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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 Fri May 02, 2025 00:43:35)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
800978	2	60	49,7	sleep6	0	-21	swapper/6	03:35:38	6
801393	99	55	0,53	cyclictest	1379140	-21	latency_hist	08:17:11	7
800997	2	53	20,29	sleep7	0	-21	swapper/7	03:35:55	7
800947	2	48	38,7	sleep5	0	-21	swapper/5	03:35:13	5
801380	99	43	40,2	cyclictest	770901	-21	kworker/u16:1+flush-8:0	03:47:12	4
801078	2	43	33,7	sleep4	0	-21	swapper/4	03:37:05	4
801380	99	41	39,2	cyclictest	1124266	-21	kworker/u16:1+flush-8:0	06:27:12	4
923265	2	38	0,0	sleep7	923266	-21	grep	04:32:35	7
923265	2	38	0,0	sleep7	923266	-21	grep	04:32:35	7
801389	99	33	31,2	cyclictest	770902	-21	kworker/u16:3+events_unbound	03:56:23	6
801389	99	32	30,2	cyclictest	1430389	-21	kworker/u16:1+events_unbound	08:57:46	6
801389	99	32	30,2	cyclictest	1296177	-21	kworker/u16:2+events_unbound	07:50:23	6
801389	99	32	30,2	cyclictest	1286841	-21	kworker/u16:1+events_unbound	07:36:22	6
801389	99	32	30,2	cyclictest	1163010	-21	kworker/u16:5+events_unbound	06:31:22	6
801389	99	31	29,2	cyclictest	1276564	-21	kworker/u16:0+events_unbound	08:56:26	6
801389	99	31	29,2	cyclictest	1004946	-21	kworker/u16:3+events_unbound	05:41:55	6
801380	99	31	28,2	cyclictest	1173943	-21	kworker/u16:1+flush-8:0	06:37:42	4
801393	99	30	0,28	cyclictest	1481670	-21	latency_hist	09:07:11	7
801389	99	30	28,2	cyclictest	781558	-21	kworker/u16:2+events_unbound	04:40:14	6
801389	99	30	28,2	cyclictest	770901	-21	kworker/u16:1+events_unbound	04:17:29	6
801389	99	30	28,2	cyclictest	1399515	-21	kworker/u16:2+events_unbound	09:03:22	6
801389	99	30	28,2	cyclictest	1245946	-21	kworker/u16:5+events_unbound	07:17:46	6
801389	99	30	28,2	cyclictest	1234716	-21	kworker/u16:4+events_unbound	07:42:47	6
801389	99	30	28,2	cyclictest	1234716	-21	kworker/u16:4+events_unbound	07:42:47	6
801389	99	30	27,2	cyclictest	958820	-21	kworker/u16:1+events_unbound	05:02:15	6
801389	99	29	27,2	cyclictest	1367901	-21	kworker/u16:5+events_unbound	08:31:23	6
801389	99	29	27,2	cyclictest	1276564	-21	kworker/u16:0+events_unbound	07:29:03	6
801389	99	29	27,2	cyclictest	1173943	-21	kworker/u16:1+events_unbound	06:52:38	6
801380	99	29	27,2	cyclictest	1137551	-21	kworker/u16:3+events_unbound	06:27:27	4
801393	99	28	0,26	cyclictest	1266477	-21	latency_hist	07:22:12	7
801389	99	28	26,2	cyclictest	908529	-21	kworker/u16:0+events_unbound	04:46:15	6
801389	99	28	26,2	cyclictest	1367901	-21	kworker/u16:5+events_unbound	08:14:11	6
801389	99	28	26,2	cyclictest	1296177	-21	kworker/u16:2+events_unbound	07:58:23	6
801389	99	28	26,2	cyclictest	1276564	-21	kworker/u16:0+events_unbound	08:40:21	6
801389	99	28	26,2	cyclictest	1082225	-21	kworker/u16:0+events_unbound	06:09:11	6
801389	99	28	26,2	cyclictest	1082225	-21	kworker/u16:0+events_unbound	06:09:11	6
801389	99	28	25,2	cyclictest	1082760	-21	kworker/u16:2+events_unbound	06:57:29	6
801393	99	27	0,25	cyclictest	921	-21	dbus-daemon	07:12:11	7
801389	99	27	25,2	cyclictest	916736	-21	kworker/u16:3+events_unbound	04:30:14	6
801389	99	27	25,2	cyclictest	1399515	-21	kworker/u16:2+events_unbound	08:48:15	6
801389	99	27	24,2	cyclictest	1137551	-21	kworker/u16:3+flush-8:0	06:32:27	6
801389	99	27	24,2	cyclictest	1040991	-21	kworker/u16:4+events_unbound	05:57:15	6
888272	2	26	0,0	sleep4	0	-21	swapper/4	04:17:26	4
801393	99	26	22,2	cyclictest	1019566	-21	ntpq	05:17:42	7
801389	99	26	24,2	cyclictest	908529	-21	kworker/u16:0+events_unbound	04:58:22	6
801389	99	26	24,2	cyclictest	867522	-21	kworker/u16:0+events_unbound	04:08:11	6
801389	99	26	24,2	cyclictest	1124266	-21	kworker/u16:1+events_unbound	06:16:15	6
801380	99	26	24,2	cyclictest	908529	-21	kworker/u16:0+flush-8:0	04:57:12	4
878375	2	25	0,1	chrt	0	-21	swapper/6	04:12:31	6
801389	99	25	23,2	cyclictest	999146	-21	kworker/u16:1+flush-8:0	05:12:46	6
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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