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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 May 12, 2026 00:43:34)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
3663329	99	56	54,2	cyclictest	4065623	-21	kworker/u16:1+events_unbound	23:13:40	6
3663334	99	46	40,5	cyclictest	4126976	-21	latency_hist	22:43:12	7
3662933	2	46	35,8	sleep5	0	-21	swapper/5	19:06:58	5
3662849	2	39	4,30	sleep7	0	-21	swapper/7	19:05:47	7
3663329	99	38	36,2	cyclictest	3743889	-21	kworker/u16:3+events_unbound	21:44:54	6
3663329	99	37	35,2	cyclictest	90868	-21	kworker/u16:2+events_unbound	00:00:30	6
3663329	99	37	35,2	cyclictest	151119	-21	kworker/u16:3+events_unbound	00:27:38	6
3663334	99	36	0,35	cyclictest	3921387	-21	latency_hist	21:18:12	7
3663329	99	36	34,2	cyclictest	3957781	-21	kworker/u16:2+flush-8:0	22:15:55	6
3663329	99	36	33,2	cyclictest	3830077	-21	kworker/u16:0+events_unbound	20:58:14	6
3663329	99	36	33,2	cyclictest	3830077	-21	kworker/u16:0+events_unbound	20:58:14	6
3663324	99	36	33,2	cyclictest	2952171	-21	kworker/u16:3+events_unbound	19:13:15	4
3663329	99	35	33,2	cyclictest	4151556	-21	kworker/u16:2+events_unbound	23:11:42	6
3663329	99	35	33,2	cyclictest	209594	-21	kworker/u16:1+events_unbound	00:34:42	6
3663334	99	34	28,5	cyclictest	4054450	-21	latency_hist	22:13:11	7
3663329	99	34	32,2	cyclictest	16909	-21	kworker/u16:3+events_unbound	23:24:54	6
3663329	99	33	31,2	cyclictest	4125231	-21	kworker/u16:0+events_unbound	22:51:07	6
3663329	99	33	31,2	cyclictest	4125231	-21	kworker/u16:0+events_unbound	22:47:42	6
3663329	99	33	31,2	cyclictest	4065623	-21	kworker/u16:1+events_unbound	23:06:02	6
3663329	99	33	31,2	cyclictest	3991566	-21	kworker/u16:0+events_unbound	21:55:02	6
3663329	99	33	31,2	cyclictest	3743889	-21	kworker/u16:3+events_unbound	22:19:55	6
3663329	99	33	31,2	cyclictest	3743889	-21	kworker/u16:3+events_unbound	22:19:55	6
3663329	99	33	31,2	cyclictest	186453	-21	kworker/u16:0+events_unbound	00:30:10	6
3663329	99	33	31,2	cyclictest	151119	-21	kworker/u16:3+flush-8:0	00:17:25	6
3663329	99	33	31,2	cyclictest	115422	-21	kworker/u16:4+events_unbound	00:11:54	6
3663334	99	32	31,0	cyclictest	0	-21	swapper/7	22:28:27	7
3663329	99	32	30,2	cyclictest	4125231	-21	kworker/u16:0+events_unbound	23:50:34	6
3663329	99	32	30,2	cyclictest	4125231	-21	kworker/u16:0+events_unbound	23:03:03	6
3663329	99	32	30,2	cyclictest	4125231	-21	kworker/u16:0+events_unbound	23:03:03	6
3663329	99	32	30,2	cyclictest	3991566	-21	kworker/u16:0+events_unbound	22:00:28	6
3663329	99	32	30,2	cyclictest	3743889	-21	kworker/u16:3+events_unbound	22:26:26	6
3662914	2	32	22,7	sleep6	0	-21	swapper/6	19:06:43	6
3663329	99	31	29,2	cyclictest	4078303	-21	kworker/u16:2+events_unbound	22:34:15	6
3663329	99	30	28,2	cyclictest	90868	-21	kworker/u16:2+events_unbound	00:06:06	6
3663329	99	30	28,2	cyclictest	3878184	-21	kworker/u16:1+events_unbound	21:26:42	6
3663329	99	30	28,2	cyclictest	3743889	-21	kworker/u16:3+events_unbound	22:09:43	6
3663329	99	30	27,2	cyclictest	3685154	-21	kworker/u16:1+events_unbound	19:48:14	6
3663329	99	29	27,2	cyclictest	90868	-21	kworker/u16:2+events_unbound	23:56:59	6
3663329	99	29	27,2	cyclictest	77759	-21	kworker/u16:1+events_unbound	00:23:08	6
3663329	99	29	27,2	cyclictest	3878184	-21	kworker/u16:1+flush-8:0	21:39:34	6
3663329	99	29	27,2	cyclictest	3743889	-21	kworker/u16:3+flush-8:0	21:13:58	6
3663326	99	29	27,2	cyclictest	77759	-21	kworker/u16:1+flush-8:0	23:48:35	5
3663334	99	28	26,1	cyclictest	89380	-21	ssh	23:45:37	7
3663329	99	28	26,2	cyclictest	3991566	-21	kworker/u16:0+events_unbound	21:51:54	6
3663329	99	28	26,2	cyclictest	3830077	-21	kworker/u16:0+events_unbound	20:44:31	6
3663329	99	28	26,2	cyclictest	3801584	-21	kworker/u16:2+events_unbound	20:33:50	6
3663329	99	28	26,2	cyclictest	3743889	-21	kworker/u16:3+events_unbound	20:16:50	6
3663329	99	28	26,2	cyclictest	3743889	-21	kworker/u16:3+events_unbound	20:16:50	6
3662971	2	28	18,7	sleep4	0	-21	swapper/4	19:07:29	4
3663334	99	27	26,0	cyclictest	0	-21	swapper/7	23:40:01	7
3663334	99	27	26,0	cyclictest	0	-21	swapper/7	23:40:01	7
3663334	99	27	26,0	cyclictest	0	-21	swapper/7	20:12:55	7
3663334	99	27	22,4	cyclictest	114995	-21	latency_hist	23:58:12	7
3663329	99	27	25,2	cyclictest	4125231	-21	kworker/u16:0+events_unbound	23:36:53	6
3663329	99	27	25,2	cyclictest	3957781	-21	kworker/u16:2+events_unbound	21:37:07	6
3663329	99	27	25,2	cyclictest	3830077	-21	kworker/u16:0+flush-8:0	21:19:10	6
3663329	99	27	25,2	cyclictest	3830077	-21	kworker/u16:0+events_unbound	21:10:19	6
3933534	2	26	0,1	chrt	3933535	-21	idleruntime-cro	21:23:12	7
3663334	99	26	25,0	cyclictest	0	-21	swapper/7	23:08:04	7
3663334	99	26	25,0	cyclictest	0	-21	swapper/7	21:33:05	7
3663334	99	26	25,0	cyclictest	0	-21	swapper/7	20:44:35	7
3663329	99	26	24,2	cyclictest	4125231	-21	kworker/u16:0+flush-8:0	23:41:45	6
3663329	99	26	24,2	cyclictest	4125231	-21	kworker/u16:0+flush-8:0	23:41:45	6
3663329	99	26	24,2	cyclictest	4125231	-21	kworker/u16:0+flush-8:0	22:54:29	6
3663329	99	26	24,2	cyclictest	3743889	-21	kworker/u16:3+flush-8:0	20:08:50	6
3663329	99	26	24,2	cyclictest	3685154	-21	kworker/u16:1+flush-8:0	19:41:08	6
3663329	99	26	23,2	cyclictest	4125231	-21	kworker/u16:0+events_unbound	23:43:16	6
3663326	99	26	22,3	cyclictest	3878184	-21	kworker/u16:1+flush-8:0	21:13:37	5
3663324	99	26	0,16	cyclictest	0	-21	swapper/4	23:28:36	4
3663334	99	25	24,0	cyclictest	0	-21	swapper/7	23:58:13	7
3663334	99	25	24,0	cyclictest	0	-21	swapper/7	23:16:45	7
3663334	99	25	24,0	cyclictest	0	-21	swapper/7	21:24:39	7
3663334	99	25	24,0	cyclictest	0	-21	swapper/7	19:51:51	7
3663329	99	25	23,2	cyclictest	3878184	-21	kworker/u16:1+events_unbound	21:29:49	6
3663329	99	25	22,2	cyclictest	3743889	-21	kworker/u16:3+events_unbound	20:23:13	6
3663326	99	25	22,2	cyclictest	4125231	-21	kworker/u16:0+flush-8:0	23:43:29	5
3663334	99	24	23,0	cyclictest	0	-21	swapper/7	22:04:25	7
3663334	99	24	23,0	cyclictest	0	-21	swapper/7	21:12:53	7
3663334	99	24	23,0	cyclictest	0	-21	swapper/7	19:56:58	7
3663329	99	24	22,2	cyclictest	16909	-21	kworker/u16:3+events_unbound	23:20:26	6
3663334	99	23	22,0	cyclictest	0	-21	swapper/7	23:37:44	7
3663334	99	23	22,0	cyclictest	0	-21	swapper/7	22:00:30	7
3663334	99	23	22,0	cyclictest	0	-21	swapper/7	19:38:36	7
3663334	99	23	22,0	cyclictest	0	-21	swapper/7	19:33:03	7
3663334	99	23	21,1	cyclictest	0	-21	swapper/7	21:57:36	7
3663329	99	23	21,2	cyclictest	3878184	-21	kworker/u16:1+events_unbound	21:05:51	6
3663329	99	23	21,2	cyclictest	3743889	-21	kworker/u16:3+events_unbound	22:38:54	6
3663329	99	23	21,2	cyclictest	3743889	-21	kworker/u16:3+events_unbound	22:05:12	6
3663326	99	23	20,2	cyclictest	3743889	-21	kworker/u16:3+flush-8:0	20:08:30	5
3663334	99	22	21,0	cyclictest	0	-21	swapper/7	23:28:47	7
3663334	99	22	21,0	cyclictest	0	-21	swapper/7	22:48:17	7
3663334	99	22	21,0	cyclictest	0	-21	swapper/7	22:25:28	7
3663334	99	22	21,0	cyclictest	0	-21	swapper/7	20:56:11	7
3663334	99	22	21,0	cyclictest	0	-21	swapper/7	20:13:52	7
3663334	99	22	21,0	cyclictest	0	-21	swapper/7	20:13:52	7
3663334	99	22	21,0	cyclictest	0	-21	swapper/7	20:04:27	7
3663334	99	22	21,0	cyclictest	0	-21	swapper/7	20:01:39	7
3663334	99	22	21,0	cyclictest	0	-21	swapper/7	00:35:41	7
3663334	99	22	21,0	cyclictest	0	-21	swapper/7	00:25:33	7
3663329	99	22	20,2	cyclictest	2952171	-21	kworker/u16:3+events_unbound	19:13:07	6
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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