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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 24, 2026 00:43:29)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
2417536	2	65	0,1	sleep7	2417537	-21	rm	23:51:39	7
1781955	2	54	20,29	sleep7	0	-21	swapper/7	19:06:29	7
1782189	2	46	20,8	sleep5	0	-21	swapper/5	19:09:48	5
1782188	2	44	33,8	sleep4	0	-21	swapper/4	19:09:47	4
1782471	99	34	29,4	cyclictest	647	-21	systemd-journal	19:14:59	7
1782464	99	34	32,2	cyclictest	2150968	-21	kworker/u16:0+events_unbound	23:51:07	5
1782464	99	32	30,2	cyclictest	2042734	-21	kworker/u16:2+events_unbound	21:24:56	5
1782464	99	32	30,2	cyclictest	2019353	-21	kworker/u16:3+events_unbound	21:59:55	5
1782462	99	31	29,2	cyclictest	2042734	-21	kworker/u16:2+events_unbound	22:49:22	4
1782133	2	31	19,8	sleep6	0	-21	swapper/6	19:09:01	6
1782464	99	30	29,1	cyclictest	2150968	-21	kworker/u16:0+events_unbound	23:36:30	5
1782464	99	30	28,2	cyclictest	2431429	-21	kworker/u16:1+events_unbound	00:06:31	5
1782464	99	30	28,2	cyclictest	2346554	-21	kworker/u16:1+events_unbound	23:34:50	5
1782464	99	30	28,2	cyclictest	2150968	-21	kworker/u16:0+events_unbound	22:34:44	5
1782464	99	30	28,2	cyclictest	2066954	-21	kworker/u16:4+events_unbound	22:18:06	5
1782464	99	30	28,2	cyclictest	2042734	-21	kworker/u16:2+events_unbound	22:01:09	5
1782464	99	30	28,2	cyclictest	1989461	-21	kworker/u16:1+events_unbound	21:18:08	5
1782471	99	29	26,1	cyclictest	0	-21	swapper/7	22:45:14	7
1782464	99	29	28,1	cyclictest	2468348	-21	kworker/u16:3+events_unbound	00:22:35	5
1782464	99	29	28,1	cyclictest	2395497	-21	kworker/u16:2+events_unbound	00:16:10	5
1782464	99	29	27,2	cyclictest	2515105	-21	kworker/u16:4+events_unbound	00:38:15	5
1782464	99	29	27,2	cyclictest	2150968	-21	kworker/u16:0+events_unbound	00:34:16	5
1782464	99	29	27,2	cyclictest	2042734	-21	kworker/u16:2+events_unbound	23:04:44	5
1782464	99	29	27,2	cyclictest	2042734	-21	kworker/u16:2+events_unbound	23:04:44	5
1782464	99	28	26,2	cyclictest	2066954	-21	kworker/u16:4+flush-8:0	22:25:18	5
1782464	99	28	26,2	cyclictest	2042734	-21	kworker/u16:2+events_unbound	22:07:19	5
1782464	99	28	26,2	cyclictest	2042734	-21	kworker/u16:2+events_unbound	21:53:20	5
1782464	99	28	26,2	cyclictest	2019353	-21	kworker/u16:3+events_unbound	21:27:19	5
1782464	99	27	26,1	cyclictest	2260979	-21	kworker/u16:1+events_unbound	22:54:15	5
1782464	99	27	25,2	cyclictest	2320524	-21	kworker/u16:3+events_unbound	23:17:20	5
1782464	99	27	25,2	cyclictest	2150968	-21	kworker/u16:0+events_unbound	23:47:16	5
1782464	99	27	25,2	cyclictest	2150968	-21	kworker/u16:0+events_unbound	23:27:07	5
1782464	99	27	25,2	cyclictest	2019353	-21	kworker/u16:3+events_unbound	21:42:47	5
1782464	99	27	25,2	cyclictest	1783552	-21	kworker/u16:2+flush-8:0	19:25:27	5
1782464	99	27	24,2	cyclictest	1931462	-21	kworker/u16:1+flush-8:0	20:35:16	5
1782464	99	26	25,1	cyclictest	2042734	-21	kworker/u16:2+events_unbound	21:38:31	5
1782464	99	26	24,2	cyclictest	2260979	-21	kworker/u16:1+events_unbound	23:10:34	5
1782464	99	26	24,2	cyclictest	2150968	-21	kworker/u16:0+events_unbound	23:41:23	5
1782464	99	26	24,2	cyclictest	2066954	-21	kworker/u16:4+events_unbound	22:22:31	5
1782464	99	26	24,2	cyclictest	2042734	-21	kworker/u16:2+events_unbound	21:33:05	5
1782464	99	26	23,2	cyclictest	2150968	-21	kworker/u16:0+events_unbound	22:55:08	5
1782464	99	26	23,2	cyclictest	1792340	-21	kworker/u16:4+events_unbound	20:15:12	5
1782471	99	25	24,0	cyclictest	0	-21	swapper/7	22:59:58	7
1782471	99	25	24,0	cyclictest	0	-21	swapper/7	22:25:27	7
1782464	99	25	23,2	cyclictest	2260979	-21	kworker/u16:1+events_unbound	23:08:35	5
1782464	99	25	23,2	cyclictest	2260979	-21	kworker/u16:1+events_unbound	23:08:35	5
1782464	99	25	23,2	cyclictest	2150968	-21	kworker/u16:0+events_unbound	00:26:06	5
1782464	99	25	23,2	cyclictest	2150968	-21	kworker/u16:0+events_unbound	00:03:18	5
1782464	99	25	23,2	cyclictest	2066954	-21	kworker/u16:4+events_unbound	21:49:06	5
1782464	99	25	23,2	cyclictest	2042734	-21	kworker/u16:2+events_unbound	22:48:31	5
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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