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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 Mon Jun 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
2997640	2	59	48,8	sleep5	0	-21	swapper/5	07:04:34	5
2998100	99	48	44,3	cyclictest	635	-21	systemd-journal	07:16:50	7
2997639	2	46	35,8	sleep4	0	-21	swapper/4	07:04:33	4
2998091	99	43	40,2	cyclictest	3163351	-21	kworker/u16:1+events_unbound	09:31:53	5
2998095	99	42	39,2	cyclictest	3184122	-21	kworker/u16:3+events_unbound	08:41:52	6
2998091	99	42	40,2	cyclictest	3388958	-21	kworker/u16:3+events_unbound	10:32:21	5
2998091	99	41	39,2	cyclictest	3388958	-21	kworker/u16:3+events_unbound	10:50:51	5
2998091	99	41	39,2	cyclictest	3388958	-21	kworker/u16:3+events_unbound	10:44:41	5
2998091	99	41	39,2	cyclictest	3388958	-21	kworker/u16:3+events_unbound	10:21:12	5
2998091	99	41	38,2	cyclictest	3650802	-21	kworker/u16:0+events_unbound	12:26:52	5
2998091	99	40	38,2	cyclictest	3304301	-21	kworker/u16:4+events_unbound	09:42:17	5
2988645	2	40	5,30	sleep7	0	-21	swapper/7	07:01:55	7
2998095	99	39	37,2	cyclictest	3202481	-21	kworker/u16:4+events_unbound	09:16:21	6
2998091	99	39	37,2	cyclictest	3532836	-21	kworker/u16:2+events_unbound	11:13:39	5
2998087	99	39	36,2	cyclictest	3069393	-21	kworker/u16:1+flush-8:0	07:52:16	4
2998095	99	38	36,2	cyclictest	3569001	-21	kworker/u16:4+events_unbound	11:55:12	6
2998095	99	38	36,2	cyclictest	3569001	-21	kworker/u16:4+events_unbound	11:45:44	6
2998095	99	38	36,2	cyclictest	3328765	-21	kworker/u16:0+events_unbound	10:03:56	6
2998095	99	38	32,6	cyclictest	3569001	-21	kworker/u16:4+events_unbound	12:06:15	6
2998091	99	38	36,2	cyclictest	3472717	-21	kworker/u16:0+events_unbound	10:55:11	5
2998091	99	38	36,2	cyclictest	3448676	-21	kworker/u16:1+events_unbound	11:08:32	5
2998091	99	38	36,2	cyclictest	3304301	-21	kworker/u16:4+flush-8:0	09:49:59	5
2998095	99	37	35,2	cyclictest	3448676	-21	kworker/u16:1+events_unbound	11:37:23	6
2998095	99	37	35,2	cyclictest	3448676	-21	kworker/u16:1+events_unbound	11:37:23	6
2998095	99	37	35,2	cyclictest	3364448	-21	kworker/u16:2+events_unbound	10:36:27	6
2998095	99	37	35,2	cyclictest	3268169	-21	kworker/u16:0+events_unbound	09:27:00	6
2998095	99	37	35,2	cyclictest	3163351	-21	kworker/u16:1+events_unbound	09:55:56	6
2998091	99	37	35,2	cyclictest	3650802	-21	kworker/u16:0+events_unbound	12:05:28	5
2998091	99	37	35,2	cyclictest	3569001	-21	kworker/u16:4+events_unbound	12:26:11	5
2998091	99	37	35,2	cyclictest	3518663	-21	kworker/u16:3+events_unbound	11:25:12	5
2998091	99	37	35,2	cyclictest	3328765	-21	kworker/u16:0+events_unbound	10:01:20	5
2998091	99	37	35,2	cyclictest	3233389	-21	kworker/u16:2+events_unbound	09:15:40	5
2998091	99	37	35,2	cyclictest	3163351	-21	kworker/u16:1+events_unbound	10:08:20	5
2998095	99	36	34,2	cyclictest	3532836	-21	kworker/u16:2+flush-8:0	11:15:39	6
2998095	99	36	34,2	cyclictest	3364448	-21	kworker/u16:2+events_unbound	10:17:43	6
2998091	99	36	34,2	cyclictest	3569001	-21	kworker/u16:4+events_unbound	12:18:04	5
2998091	99	36	34,2	cyclictest	3569001	-21	kworker/u16:4+events_unbound	12:18:04	5
2998091	99	36	34,2	cyclictest	3569001	-21	kworker/u16:4+events_unbound	12:13:03	5
2998091	99	36	34,2	cyclictest	3569001	-21	kworker/u16:4+events_unbound	11:47:51	5
2998091	99	36	34,2	cyclictest	3518663	-21	kworker/u16:3+events_unbound	11:35:12	5
2998095	99	35	33,2	cyclictest	3650802	-21	kworker/u16:0+events_unbound	12:25:36	6
2998095	99	35	33,2	cyclictest	3472717	-21	kworker/u16:0+events_unbound	10:57:43	6
2998095	99	35	33,2	cyclictest	3304301	-21	kworker/u16:4+events_unbound	10:54:24	6
2998095	99	35	33,2	cyclictest	3163351	-21	kworker/u16:1+events_unbound	09:45:11	6
2998091	99	35	33,2	cyclictest	3472717	-21	kworker/u16:0+events_unbound	11:03:39	5
2998091	99	35	33,2	cyclictest	3448676	-21	kworker/u16:1+events_unbound	11:00:13	5
2998091	99	35	33,2	cyclictest	3328765	-21	kworker/u16:0+events_unbound	09:53:12	5
2998091	99	35	33,2	cyclictest	3304301	-21	kworker/u16:4+events_unbound	10:39:11	5
2998091	99	35	33,2	cyclictest	3304301	-21	kworker/u16:4+events_unbound	09:39:35	5
2998091	99	35	33,2	cyclictest	3202481	-21	kworker/u16:4+events_unbound	09:19:52	5
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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