1 files changed, 32 insertions, 8 deletions

diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index 806a9998fcd5..21c025222496 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -390,6 +390,9 @@ static void nsec_printout(int cpu, struct perf_evsel *evsel, double avg)
 
         fprintf(stderr, fmt, cpustr, msecs, csv_sep, event_name(evsel));
 
+        if (evsel->cgrp)
+                fprintf(stderr, "%s%s", csv_sep, evsel->cgrp->name);
+
         if (csv_output)
                 return;
 
@@ -420,6 +423,9 @@ static void abs_printout(int cpu, struct perf_evsel *evsel, double avg)
 
         fprintf(stderr, fmt, cpustr, avg, csv_sep, event_name(evsel));
 
+        if (evsel->cgrp)
+                fprintf(stderr, "%s%s", csv_sep, evsel->cgrp->name);
+
         if (csv_output)
                 return;
 
@@ -460,9 +466,17 @@ static void print_counter_aggr(struct perf_evsel *counter)
         int scaled = counter->counts->scaled;
 
         if (scaled == -1) {
-                fprintf(stderr, "%*s%s%-24s\n",
+                fprintf(stderr, "%*s%s%*s",
                         csv_output ? 0 : 18,
-                        "<not counted>", csv_sep, event_name(counter));
+                        "<not counted>",
+                        csv_sep,
+                        csv_output ? 0 : -24,
+                        event_name(counter));
+
+                if (counter->cgrp)
+                        fprintf(stderr, "%s%s", csv_sep, counter->cgrp->name);
+
+                fputc('\n', stderr);
                 return;
         }
 
@@ -487,7 +501,6 @@ static void print_counter_aggr(struct perf_evsel *counter)
                 fprintf(stderr, "  (scaled from %.2f%%)",
                                 100 * avg_running / avg_enabled);
         }
-
         fprintf(stderr, "\n");
 }
 
@@ -505,14 +518,18 @@ static void print_counter(struct perf_evsel *counter)
                 ena = counter->counts->cpu[cpu].ena;
                 run = counter->counts->cpu[cpu].run;
                 if (run == 0 || ena == 0) {
-                        fprintf(stderr, "CPU%*d%s%*s%s%-24s",
+                        fprintf(stderr, "CPU%*d%s%*s%s%*s",
                                 csv_output ? 0 : -4,
                                 evsel_list->cpus->map[cpu], csv_sep,
                                 csv_output ? 0 : 18,
                                 "<not counted>", csv_sep,
+                                csv_output ? 0 : -24,
                                 event_name(counter));
 
-                        fprintf(stderr, "\n");
+                        if (counter->cgrp)
+                                fprintf(stderr, "%s%s", csv_sep, counter->cgrp->name);
+
+                        fputc('\n', stderr);
                         continue;
                 }
 
@@ -529,7 +546,7 @@ static void print_counter(struct perf_evsel *counter)
                                         100.0 * run / ena);
                         }
                 }
-                fprintf(stderr, "\n");
+                fputc('\n', stderr);
         }
 }
 
@@ -642,6 +659,9 @@ static const struct option options[] = {
                     "disable CPU count aggregation"),
         OPT_STRING('x', "field-separator", &csv_sep, "separator",
                    "print counts with custom separator"),
+        OPT_CALLBACK('G', "cgroup", &evsel_list, "name",
+                     "monitor event in cgroup name only",
+                     parse_cgroups),
         OPT_END()
 };
 
@@ -682,9 +702,13 @@ int cmd_stat(int argc, const char **argv, const char *prefix __used)
         if (run_count <= 0)
                 usage_with_options(stat_usage, options);
 
-        /* no_aggr is for system-wide only */
-        if (no_aggr && !system_wide)
+        /* no_aggr, cgroup are for system-wide only */
+        if ((no_aggr || nr_cgroups) && !system_wide) {
+                fprintf(stderr, "both cgroup and no-aggregation "
+                        "modes only available in system-wide mode\n");
+
                 usage_with_options(stat_usage, options);
+        }
 
         /* Set attrs and nr_counters if no event is selected and !null_run */
         if (!null_run && !evsel_list->nr_entries) {