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Default latency plot of system in rack #0, slot #2

Click here to display the system's profile data or here to proceed to next system.

Click on a legend element to toggle display of that core, ctrl-click inverts display, shift-click enables all.
Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Compare latency of primary with shadow system

Characteristics of the 100 highest latencies:

System rack0slot2.osadl.org (updated Tue Sep 01, 2026 12:43:34)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
4194175	2	57	22,30	sleep7	0	-21	swapper/7	07:07:41	7
4194059	2	47	37,7	sleep5	0	-21	swapper/5	07:06:02	5
609	99	40	38,2	cyclictest	633230	-21	kworker/u16:1+events_unbound	11:59:59	5
606	99	40	39,1	cyclictest	670068	-21	kworker/u16:4+events_unbound	12:24:50	4
611	99	39	37,2	cyclictest	423651	-21	kworker/u16:3+flush-8:0	12:25:02	6
611	99	38	35,2	cyclictest	544380	-21	kworker/u16:4+events_unbound	11:19:39	6
609	99	38	36,2	cyclictest	423651	-21	kworker/u16:3+events_unbound	10:51:43	5
609	99	38	35,2	cyclictest	670068	-21	kworker/u16:4+flush-8:0	12:19:38	5
609	99	37	35,2	cyclictest	336557	-21	kworker/u16:1+events_unbound	10:39:00	5
609	99	37	35,2	cyclictest	288037	-21	kworker/u16:5+events_unbound	09:31:27	5
609	99	37	35,2	cyclictest	250832	-21	kworker/u16:4+events_unbound	09:37:19	5
4194154	2	37	26,8	sleep4	0	-21	swapper/4	07:07:21	4
609	99	36	34,2	cyclictest	569079	-21	kworker/u16:2+events_unbound	12:17:38	5
609	99	36	33,2	cyclictest	423651	-21	kworker/u16:3+events_unbound	12:25:11	5
609	99	36	32,3	cyclictest	285295	-21	kworker/u16:0+flush-8:0	11:59:36	5
611	99	35	33,2	cyclictest	423651	-21	kworker/u16:3+events_unbound	12:07:46	6
611	99	35	33,2	cyclictest	218017	-21	kworker/u16:4+flush-8:0	09:00:02	6
611	99	35	33,2	cyclictest	10717	-21	kworker/u16:0+events_unbound	07:14:37	6
609	99	35	33,2	cyclictest	569079	-21	kworker/u16:2+events_unbound	11:53:59	5
609	99	35	33,2	cyclictest	336557	-21	kworker/u16:1+events_unbound	10:00:27	5
609	99	35	33,2	cyclictest	130542	-21	kworker/u16:3+events_unbound	09:22:12	5
609	99	35	33,2	cyclictest	130542	-21	kworker/u16:3+events_unbound	09:14:06	5
611	99	34	32,2	cyclictest	729189	-21	kworker/u16:1+events_unbound	12:29:55	6
611	99	34	32,2	cyclictest	729189	-21	kworker/u16:1+events_unbound	12:29:55	6
611	99	34	32,2	cyclictest	569079	-21	kworker/u16:2+events_unbound	12:10:50	6
611	99	34	32,2	cyclictest	336557	-21	kworker/u16:1+flush-8:0	10:38:47	6
609	99	34	32,2	cyclictest	544380	-21	kworker/u16:4+events_unbound	11:19:18	5
609	99	34	32,2	cyclictest	506704	-21	kworker/u16:2+events_unbound	11:01:23	5
609	99	34	32,2	cyclictest	423651	-21	kworker/u16:3+events_unbound	12:37:30	5
609	99	34	32,2	cyclictest	423651	-21	kworker/u16:3+events_unbound	12:07:54	5
609	99	34	32,2	cyclictest	423651	-21	kworker/u16:3+events_unbound	10:44:19	5
609	99	34	32,2	cyclictest	361962	-21	kworker/u16:5+events_unbound	10:09:38	5
609	99	34	32,2	cyclictest	285295	-21	kworker/u16:0+events_unbound	12:33:26	5
609	99	34	32,2	cyclictest	285295	-21	kworker/u16:0+events_unbound	12:33:26	5
609	99	34	32,2	cyclictest	285295	-21	kworker/u16:0+events_unbound	09:41:39	5
611	99	33	31,2	cyclictest	729189	-21	kworker/u16:1+events_unbound	12:35:02	6
611	99	33	31,2	cyclictest	633230	-21	kworker/u16:1+events_unbound	11:59:55	6
611	99	33	31,2	cyclictest	189761	-21	kworker/u16:2+flush-8:0	09:55:46	6
611	99	33	28,5	cyclictest	285295	-21	kworker/u16:0+events_unbound	10:42:55	6
609	99	33	31,2	cyclictest	608765	-21	kworker/u16:4+events_unbound	11:41:19	5
609	99	33	31,2	cyclictest	569079	-21	kworker/u16:2+events_unbound	12:12:47	5
609	99	33	31,2	cyclictest	423651	-21	kworker/u16:3+events_unbound	11:38:19	5
609	99	33	31,2	cyclictest	421335	-21	kworker/u16:2+events_unbound	10:32:26	5
609	99	33	31,2	cyclictest	336557	-21	kworker/u16:1+events_unbound	11:32:27	5
609	99	33	31,2	cyclictest	285295	-21	kworker/u16:0+events_unbound	10:27:36	5
609	99	33	31,2	cyclictest	285295	-21	kworker/u16:0+events_unbound	10:27:36	5
609	99	33	31,2	cyclictest	285295	-21	kworker/u16:0+events_unbound	10:15:18	5
609	99	33	31,2	cyclictest	250832	-21	kworker/u16:4+events_unbound	09:15:35	5
609	99	33	31,2	cyclictest	189761	-21	kworker/u16:2+events_unbound	09:44:58	5
609	99	33	31,2	cyclictest	189761	-21	kworker/u16:2+events_unbound	09:44:58	5
611	99	32	30,2	cyclictest	569079	-21	kworker/u16:2+events_unbound	11:57:46	6
611	99	32	30,2	cyclictest	250832	-21	kworker/u16:4+flush-8:0	09:42:58	6
611	99	32	30,2	cyclictest	250832	-21	kworker/u16:4+events_unbound	10:12:26	6
611	99	32	30,2	cyclictest	189761	-21	kworker/u16:2+events_unbound	09:27:52	6
609	99	32	30,2	cyclictest	361962	-21	kworker/u16:5+flush-8:0	10:20:31	5
609	99	32	30,2	cyclictest	336557	-21	kworker/u16:1+flush-8:0	11:28:26	5
609	99	32	30,2	cyclictest	336557	-21	kworker/u16:1+events_unbound	11:23:34	5
609	99	32	28,4	cyclictest	336557	-21	kworker/u16:1+flush-8:0	11:09:36	5
4194042	2	32	9,8	sleep6	0	-21	swapper/6	07:05:47	6
614	99	31	26,4	cyclictest	620785	-21	latency_hist	11:44:36	7
611	99	31	29,2	cyclictest	285295	-21	kworker/u16:0+events_unbound	12:17:07	6
611	99	31	29,2	cyclictest	285295	-21	kworker/u16:0+events_unbound	11:12:18	6
611	99	31	29,2	cyclictest	250832	-21	kworker/u16:4+events_unbound	09:46:46	6
611	99	31	29,2	cyclictest	250832	-21	kworker/u16:4+events_unbound	09:46:46	6
611	99	31	29,2	cyclictest	189761	-21	kworker/u16:2+events_unbound	09:17:56	6
611	99	31	28,2	cyclictest	421335	-21	kworker/u16:2+events_unbound	10:25:51	6
611	99	31	28,2	cyclictest	421335	-21	kworker/u16:2+events_unbound	10:25:51	6
609	99	31	29,2	cyclictest	608765	-21	kworker/u16:4+events_unbound	11:48:23	5
609	99	31	29,2	cyclictest	361962	-21	kworker/u16:5+events_unbound	10:07:11	5
609	99	31	29,2	cyclictest	200681	-21	kworker/u16:1+events_unbound	09:25:51	5
606	99	31	28,2	cyclictest	285295	-21	kworker/u16:0+flush-8:0	09:49:36	4
606	99	31	28,2	cyclictest	285295	-21	kworker/u16:0+flush-8:0	09:49:36	4
611	99	30	28,2	cyclictest	544380	-21	kworker/u16:4+flush-8:0	11:15:59	6
611	99	30	28,2	cyclictest	423651	-21	kworker/u16:3+events_unbound	10:51:11	6
611	99	30	28,2	cyclictest	336557	-21	kworker/u16:1+events_unbound	11:00:50	6
611	99	30	28,2	cyclictest	189761	-21	kworker/u16:2+events_unbound	09:11:23	6
611	99	30	27,2	cyclictest	285295	-21	kworker/u16:0+flush-8:0	12:20:30	6
611	99	30	26,3	cyclictest	4164999	-21	kworker/u16:2+events_unbound	08:00:02	6
609	99	30	28,2	cyclictest	421335	-21	kworker/u16:2+events_unbound	10:47:23	5
606	99	30	29,1	cyclictest	361962	-21	kworker/u16:5+events_unbound	10:08:23	4
614	99	29	28,0	cyclictest	0	-21	swapper/7	09:27:54	7
611	99	29	27,2	cyclictest	633230	-21	kworker/u16:1+events_unbound	11:51:23	6
611	99	29	27,2	cyclictest	423651	-21	kworker/u16:3+events_unbound	11:36:47	6
611	99	29	27,2	cyclictest	361962	-21	kworker/u16:5+events_unbound	10:06:55	6
611	99	29	27,2	cyclictest	130542	-21	kworker/u16:3+flush-8:0	09:20:11	6
609	99	29	27,2	cyclictest	285295	-21	kworker/u16:0+events_unbound	11:13:55	5
609	99	29	27,2	cyclictest	285295	-21	kworker/u16:0+events_unbound	09:58:59	5
609	99	29	27,2	cyclictest	189761	-21	kworker/u16:2+events_unbound	09:52:34	5
606	99	29	27,2	cyclictest	43772	-21	kworker/u16:4+events_unbound	08:10:03	4
611	99	28	26,2	cyclictest	336557	-21	kworker/u16:1+flush-8:0	10:45:47	6
611	99	28	26,2	cyclictest	336557	-21	kworker/u16:1+events_unbound	10:33:59	6
611	99	28	26,2	cyclictest	285295	-21	kworker/u16:0+events_unbound	11:39:59	6
611	99	28	26,2	cyclictest	285295	-21	kworker/u16:0+events_unbound	11:30:34	6
611	99	28	26,2	cyclictest	285295	-21	kworker/u16:0+events_unbound	11:26:26	6
611	99	28	26,2	cyclictest	285295	-21	kworker/u16:0+events_unbound	09:51:19	6
611	99	28	26,2	cyclictest	285295	-21	kworker/u16:0+events_unbound	09:33:28	6
609	99	28	26,2	cyclictest	506704	-21	kworker/u16:2+flush-8:0	10:58:35	5
570432	2	28	0,1	chrt	570430	-21	ssh	11:22:38	7
556848	2	28	0,1	chrt	556847	-21	rm	11:15:24	7
614	99	27	26,0	cyclictest	0	-21	swapper/7	08:40:27	7
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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This page was last modified on 2019-05-28 - 00:17