diff options
Diffstat (limited to 'Documentation/perf_counter/builtin-stat.c')
| -rw-r--r-- | Documentation/perf_counter/builtin-stat.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/Documentation/perf_counter/builtin-stat.c b/Documentation/perf_counter/builtin-stat.c index ef7e0e1192c..588679167c8 100644 --- a/Documentation/perf_counter/builtin-stat.c +++ b/Documentation/perf_counter/builtin-stat.c @@ -75,6 +75,7 @@ static __u64 event_res[MAX_COUNTERS][3]; static __u64 event_scaled[MAX_COUNTERS]; static __u64 runtime_nsecs; +static __u64 walltime_nsecs; static void create_perfstat_counter(int counter) { @@ -194,13 +195,19 @@ static void print_counter(int counter) if (nsec_counter(counter)) { double msecs = (double)count[0] / 1000000; - fprintf(stderr, " %14.6f %-20s (msecs)", + fprintf(stderr, " %14.6f %-20s", msecs, event_name(counter)); + if (event_id[counter] == + EID(PERF_TYPE_SOFTWARE, PERF_COUNT_TASK_CLOCK)) { + + fprintf(stderr, " # %11.3f CPU utilization factor", + (double)count[0] / (double)walltime_nsecs); + } } else { fprintf(stderr, " %14Ld %-20s", count[0], event_name(counter)); if (runtime_nsecs) - fprintf(stderr, " # %12.3f M/sec", + fprintf(stderr, " # %11.3f M/sec", (double)count[0]/runtime_nsecs*1000.0); } if (scaled) @@ -241,6 +248,8 @@ static int do_perfstat(int argc, const char **argv) prctl(PR_TASK_PERF_COUNTERS_DISABLE); t1 = rdclock(); + walltime_nsecs = t1 - t0; + fflush(stdout); fprintf(stderr, "\n"); |