rtla/src/timerlat_hist.c

173 	struct timerlat_hist_params *params = tool->params;
179 	if (params->output_divisor)
180 		latency = latency / params->output_divisor;
237 	struct timerlat_hist_params *params = tool->params;
243 	if (params->no_header)
249 			params->output_divisor == 1 ? "nanoseconds" : "microseconds",
250 			params->output_divisor == 1 ? "ns" : "us");
254 	if (!params->no_index)
258 		if (params->cpus && !CPU_ISSET(cpu, &params->monitored_cpus))
264 		if (!params->no_irq)
267 		if (!params->no_thread)
270 		if (params->user_hist)
284 timerlat_print_summary(struct timerlat_hist_params *params,
290 	if (params->no_summary)
293 	if (!params->no_index)
297 		if (params->cpus && !CPU_ISSET(cpu, &params->monitored_cpus))
303 		if (!params->no_irq)
307 		if (!params->no_thread)
311 		if (params->user_hist)
317 	if (!params->no_index)
321 		if (params->cpus && !CPU_ISSET(cpu, &params->monitored_cpus))
327 		if (!params->no_irq)
331 		if (!params->no_thread)
335 		if (params->user_hist)
341 	if (!params->no_index)
345 		if (params->cpus && !CPU_ISSET(cpu, &params->monitored_cpus))
351 		if (!params->no_irq) {
359 		if (!params->no_thread) {
367 		if (params->user_hist) {
377 	if (!params->no_index)
381 		if (params->cpus && !CPU_ISSET(cpu, &params->monitored_cpus))
387 		if (!params->no_irq)
391 		if (!params->no_thread)
395 		if (params->user_hist)
408 timerlat_print_stats(struct timerlat_hist_params *params, struct osnoise_tool *tool)
420 		if (!params->no_index)
425 			if (params->cpus && !CPU_ISSET(cpu, &params->monitored_cpus))
431 			if (!params->no_irq) {
437 			if (!params->no_thread) {
443 			if (params->user_hist) {
451 		if (total == 0 && !params->with_zeros) {
461 	if (!params->no_index)
465 		if (params->cpus && !CPU_ISSET(cpu, &params->monitored_cpus))
471 		if (!params->no_irq)
475 		if (!params->no_thread)
479 		if (params->user_hist)
487 	timerlat_print_summary(params, trace, data);
563 	struct timerlat_hist_params *params;
569 	params = calloc(1, sizeof(*params));
570 	if (!params)
574 	params->dma_latency = -1;
577 	params->output_divisor = 1000;
578 	params->bucket_size = 1;
579 	params->entries = 256;
631 			params->stop_total_us = auto_thresh;
632 			params->stop_us = auto_thresh;
635 			params->print_stack = auto_thresh;
638 			params->trace_output = "timerlat_trace.txt";
642 			retval = parse_cpu_set(optarg, &params->monitored_cpus);
645 			params->cpus = optarg;
648 			params->cgroup = 1;
651 				params->cgroup_name = NULL;
654 				params->cgroup_name = ++optarg;
658 			params->bucket_size = get_llong_from_str(optarg);
659 			if ((params->bucket_size == 0) || (params->bucket_size >= 1000000))
666 			params->duration = parse_seconds_duration(optarg);
667 			if (!params->duration)
677 			if (params->events)
678 				tevent->next = params->events;
680 			params->events = tevent;
683 			params->entries = get_llong_from_str(optarg);
684 			if ((params->entries < 10) || (params->entries > 9999999))
692 			params->hk_cpus = 1;
693 			retval = parse_cpu_set(optarg, &params->hk_cpu_set);
700 			params->stop_us = get_llong_from_str(optarg);
703 			params->output_divisor = 1;
706 			params->timerlat_period_us = get_llong_from_str(optarg);
707 			if (params->timerlat_period_us > 1000000)
711 			retval = parse_prio(optarg, &params->sched_param);
714 			params->set_sched = 1;
717 			params->print_stack = get_llong_from_str(optarg);
720 			params->stop_total_us = get_llong_from_str(optarg);
725 				params->trace_output = &optarg[1];
727 				params->trace_output = "timerlat_trace.txt";
730 			params->user_workload = 1;
733 			params->user_hist = 1;
736 			params->no_irq = 1;
739 			params->no_thread = 1;
742 			params->no_header = 1;
745 			params->no_summary = 1;
748 			params->no_index = 1;
751 			params->with_zeros = 1;
754 			if (params->events) {
755 				retval = trace_event_add_trigger(params->events, optarg);
765 			if (params->events) {
766 				retval = trace_event_add_filter(params->events, optarg);
776 			params->dma_latency = get_llong_from_str(optarg);
777 			if (params->dma_latency < 0 || params->dma_latency > 10000) {
783 			params->no_aa = 1;
786 			params->dump_tasks = 1;
798 	if (params->no_irq && params->no_thread)
801 	if (params->no_index && !params->with_zeros)
807 	if (!params->stop_us && !params->stop_total_us)
808 		params->no_aa = 1;
810 	return params;
817 timerlat_hist_apply_config(struct osnoise_tool *tool, struct timerlat_hist_params *params)
821 	if (!params->sleep_time)
822 		params->sleep_time = 1;
824 	if (params->cpus) {
825 		retval = osnoise_set_cpus(tool->context, params->cpus);
832 			CPU_SET(i, &params->monitored_cpus);
835 	if (params->stop_us) {
836 		retval = osnoise_set_stop_us(tool->context, params->stop_us);
843 	if (params->stop_total_us) {
844 		retval = osnoise_set_stop_total_us(tool->context, params->stop_total_us);
851 	if (params->timerlat_period_us) {
852 		retval = osnoise_set_timerlat_period_us(tool->context, params->timerlat_period_us);
859 	if (params->print_stack) {
860 		retval = osnoise_set_print_stack(tool->context, params->print_stack);
867 	if (params->hk_cpus) {
868 		retval = sched_setaffinity(getpid(), sizeof(params->hk_cpu_set),
869 					   &params->hk_cpu_set);
874 	} else if (params->cpus) {
882 		auto_house_keeping(&params->monitored_cpus);
885 	if (params->user_hist) {
903 *timerlat_init_hist(struct timerlat_hist_params *params)
914 	tool->data = timerlat_alloc_histogram(nr_cpus, params->entries, params->bucket_size);
918 	tool->params = params;
940 timerlat_hist_set_signals(struct timerlat_hist_params *params)
943 	if (params->duration) {
945 		alarm(params->duration);
951 	struct timerlat_hist_params *params;
962 	params = timerlat_hist_parse_args(argc, argv);
963 	if (!params)
966 	tool = timerlat_init_hist(params);
972 	retval = timerlat_hist_apply_config(tool, params);
986 	if (params->set_sched) {
987 		retval = set_comm_sched_attr("timerlat/", &params->sched_param);
994 	if (params->cgroup && !params->user_workload) {
995 		retval = set_comm_cgroup("timerlat/", params->cgroup_name);
1002 	if (params->dma_latency >= 0) {
1003 		dma_latency_fd = set_cpu_dma_latency(params->dma_latency);
1010 	if (params->trace_output) {
1017 		if (params->events) {
1018 			retval = trace_events_enable(&record->trace, params->events);
1024 	if (!params->no_aa) {
1029 		retval = timerlat_aa_init(aa, params->dump_tasks);
1049 	if (params->trace_output)
1051 	if (!params->no_aa)
1056 	timerlat_hist_set_signals(params);
1058 	if (params->user_workload) {
1064 		params_u.set = &params->monitored_cpus;
1065 		if (params->set_sched)
1066 			params_u.sched_param = &params->sched_param;
1070 		params_u.cgroup_name = params->cgroup_name;
1078 		sleep(params->sleep_time);
1095 		if (params->user_workload) {
1102 	if (params->user_workload && !params_u.stopped_running) {
1107 	timerlat_print_stats(params, tool);
1114 		if (!params->no_aa)
1115 			timerlat_auto_analysis(params->stop_us, params->stop_total_us);
1117 		if (params->trace_output) {
1118 			printf("  Saving trace to %s\n", params->trace_output);
1119 			save_trace_to_file(record->trace.inst, params->trace_output);
1127 	trace_events_destroy(&record->trace, params->events);
1128 	params->events = NULL;
1134 	free(params);