rs) == 0) + process_counters(); if (STAT_RECORD) { if (WRITE_STAT_ROUND_EVENT(rs.tv_sec * NSEC_PER_SEC + rs.tv_nsec, INTERVAL)) @@ -980,7 +985,8 @@ static int __run_perf_stat(int argc, const char **argv, int run_idx) * avoid arbitrary skew, we must read all counters before closing any * group leaders. */ - read_counters(&(struct timespec) { .tv_nsec = t1-t0 }); + if (read_counters(&(struct timespec) { .tv_nsec = t1-t0 }) == 0) + process_counters(); /* * We need to keep evsel_list alive, because it's processed @@ -2099,13 +2105,11 @@ static int process_stat_round_event(struct perf_session *session, union perf_event *event) { struct perf_record_stat_round *stat_round = &event->stat_round; - struct evsel *counter; struct timespec tsh, *ts = NULL; const char **argv = session->header.env.cmdline_argv; int argc = session->header.env.nr_cmdline; - evlist__for_each_entry(evsel_list, counter) - perf_stat_process_counter(&stat_config, counter); + process_counters(); if (stat_round->type == PERF_STAT_ROUND_TYPE__FINAL) update_stats(&walltime_nsecs_stats, stat_round->time); -- 2.38.0.413.g74048e4d9e-goog
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