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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 May 14, 2025 12:43:36)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
1944011	2	62	51,7	sleep5	0	-21	swapper/5	15:35:01	5
1943919	2	53	20,29	sleep7	0	-21	swapper/7	15:33:42	7
1943887	2	51	41,7	sleep4	0	-21	swapper/4	15:33:15	4
1944411	99	48	0,46	cyclictest	2616311	-21	latency_hist	21:06:21	7
1944077	2	44	34,7	sleep6	0	-21	swapper/6	15:35:58	6
1944411	99	36	32,3	cyclictest	2102264	-21	latency_hist	16:51:21	7
1944411	99	35	0,33	cyclictest	2215152	-21	latency_hist	17:46:21	7
1944411	99	34	0,32	cyclictest	2286936	-21	latency_hist	18:21:21	7
1944411	99	33	0,31	cyclictest	1999438	-21	latency_hist	16:01:21	7
1944405	99	32	30,2	cyclictest	2369712	-21	kworker/u16:5+events_unbound	19:53:34	5
1944405	99	31	29,2	cyclictest	2163921	-21	kworker/u16:3+events_unbound	18:53:34	5
1944405	99	31	27,3	cyclictest	2451882	-21	fwupd	19:42:44	5
2587457	2	30	0,1	chrt	2587454	-21	kernelversion	20:51:35	7
2587457	2	30	0,1	chrt	2587454	-21	kernelversion	20:51:35	7
1944411	99	30	28,1	cyclictest	0	-21	swapper/7	16:26:22	7
1944405	99	30	27,2	cyclictest	2409765	-21	kworker/u16:6+events_unbound	19:26:34	5
2539519	2	29	0,1	chrt	2539520	-21	tr	20:26:43	7
1951206	2	29	0,0	chrt	0	-21	swapper/4	15:36:43	4
1944409	99	29	26,2	cyclictest	2009669	-21	kworker/u16:0+flush-8:0	16:14:22	6
1944405	99	29	26,2	cyclictest	2080689	-21	kworker/u16:2+flush-8:0	19:01:37	5
2205095	2	28	0,1	chrt	2205098	-21	sed	17:41:21	7
1944405	99	28	26,2	cyclictest	2533952	-21	kworker/u16:2+events_unbound	20:54:30	5
1944405	99	28	26,2	cyclictest	2533952	-21	kworker/u16:2+events_unbound	20:54:30	5
1944405	99	28	26,2	cyclictest	2533952	-21	kworker/u16:2+events_unbound	20:25:23	5
1944405	99	28	26,2	cyclictest	2369141	-21	kworker/u16:1+events_unbound	19:14:33	5
1944405	99	28	26,2	cyclictest	2163921	-21	kworker/u16:3+events_unbound	19:09:51	5
1944401	99	28	25,2	cyclictest	2080689	-21	kworker/u16:2+events_unbound	16:56:38	4
1944401	99	28	25,2	cyclictest	2080689	-21	kworker/u16:2+events_unbound	16:56:38	4
1944401	99	28	23,4	cyclictest	2451887	-21	packagekitd	19:42:43	4
1944409	99	27	25,2	cyclictest	2533952	-21	kworker/u16:2+flush-8:0	21:01:38	6
1944409	99	27	25,2	cyclictest	2409765	-21	kworker/u16:6+flush-8:0	20:56:21	6
1944409	99	27	25,2	cyclictest	2409765	-21	kworker/u16:6+flush-8:0	20:56:21	6
1944409	99	27	25,2	cyclictest	2080689	-21	kworker/u16:2+flush-8:0	17:24:31	6
1944409	99	27	25,2	cyclictest	1988205	-21	kworker/u16:4+events_unbound	16:04:23	6
1944405	99	27	25,2	cyclictest	2544506	-21	kworker/u16:1+flush-8:0	20:50:30	5
1944405	99	27	25,2	cyclictest	2409765	-21	kworker/u16:6+events_unbound	19:38:23	5
1944405	99	27	25,2	cyclictest	2265448	-21	kworker/u16:1+events_unbound	18:39:30	5
1944405	99	27	25,2	cyclictest	2132644	-21	kworker/u16:0+events_unbound	17:19:38	5
1944405	99	27	25,2	cyclictest	2029273	-21	kworker/u16:2+flush-8:0	16:23:35	5
1944405	99	27	25,2	cyclictest	2009669	-21	kworker/u16:0+events_unbound	16:13:23	5
1944405	99	27	24,2	cyclictest	2409765	-21	kworker/u16:6+events_unbound	19:32:22	5
1944409	99	26	24,2	cyclictest	2544506	-21	kworker/u16:1+flush-8:0	20:31:42	6
1944409	99	26	24,2	cyclictest	2132644	-21	kworker/u16:0+flush-8:0	17:43:27	6
1944409	99	26	22,3	cyclictest	2163921	-21	kworker/u16:3+events_unbound	17:51:41	6
1944405	99	26	24,2	cyclictest	2585543	-21	kworker/u16:0+flush-8:0	21:00:55	5
1944405	99	26	24,2	cyclictest	2544506	-21	kworker/u16:1+events_unbound	20:46:18	5
1944405	99	26	24,2	cyclictest	2544506	-21	kworker/u16:1+events_unbound	20:39:06	5
1944405	99	26	24,2	cyclictest	2503603	-21	kworker/u16:1+events_unbound	20:17:30	5
1944405	99	26	24,2	cyclictest	2409765	-21	kworker/u16:6+events_unbound	21:01:30	5
1944405	99	26	24,2	cyclictest	2409765	-21	kworker/u16:6+events_unbound	20:11:03	5
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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