diff options
Diffstat (limited to 'tools/perf/builtin-stat.c')
| -rw-r--r-- | tools/perf/builtin-stat.c | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c index cdcd058fac0..52c176cc683 100644 --- a/tools/perf/builtin-stat.c +++ b/tools/perf/builtin-stat.c @@ -353,8 +353,11 @@ static void calc_avg(void) event_res_avg[j]+1, event_res[i][j]+1); update_avg("counter/2", j, event_res_avg[j]+2, event_res[i][j]+2); - update_avg("scaled", j, - event_scaled_avg + j, event_scaled[i]+j); + if (event_scaled[i][j] != -1) + update_avg("scaled", j, + event_scaled_avg + j, event_scaled[i]+j); + else + event_scaled_avg[j] = -1; } } runtime_nsecs_avg /= run_count; @@ -420,9 +423,13 @@ static void print_stat(int argc, const char **argv) fprintf(stderr, "\n"); - fprintf(stderr, " %14.9f seconds time elapsed.\n", + fprintf(stderr, " %14.9f seconds time elapsed", (double)walltime_nsecs_avg/1e9); - fprintf(stderr, "\n"); + if (run_count > 1) { + fprintf(stderr, " ( +- %7.3f%% )", + 100.0*(double)walltime_nsecs_noise/(double)walltime_nsecs_avg); + } + fprintf(stderr, "\n\n"); } static volatile int signr = -1; |