5 static volatile struct idle_prof_common ipc;  variable
29 				if (ipc.status == IDLE_PROF_STATUS_PROF_STOP)  in calibrate_unit()
86 	if (ipc.status == IDLE_PROF_STATUS_ABORT) {  in idle_prof_thread_fn()
124 	if (ipc.status == IDLE_PROF_STATUS_ABORT) {  in idle_prof_thread_fn()
130 	if (ipc.status == IDLE_PROF_STATUS_CALI_STOP) {  in idle_prof_thread_fn()
142 			if (ipc.status == IDLE_PROF_STATUS_PROF_STOP) {  in idle_prof_thread_fn()
168 	for (i = 0; i < ipc.nr_cpus; i++) {  in calibration_stats()
169 		ipt = &ipc.ipts[i];  in calibration_stats()
173 	ipc.cali_mean = sum/ipc.nr_cpus;  in calibration_stats()
175 	for (i = 0; i < ipc.nr_cpus; i++) {  in calibration_stats()
176 		ipt = &ipc.ipts[i];  in calibration_stats()
177 		var += pow(ipt->cali_time-ipc.cali_mean, 2);  in calibration_stats()
180 	ipc.cali_stddev = sqrt(var/(ipc.nr_cpus-1));  in calibration_stats()
191 	ipc.nr_cpus = cpus_online();  in fio_idle_prof_init()
192 	ipc.status = IDLE_PROF_STATUS_OK;  in fio_idle_prof_init()
194 	if (ipc.opt == IDLE_PROF_OPT_NONE)  in fio_idle_prof_init()
206 	ipc.ipts = malloc(ipc.nr_cpus * sizeof(struct idle_prof_thread));  in fio_idle_prof_init()
207 	if (!ipc.ipts) {  in fio_idle_prof_init()
212 	ipc.buf = malloc(ipc.nr_cpus * page_size);  in fio_idle_prof_init()
213 	if (!ipc.buf) {  in fio_idle_prof_init()
215 		free(ipc.ipts);  in fio_idle_prof_init()
223 	for (i = 0; i < ipc.nr_cpus; i++) {  in fio_idle_prof_init()
224 		ipt = &ipc.ipts[i];  in fio_idle_prof_init()
228 		ipt->data = (unsigned char *)(ipc.buf + page_size * i);  in fio_idle_prof_init()
231 			ipc.status = IDLE_PROF_STATUS_ABORT;  in fio_idle_prof_init()
237 			ipc.status = IDLE_PROF_STATUS_ABORT;  in fio_idle_prof_init()
243 			ipc.status = IDLE_PROF_STATUS_ABORT;  in fio_idle_prof_init()
255 			ipc.status = IDLE_PROF_STATUS_ABORT;  in fio_idle_prof_init()
271 	for (i = 0; i < ipc.nr_cpus; i++) {  in fio_idle_prof_init()
272 		ipt = &ipc.ipts[i];  in fio_idle_prof_init()
276 	if (ipc.status == IDLE_PROF_STATUS_ABORT)  in fio_idle_prof_init()
280 	for (i = 0; i < ipc.nr_cpus; i++) {  in fio_idle_prof_init()
281 		ipt = &ipc.ipts[i];  in fio_idle_prof_init()
297 			ipc.status = IDLE_PROF_STATUS_ABORT;  in fio_idle_prof_init()
300 	if (ipc.status != IDLE_PROF_STATUS_ABORT)  in fio_idle_prof_init()
303 		ipc.cali_mean = ipc.cali_stddev = 0.0;  in fio_idle_prof_init()
305 	if (ipc.opt == IDLE_PROF_OPT_CALI)  in fio_idle_prof_init()
306 		ipc.status = IDLE_PROF_STATUS_CALI_STOP;  in fio_idle_prof_init()
314 	if (ipc.opt == IDLE_PROF_OPT_NONE)  in fio_idle_prof_start()
318 	for (i = 0; i < ipc.nr_cpus; i++) {  in fio_idle_prof_start()
319 		ipt = &ipc.ipts[i];  in fio_idle_prof_start()
332 	if (ipc.opt == IDLE_PROF_OPT_NONE)  in fio_idle_prof_stop()
335 	if (ipc.opt == IDLE_PROF_OPT_CALI)  in fio_idle_prof_stop()
338 	ipc.status = IDLE_PROF_STATUS_PROF_STOP;  in fio_idle_prof_stop()
341 	for (i = 0; i < ipc.nr_cpus; i++) {  in fio_idle_prof_stop()
342 		ipt = &ipc.ipts[i];  in fio_idle_prof_stop()
355 		if (ipc.cali_mean != 0.0) {  in fio_idle_prof_stop()
358 				ipt->idleness = ipt->loops * ipc.cali_mean / runt;  in fio_idle_prof_stop()
377 	int i, nr_cpus = ipc.nr_cpus;  in fio_idle_prof_cpu_stat()
381 	if (ipc.opt == IDLE_PROF_OPT_NONE)  in fio_idle_prof_cpu_stat()
391 			ipt = &ipc.ipts[i];  in fio_idle_prof_cpu_stat()
396 		ipt = &ipc.ipts[cpu];  in fio_idle_prof_cpu_stat()
405 	if (ipc.ipts) {  in fio_idle_prof_cleanup()
406 		free(ipc.ipts);  in fio_idle_prof_cleanup()
407 		ipc.ipts = NULL;  in fio_idle_prof_cleanup()
410 	if (ipc.buf) {  in fio_idle_prof_cleanup()
411 		free(ipc.buf);  in fio_idle_prof_cleanup()
412 		ipc.buf = NULL;  in fio_idle_prof_cleanup()
418 	ipc.opt = IDLE_PROF_OPT_NONE; /* default */  in fio_idle_prof_parse_opt()
427 		ipc.opt = IDLE_PROF_OPT_CALI;  in fio_idle_prof_parse_opt()
434 		ipc.opt = IDLE_PROF_OPT_SYSTEM;  in fio_idle_prof_parse_opt()
437 		ipc.opt = IDLE_PROF_OPT_PERCPU;  in fio_idle_prof_parse_opt()
451 	int i, nr_cpus = ipc.nr_cpus;  in show_idle_prof_stats()
456 		if (ipc.opt > IDLE_PROF_OPT_CALI)  in show_idle_prof_stats()
458 		else if (ipc.opt == IDLE_PROF_OPT_CALI)  in show_idle_prof_stats()
461 		if (ipc.opt >= IDLE_PROF_OPT_SYSTEM)  in show_idle_prof_stats()
464 		if (ipc.opt == IDLE_PROF_OPT_PERCPU) {  in show_idle_prof_stats()
471 		if (ipc.opt >= IDLE_PROF_OPT_CALI) {  in show_idle_prof_stats()
472 			log_info("  unit work: mean=%3.2fus,", ipc.cali_mean);  in show_idle_prof_stats()
473 			log_info(" stddev=%3.2f\n", ipc.cali_stddev);  in show_idle_prof_stats()
477 		if (ipc.opt != IDLE_PROF_OPT_NONE)  in show_idle_prof_stats()
483 	if ((ipc.opt != IDLE_PROF_OPT_NONE) && (output == FIO_OUTPUT_JSON)) {  in show_idle_prof_stats()
494 		if (ipc.opt == IDLE_PROF_OPT_PERCPU) {  in show_idle_prof_stats()
501 		json_object_add_value_float(tmp, "unit_mean", ipc.cali_mean);  in show_idle_prof_stats()
502 		json_object_add_value_float(tmp, "unit_stddev", ipc.cali_stddev);  in show_idle_prof_stats()