diff options
| -rw-r--r-- | tools/perf/builtin-stat.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c index 184ff95..8085509 100644 --- a/tools/perf/builtin-stat.c +++ b/tools/perf/builtin-stat.c @@ -83,6 +83,7 @@ static __u64 event_scaled[MAX_COUNTERS]; static __u64 runtime_nsecs; static __u64 walltime_nsecs; +static __u64 runtime_cycles; static void create_perf_stat_counter(int counter) { @@ -177,6 +178,9 @@ static void read_counter(int counter) if (attrs[counter].type == PERF_TYPE_SOFTWARE && attrs[counter].config == PERF_COUNT_TASK_CLOCK) runtime_nsecs = count[0]; + if (attrs[counter].type == PERF_TYPE_HARDWARE && + attrs[counter].config == PERF_COUNT_CPU_CYCLES) + runtime_cycles = count[0]; } /* @@ -214,6 +218,13 @@ static void print_counter(int counter) if (runtime_nsecs) fprintf(stderr, " # %11.3f M/sec", (double)count[0]/runtime_nsecs*1000.0); + if (runtime_cycles && + attrs[counter].type == PERF_TYPE_HARDWARE && + attrs[counter].config == PERF_COUNT_INSTRUCTIONS) { + + fprintf(stderr, " # %1.3f per cycle", + (double)count[0] / (double)runtime_cycles); + } } if (scaled) fprintf(stderr, " (scaled from %.2f%%)", |