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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 18, 2025 12:43:29)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
518752	2	56	45,7	sleep6	0	-21	swapper/6	15:26:27	6
518819	2	55	44,8	sleep5	0	-21	swapper/5	15:27:22	5
518761	2	51	39,8	sleep4	0	-21	swapper/4	15:26:33	4
518599	2	45	11,29	sleep7	0	-21	swapper/7	15:24:19	7
519126	99	43	41,2	cyclictest	561181	-21	kworker/u16:4+events_unbound	16:07:45	4
519126	99	42	40,2	cyclictest	621045	-21	kworker/u16:0+events_unbound	17:13:17	4
519131	99	41	39,2	cyclictest	470432	-21	kworker/u16:1+flush-8:0	15:59:45	6
519131	99	40	38,2	cyclictest	621193	-21	kworker/u16:1+flush-8:0	16:26:46	6
519131	99	40	38,2	cyclictest	621193	-21	kworker/u16:1+flush-8:0	16:26:46	6
519128	99	39	37,2	cyclictest	729659	-21	kworker/u16:1+events_unbound	17:48:26	5
519131	99	38	36,2	cyclictest	523379	-21	kworker/u16:3+events_unbound	15:31:45	6
519131	99	38	36,2	cyclictest	470432	-21	kworker/u16:1+events_unbound	16:03:45	6
519126	99	38	36,2	cyclictest	1053373	-21	kworker/u16:0+flush-8:0	20:08:16	4
519126	99	37	35,2	cyclictest	621045	-21	kworker/u16:0+events_unbound	17:06:56	4
519126	99	37	35,2	cyclictest	581837	-21	kworker/u16:2+events_unbound	16:22:44	4
519126	99	37	35,2	cyclictest	1141226	-21	kworker/u16:5+events_unbound	20:47:26	4
519126	99	36	34,2	cyclictest	523379	-21	kworker/u16:3+flush-8:0	15:33:02	4
519131	99	34	32,2	cyclictest	621193	-21	kworker/u16:1+events_unbound	16:20:02	6
519131	99	34	32,2	cyclictest	1102408	-21	kworker/u16:0+events_unbound	20:37:44	6
519126	99	34	32,2	cyclictest	945010	-21	kworker/u16:3+events_unbound	19:23:20	4
519131	99	33	31,2	cyclictest	945010	-21	kworker/u16:3+flush-8:0	19:23:27	6
519131	99	33	31,2	cyclictest	797964	-21	kworker/u16:5+events_unbound	18:18:29	6
519131	99	33	31,2	cyclictest	777393	-21	kworker/u16:3+flush-8:0	17:45:28	6
519131	99	33	31,2	cyclictest	1122139	-21	kworker/u16:4+events_unbound	20:55:33	6
519131	99	33	31,2	cyclictest	1053373	-21	kworker/u16:0+events_unbound	20:08:00	6
519126	99	33	31,2	cyclictest	1141226	-21	kworker/u16:5+events_unbound	20:50:01	4
519131	99	32	30,2	cyclictest	680517	-21	kworker/u16:2+flush-8:0	17:15:01	6
519131	99	32	30,2	cyclictest	680517	-21	kworker/u16:2+flush-8:0	16:51:01	6
519131	99	32	30,2	cyclictest	1141226	-21	kworker/u16:5+events_unbound	20:45:00	6
519126	99	32	30,2	cyclictest	797964	-21	kworker/u16:5+events_unbound	18:54:27	4
519126	99	32	30,2	cyclictest	1132273	-21	kworker/u16:2+events_unbound	20:39:26	4
519131	99	31	29,2	cyclictest	906062	-21	kworker/u16:1+flush-8:0	19:39:13	6
519131	99	31	29,2	cyclictest	797964	-21	kworker/u16:5+flush-8:0	18:30:27	6
519131	99	31	29,2	cyclictest	621045	-21	kworker/u16:0+flush-8:0	17:10:55	6
519131	99	31	29,2	cyclictest	222843	-21	kworker/u16:5+events_unbound	15:37:45	6
519126	99	31	29,2	cyclictest	846893	-21	kworker/u16:0+events_unbound	18:37:09	4
519126	99	31	29,2	cyclictest	1063790	-21	kworker/u16:1+events_unbound	20:31:01	4
519126	99	31	28,2	cyclictest	846893	-21	kworker/u16:0+events_unbound	19:43:01	4
519126	99	31	28,2	cyclictest	777393	-21	kworker/u16:3+flush-8:0	17:37:53	4
519126	99	31	28,2	cyclictest	621193	-21	kworker/u16:1+events_unbound	16:57:55	4
519131	99	30	28,2	cyclictest	906062	-21	kworker/u16:1+flush-8:0	18:59:26	6
519131	99	30	28,2	cyclictest	818093	-21	kworker/u16:3+events_unbound	18:05:59	6
519131	99	30	28,2	cyclictest	797965	-21	kworker/u16:6+flush-8:0	18:08:23	6
519131	99	30	28,2	cyclictest	797964	-21	kworker/u16:5+flush-8:0	18:50:33	6
519131	99	30	28,2	cyclictest	797964	-21	kworker/u16:5+flush-8:0	18:50:33	6
519131	99	30	28,2	cyclictest	797952	-21	kworker/u16:2+events_unbound	17:48:06	6
519131	99	30	28,2	cyclictest	621193	-21	kworker/u16:1+events_unbound	16:53:54	6
519131	99	30	28,2	cyclictest	1083048	-21	kworker/u16:2+events_unbound	20:13:30	6
519128	99	30	28,2	cyclictest	1043408	-21	kworker/u16:4+flush-8:0	20:18:20	5
519126	99	30	28,2	cyclictest	846893	-21	kworker/u16:0+events_unbound	19:21:27	4
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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