diff options
| author | Petri Savolainen <petri.savolainen@nokia.com> | 2022-11-23 14:45:20 +0200 |
|---|---|---|
| committer | Petri Savolainen <petri.savolainen@nokia.com> | 2022-11-28 17:10:24 +0200 |
| commit | 1debaf40e89bea9ce8c3c72505bc69a62daa39fa (patch) | |
| tree | 552f5f9eb033de24615d7fe765f28bcd9ed46077 /test | |
| parent | 354d9e48cc98d18c1fc0c7a19fbfaf0dd854fa4b (diff) | |
test: sched_latency: record index of max latency event
Added index of the highest latency sample event into
statistics. It may help in finding the reason for high
latency events (high latency only during start up vs
randomly).
Signed-off-by: Petri Savolainen <petri.savolainen@nokia.com>
Reviewed-by: Jere Leppänen <jere.leppanen@nokia.com>
Diffstat (limited to 'test')
| -rw-r--r-- | test/performance/odp_sched_latency.c | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/test/performance/odp_sched_latency.c b/test/performance/odp_sched_latency.c index 81ca53ce6..6475f49f8 100644 --- a/test/performance/odp_sched_latency.c +++ b/test/performance/odp_sched_latency.c @@ -103,6 +103,7 @@ typedef struct { uint64_t tot; /**< Total event latency. Sum of all events. */ uint64_t min; /**< Minimum event latency */ uint64_t max; /**< Maximum event latency */ + uint64_t max_idx; /**< Index of the maximum latency sample event */ } test_stat_t; /** Performance test statistics (per core) */ @@ -310,8 +311,8 @@ static void print_results(test_globals_t *globals) total.min = UINT64_MAX; printf("%s priority\n" - "Thread Avg[ns] Min[ns] Max[ns] Samples Total\n" - "---------------------------------------------------------------\n", + "Thread Avg[ns] Min[ns] Max[ns] Samples Total Max idx\n" + "-----------------------------------------------------------------------\n", i == HI_PRIO ? "HIGH" : "LOW"); for (j = 1; j <= args->cpu_count; j++) { lat = &globals->core_stat[j].prio[i]; @@ -331,11 +332,11 @@ static void print_results(test_globals_t *globals) avg = lat->events ? lat->tot / lat->sample_events : 0; printf("%-8d %-10" PRIu64 " %-10" PRIu64 " " - "%-10" PRIu64 " %-10" PRIu64 " %-10" PRIu64 "\n", + "%-10" PRIu64 " %-10" PRIu64 " %-10" PRIu64 " %-10" PRIu64 "\n", j, avg, lat->min, lat->max, lat->sample_events, - lat->events); + lat->events, lat->max_idx); } - printf("---------------------------------------------------------------\n"); + printf("-----------------------------------------------------------------------\n"); if (total.sample_events == 0) { printf("Total N/A\n\n"); continue; @@ -431,8 +432,10 @@ static int test_schedule(int thr, test_globals_t *globals) if (event->type == SAMPLE) { latency = odp_time_to_ns(time) - odp_time_to_ns(event->time_stamp); - if (latency > stats->max) + if (latency > stats->max) { stats->max = latency; + stats->max_idx = stats->sample_events; + } if (latency < stats->min) stats->min = latency; stats->tot += latency; |