diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c index f4f555a67e9b..f53f449d864d 100644 --- a/tools/perf/builtin-stat.c +++ b/tools/perf/builtin-stat.c @@ -2350,6 +2350,35 @@ static int __cmd_report(int argc, const char **argv) return 0; } +static void setup_system_wide(int forks) +{ + /* + * Make system wide (-a) the default target if + * no target was specified and one of following + * conditions is met: + * + * - there's no workload specified + * - there is workload specified but all requested + * events are system wide events + */ + if (!target__none(&target)) + return; + + if (!forks) + target.system_wide = true; + else { + struct perf_evsel *counter; + + evlist__for_each_entry(evsel_list, counter) { + if (!counter->system_wide) + return; + } + + if (evsel_list->nr_entries) + target.system_wide = true; + } +} + int cmd_stat(int argc, const char **argv, const char *prefix __maybe_unused) { const char * const stat_usage[] = { @@ -2456,9 +2485,7 @@ int cmd_stat(int argc, const char **argv, const char *prefix __maybe_unused) } else if (big_num_opt == 0) /* User passed --no-big-num */ big_num = false; - /* Make system wide (-a) the default target. */ - if (!argc && target__none(&target)) - target.system_wide = true; + setup_system_wide(argc); if (run_count < 0) { pr_err("Run count must be a positive number\n"); diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c index 67a8aebc67ab..54355d3caf09 100644 --- a/tools/perf/util/parse-events.c +++ b/tools/perf/util/parse-events.c @@ -316,8 +316,9 @@ __add_event(struct list_head *list, int *idx, return NULL; (*idx)++; - evsel->cpus = cpu_map__get(cpus); - evsel->own_cpus = cpu_map__get(cpus); + evsel->cpus = cpu_map__get(cpus); + evsel->own_cpus = cpu_map__get(cpus); + evsel->system_wide = !!cpus; if (name) evsel->name = strdup(name);