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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 Wed Jun 03, 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
3183158	2	98	0,1	sleep7	3183157	-21	ssh	21:44:12	7
2880649	2	58	48,7	sleep4	0	-21	swapper/4	19:04:48	4
2880555	2	50	39,8	sleep5	0	-21	swapper/5	19:03:29	5
2881070	99	48	46,2	cyclictest	3399056	-21	kworker/u16:1+events_unbound	23:27:13	4
2881070	99	41	39,2	cyclictest	3305422	-21	kworker/u16:0+events_unbound	22:56:46	4
2880777	2	41	3,32	sleep7	0	-21	swapper/7	19:06:35	7
2881070	99	40	38,2	cyclictest	3570612	-21	kworker/u16:3+flush-8:0	00:31:45	4
2881070	99	38	36,2	cyclictest	2992615	-21	kworker/u16:1+events_unbound	22:26:46	4
2881070	99	38	35,2	cyclictest	3206303	-21	kworker/u16:2+events_unbound	21:55:13	4
2881070	99	38	35,2	cyclictest	2808535	-21	kworker/u16:0+events_unbound	19:41:46	4
2881070	99	37	35,2	cyclictest	2904714	-21	kworker/u16:3+flush-8:0	21:15:50	4
2881070	99	37	34,2	cyclictest	3305422	-21	kworker/u16:0+flush-8:0	22:56:21	4
2881070	99	37	34,2	cyclictest	3305422	-21	kworker/u16:0+flush-8:0	22:56:21	4
2881070	99	37	34,2	cyclictest	3305422	-21	kworker/u16:0+events_unbound	23:11:14	4
2881070	99	37	34,2	cyclictest	3305422	-21	kworker/u16:0+events_unbound	00:26:46	4
2881070	99	36	35,1	cyclictest	3206303	-21	kworker/u16:2+events_unbound	22:23:50	4
2881070	99	36	34,2	cyclictest	3305422	-21	kworker/u16:0+flush-8:0	23:20:45	4
2881070	99	36	34,2	cyclictest	3305422	-21	kworker/u16:0+events_unbound	23:56:21	4
2881070	99	36	33,2	cyclictest	2992615	-21	kworker/u16:1+events_unbound	20:21:46	4
2881076	99	35	33,2	cyclictest	3329494	-21	kworker/u16:5+flush-8:0	23:11:44	6
2881070	99	35	33,2	cyclictest	3305422	-21	kworker/u16:0+flush-8:0	00:09:13	4
2881070	99	35	32,3	cyclictest	2963716	-21	kworker/u16:0+flush-8:0	20:31:44	4
2881070	99	34	33,1	cyclictest	3206303	-21	kworker/u16:2+events_unbound	22:16:33	4
2881070	99	34	33,1	cyclictest	3206303	-21	kworker/u16:2+events_unbound	22:16:33	4
2881070	99	34	32,2	cyclictest	3206303	-21	kworker/u16:2+flush-8:0	22:01:34	4
2881070	99	34	32,2	cyclictest	2904714	-21	kworker/u16:3+events_unbound	23:04:10	4
2881070	99	34	31,2	cyclictest	2904714	-21	kworker/u16:3+flush-8:0	22:17:09	4
2881070	99	33	31,2	cyclictest	3522088	-21	kworker/u16:2+events_unbound	00:22:26	4
2881070	99	33	31,2	cyclictest	3329494	-21	kworker/u16:5+flush-8:0	23:32:26	4
2881070	99	33	31,2	cyclictest	3100354	-21	kworker/u16:0+events_unbound	21:44:43	4
2881070	99	33	31,2	cyclictest	2904714	-21	kworker/u16:3+events_unbound	21:36:41	4
2881070	99	33	31,2	cyclictest	2904714	-21	kworker/u16:3+events_unbound	21:36:41	4
2881070	99	33	31,2	cyclictest	2904714	-21	kworker/u16:3+events_unbound	21:29:03	4
2881070	99	33	30,2	cyclictest	3522088	-21	kworker/u16:2+events_unbound	00:11:53	4
2881070	99	33	30,2	cyclictest	2904714	-21	kworker/u16:3+events_unbound	21:16:45	4
2881076	99	32	30,2	cyclictest	2904714	-21	kworker/u16:3+events_unbound	22:32:05	6
2881070	99	32	30,2	cyclictest	3522088	-21	kworker/u16:2+flush-8:0	00:18:26	4
2881070	99	32	30,2	cyclictest	3399056	-21	kworker/u16:1+flush-8:0	23:36:53	4
2881070	99	32	30,2	cyclictest	3329494	-21	kworker/u16:5+events_unbound	00:06:42	4
2881070	99	32	30,2	cyclictest	3305422	-21	kworker/u16:0+flush-8:0	23:58:18	4
2881070	99	32	30,2	cyclictest	2992615	-21	kworker/u16:1+flush-8:0	22:10:26	4
2881070	99	32	30,2	cyclictest	2992615	-21	kworker/u16:1+events_unbound	21:37:35	4
2881070	99	32	30,2	cyclictest	2904714	-21	kworker/u16:3+events_unbound	22:38:30	4
2881076	99	31	29,2	cyclictest	3305422	-21	kworker/u16:0+events_unbound	23:42:01	6
2881073	99	31	28,2	cyclictest	3305422	-21	kworker/u16:0+flush-8:0	23:56:49	5
2881070	99	31	29,2	cyclictest	3206303	-21	kworker/u16:2+events_unbound	22:02:58	4
2881070	99	30	28,2	cyclictest	3399056	-21	kworker/u16:1+events_unbound	23:46:05	4
2881070	99	30	28,2	cyclictest	3329494	-21	kworker/u16:5+events_unbound	23:48:06	4
2881070	99	30	28,2	cyclictest	3329494	-21	kworker/u16:5+events_unbound	22:48:42	4
2881070	99	30	28,2	cyclictest	2992615	-21	kworker/u16:1+flush-8:0	21:10:43	4
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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