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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 Tue Jun 30, 2026 00:43:33)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
1263157	2	99	0,1	sleep7	1263158	-21	ssh	21:27:56	7
978573	2	59	49,7	sleep4	0	-21	swapper/4	19:07:40	4
978596	2	51	16,30	sleep7	0	-21	swapper/7	19:07:59	7
978520	2	48	38,7	sleep5	0	-21	swapper/5	19:06:53	5
978963	99	39	33,5	cyclictest	1147294	-21	latency_hist	20:34:09	7
978963	99	38	32,5	cyclictest	1568593	-21	latency_hist	23:34:09	7
1433275	2	38	0,0	sleep7	1433273	-21	ssh	22:36:56	7
978956	99	37	35,2	cyclictest	1690519	-21	kworker/u16:4+events_unbound	00:26:36	5
978956	99	37	35,2	cyclictest	1421534	-21	kworker/u16:3+events_unbound	23:26:27	5
978956	99	37	34,2	cyclictest	1203071	-21	kworker/u16:1+events_unbound	21:34:12	5
978948	99	37	35,2	cyclictest	1298380	-21	kworker/u16:1+flush-8:0	22:04:09	4
978948	99	37	33,3	cyclictest	1568634	-21	kworker/u16:4+flush-8:0	23:49:09	4
978963	99	36	0,34	cyclictest	1458948	-21	latency_hist	22:49:09	7
978956	99	36	34,2	cyclictest	1349489	-21	kworker/u16:2+events_unbound	23:17:27	5
978956	99	36	34,2	cyclictest	1349489	-21	kworker/u16:2+events_unbound	23:17:27	5
978956	99	36	34,2	cyclictest	1227305	-21	kworker/u16:5+events_unbound	21:52:28	5
978956	99	35	33,2	cyclictest	1639174	-21	kworker/u16:5+events_unbound	00:12:08	5
978956	99	35	33,2	cyclictest	1334558	-21	kworker/u16:0+events_unbound	22:30:27	5
978956	99	35	33,2	cyclictest	1334558	-21	kworker/u16:0+events_unbound	22:30:27	5
978956	99	35	33,2	cyclictest	1298380	-21	kworker/u16:1+events_unbound	23:36:07	5
978956	99	35	33,2	cyclictest	1298380	-21	kworker/u16:1+events_unbound	23:09:03	5
978956	99	35	33,2	cyclictest	1203071	-21	kworker/u16:1+events_unbound	21:14:04	5
978956	99	34	32,2	cyclictest	1703147	-21	kworker/u16:1+events_unbound	00:36:58	5
978956	99	34	32,2	cyclictest	1666496	-21	kworker/u16:0+events_unbound	00:20:48	5
978956	99	34	32,2	cyclictest	1630027	-21	kworker/u16:3+events_unbound	00:01:22	5
978956	99	33	31,2	cyclictest	1581235	-21	kworker/u16:2+events_unbound	23:55:04	5
978956	99	33	31,2	cyclictest	1581235	-21	kworker/u16:2+events_unbound	23:55:04	5
978956	99	33	31,2	cyclictest	1544726	-21	kworker/u16:0+events_unbound	23:46:32	5
978956	99	33	31,2	cyclictest	1421534	-21	kworker/u16:3+events_unbound	22:56:27	5
978956	99	33	31,2	cyclictest	1373645	-21	kworker/u16:3+events_unbound	22:17:08	5
978956	99	33	31,2	cyclictest	1298380	-21	kworker/u16:1+events_unbound	23:24:02	5
978956	99	33	31,2	cyclictest	1298380	-21	kworker/u16:1+events_unbound	23:24:02	5
978956	99	33	31,2	cyclictest	1298380	-21	kworker/u16:1+events_unbound	23:01:35	5
978956	99	33	31,2	cyclictest	1298380	-21	kworker/u16:1+events_unbound	22:36:31	5
978956	99	33	31,2	cyclictest	1041227	-21	kworker/u16:2+flush-8:0	21:15:03	5
978956	99	33	30,2	cyclictest	1334558	-21	kworker/u16:0+events_unbound	22:19:11	5
978948	99	33	31,2	cyclictest	969150	-21	kworker/u16:1+flush-8:0	19:14:39	4
978956	99	32	30,2	cyclictest	1581235	-21	kworker/u16:2+events_unbound	23:43:03	5
978956	99	32	30,2	cyclictest	1421534	-21	kworker/u16:3+events_unbound	22:46:03	5
978956	99	32	30,2	cyclictest	1334558	-21	kworker/u16:0+events_unbound	22:28:47	5
978956	99	32	30,2	cyclictest	1298380	-21	kworker/u16:1+events_unbound	23:12:42	5
978956	99	32	30,2	cyclictest	1298380	-21	kworker/u16:1+events_unbound	22:52:40	5
978956	99	32	30,2	cyclictest	1298380	-21	kworker/u16:1+events_unbound	22:11:00	5
978956	99	32	30,2	cyclictest	1276452	-21	kworker/u16:3+events_unbound	21:45:32	5
978956	99	32	30,2	cyclictest	1227305	-21	kworker/u16:5+events_unbound	21:44:08	5
978956	99	32	30,2	cyclictest	1041227	-21	kworker/u16:2+events_unbound	21:20:31	5
978956	99	31	29,2	cyclictest	1666496	-21	kworker/u16:0+events_unbound	00:18:43	5
978956	99	31	29,2	cyclictest	1630027	-21	kworker/u16:3+events_unbound	00:30:31	5
978956	99	31	29,2	cyclictest	1349489	-21	kworker/u16:2+events_unbound	22:07:47	5
978956	99	31	29,2	cyclictest	1041227	-21	kworker/u16:2+events_unbound	21:26:56	5
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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