perf stat: Add per-core aggregation
[linux-3.10.git] / tools / perf / builtin-stat.c
index 6f6ea93..7e910ba 100644 (file)
@@ -80,6 +80,7 @@ enum aggr_mode {
        AGGR_NONE,
        AGGR_GLOBAL,
        AGGR_SOCKET,
+       AGGR_CORE,
 };
 
 static int                     run_count                       =  1;
@@ -384,6 +385,9 @@ static void print_interval(void)
                case AGGR_SOCKET:
                        fprintf(output, "#           time socket cpus             counts events\n");
                        break;
+               case AGGR_CORE:
+                       fprintf(output, "#           time core         cpus             counts events\n");
+                       break;
                case AGGR_NONE:
                        fprintf(output, "#           time CPU                 counts events\n");
                        break;
@@ -397,6 +401,7 @@ static void print_interval(void)
                num_print_interval = 0;
 
        switch (aggr_mode) {
+       case AGGR_CORE:
        case AGGR_SOCKET:
                print_aggr(prefix);
                break;
@@ -566,13 +571,23 @@ static void print_noise(struct perf_evsel *evsel, double avg)
        print_noise_pct(stddev_stats(&ps->res_stats[0]), avg);
 }
 
-static void aggr_printout(struct perf_evsel *evsel, int cpu, int nr)
+static void aggr_printout(struct perf_evsel *evsel, int id, int nr)
 {
        switch (aggr_mode) {
+       case AGGR_CORE:
+               fprintf(output, "S%d-C%*d%s%*d%s",
+                       cpu_map__id_to_socket(id),
+                       csv_output ? 0 : -8,
+                       cpu_map__id_to_cpu(id),
+                       csv_sep,
+                       csv_output ? 0 : 4,
+                       nr,
+                       csv_sep);
+               break;
        case AGGR_SOCKET:
                fprintf(output, "S%*d%s%*d%s",
                        csv_output ? 0 : -5,
-                       cpu,
+                       id,
                        csv_sep,
                        csv_output ? 0 : 4,
                        nr,
@@ -581,7 +596,7 @@ static void aggr_printout(struct perf_evsel *evsel, int cpu, int nr)
        case AGGR_NONE:
                fprintf(output, "CPU%*d%s",
                        csv_output ? 0 : -4,
-                       perf_evsel__cpus(evsel)->map[cpu], csv_sep);
+                       perf_evsel__cpus(evsel)->map[id], csv_sep);
                break;
        case AGGR_GLOBAL:
        default:
@@ -1095,6 +1110,7 @@ static void print_stat(int argc, const char **argv)
        }
 
        switch (aggr_mode) {
+       case AGGR_CORE:
        case AGGR_SOCKET:
                print_aggr(NULL);
                break;
@@ -1163,6 +1179,13 @@ static int perf_stat_init_aggr_mode(void)
                }
                aggr_get_id = cpu_map__get_socket;
                break;
+       case AGGR_CORE:
+               if (cpu_map__build_core_map(evsel_list->cpus, &aggr_map)) {
+                       perror("cannot build core map");
+                       return -1;
+               }
+               aggr_get_id = cpu_map__get_core;
+               break;
        case AGGR_NONE:
        case AGGR_GLOBAL:
        default:
@@ -1372,6 +1395,8 @@ int cmd_stat(int argc, const char **argv, const char *prefix __maybe_unused)
                    "print counts at regular interval in ms (>= 100)"),
        OPT_SET_UINT(0, "per-socket", &aggr_mode,
                     "aggregate counts per processor socket", AGGR_SOCKET),
+       OPT_SET_UINT(0, "per-core", &aggr_mode,
+                    "aggregate counts per physical processor core", AGGR_CORE),
        OPT_END()
        };
        const char * const stat_usage[] = {