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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 50 highest latencies:

System rack0slot2.osadl.org (updated Thu Sep 17, 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
688658	2	64	0,1	sleep7	688660	-21	kthreadcore	08:29:52	7
522521	2	58	48,7	sleep5	0	-21	swapper/5	07:08:18	5
522521	2	58	48,7	sleep5	0	-21	swapper/5	07:08:18	5
522532	2	55	21,29	sleep7	0	-21	swapper/7	07:08:28	7
522532	2	55	21,29	sleep7	0	-21	swapper/7	07:08:28	7
522490	2	40	30,7	sleep4	0	-21	swapper/4	07:07:53	4
522490	2	40	30,7	sleep4	0	-21	swapper/4	07:07:53	4
594758	2	39	0,0	sleep7	594759	-21	cut	07:44:33	7
522906	99	38	31,5	cyclictest	645	-21	systemd-journal	09:29:33	7
522896	99	38	36,2	cyclictest	759757	-21	kworker/u16:1+events_unbound	09:18:47	5
522896	99	38	36,2	cyclictest	1154654	-21	kworker/u16:5+events_unbound	12:04:36	5
522896	99	37	35,2	cyclictest	895571	-21	kworker/u16:5+events_unbound	10:13:28	5
522896	99	37	35,2	cyclictest	707539	-21	kworker/u16:0+events_unbound	09:29:16	5
522896	99	37	35,2	cyclictest	1142363	-21	kworker/u16:1+events_unbound	12:01:27	5
522896	99	37	35,2	cyclictest	1006862	-21	kworker/u16:3+events_unbound	11:22:47	5
522896	99	36	34,2	cyclictest	663529	-21	kworker/u16:2+flush-8:0	09:23:55	5
522896	99	36	34,2	cyclictest	1213747	-21	kworker/u16:0+flush-8:0	12:13:50	5
522896	99	36	34,2	cyclictest	1105760	-21	kworker/u16:4+events_unbound	11:45:27	5
522896	99	36	34,2	cyclictest	1080788	-21	kworker/u16:0+events_unbound	11:32:59	5
522896	99	36	34,2	cyclictest	1006753	-21	kworker/u16:2+events_unbound	10:50:07	5
522896	99	36	32,2	cyclictest	1105760	-21	kworker/u16:4+events_unbound	11:41:03	5
522896	99	35	33,2	cyclictest	931247	-21	kworker/u16:1+events_unbound	10:28:31	5
522896	99	35	33,2	cyclictest	917108	-21	kworker/u16:0+events_unbound	11:03:11	5
522896	99	35	33,2	cyclictest	917108	-21	kworker/u16:0+events_unbound	11:03:11	5
522896	99	35	33,2	cyclictest	917108	-21	kworker/u16:0+events_unbound	10:37:27	5
522896	99	35	33,2	cyclictest	809469	-21	kworker/u16:4+events_unbound	09:40:35	5
522896	99	35	33,2	cyclictest	759757	-21	kworker/u16:1+events_unbound	09:13:56	5
522896	99	35	33,2	cyclictest	663529	-21	kworker/u16:2+events_unbound	09:52:51	5
522896	99	35	33,2	cyclictest	1213747	-21	kworker/u16:0+events_unbound	12:33:30	5
522896	99	35	33,2	cyclictest	1154654	-21	kworker/u16:5+events_unbound	11:53:50	5
522896	99	35	33,2	cyclictest	1142364	-21	kworker/u16:2+flush-8:0	12:20:19	5
522896	99	35	33,2	cyclictest	1080788	-21	kworker/u16:0+events_unbound	11:35:47	5
522896	99	35	33,2	cyclictest	1080788	-21	kworker/u16:0+events_unbound	11:25:51	5
522896	99	35	33,2	cyclictest	1066047	-21	kworker/u16:1+events_unbound	11:15:59	5
522896	99	34	32,2	cyclictest	917108	-21	kworker/u16:0+events_unbound	10:30:54	5
522896	99	34	32,2	cyclictest	870909	-21	kworker/u16:3+events_unbound	10:05:08	5
522896	99	34	32,2	cyclictest	707539	-21	kworker/u16:0+events_unbound	09:56:24	5
522896	99	34	32,2	cyclictest	707539	-21	kworker/u16:0+events_unbound	09:32:30	5
522896	99	34	32,2	cyclictest	1142364	-21	kworker/u16:2+events_unbound	12:38:35	5
522896	99	34	32,2	cyclictest	1142364	-21	kworker/u16:2+events_unbound	12:26:51	5
522896	99	34	32,2	cyclictest	1006753	-21	kworker/u16:2+events_unbound	10:58:55	5
522896	99	33	31,2	cyclictest	944997	-21	kworker/u16:4+events_unbound	10:43:28	5
522896	99	33	31,2	cyclictest	917108	-21	kworker/u16:0+events_unbound	10:15:39	5
522896	99	33	31,2	cyclictest	870909	-21	kworker/u16:3+flush-8:0	10:20:11	5
522896	99	33	31,2	cyclictest	870909	-21	kworker/u16:3+flush-8:0	10:20:11	5
522896	99	33	31,2	cyclictest	1006862	-21	kworker/u16:3+events_unbound	11:55:10	5
522892	99	33	31,2	cyclictest	1213747	-21	kworker/u16:0+flush-8:0	12:35:43	4
522896	99	32	30,2	cyclictest	809469	-21	kworker/u16:4+flush-8:0	10:00:32	5
522896	99	32	30,2	cyclictest	1213747	-21	kworker/u16:0+events_unbound	12:15:35	5
522589	2	32	21,8	sleep6	0	-21	swapper/6	07:09:15	6
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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