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Default latency plot of system in rack #0, slot #5

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 100 highest latencies:

System rack0slot5.osadl.org (updated Tue Jan 13, 2026 00:43:49)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
55154	99	552	10,27	cyclictest	0	-21	swapper/11	21:47:02	3
55109	99	536	88,447	cyclictest	239112	-21	kworker/1:2+i915-unordered	22:48:02	1
55109	99	517	515,1	cyclictest	94031	-21	kworker/1:1+i915-unordered	20:12:02	1
55160	99	516	26,489	cyclictest	0	-21	swapper/13	20:56:02	5
55109	99	514	10,44	cyclictest	0	-21	swapper/1	22:41:02	1
55117	99	513	511,2	cyclictest	171175	-21	kworker/3:2+i915-unordered	21:47:02	9
55109	99	512	510,1	cyclictest	179858	-21	kworker/1:2+i915-unordered	21:53:02	1
55109	99	512	510,1	cyclictest	171323	-21	kworker/1:0+i915-unordered	21:33:02	1
55168	99	505	504,1	cyclictest	302637	-21	kworker/15:2+i915-unordered	00:10:02	7
55160	99	505	505,0	cyclictest	81197	-21	kworker/13:1+i915-unordered	19:55:02	5
55109	99	504	14,489	cyclictest	34	-21	ksoftirqd/1	21:13:02	1
55160	99	501	499,1	cyclictest	0	-21	swapper/13	00:32:02	5
55109	99	499	499,0	cyclictest	0	-21	swapper/1	19:55:02	1
55109	99	499	39,460	cyclictest	0	-21	swapper/1	20:31:02	1
55109	99	498	37,460	cyclictest	0	-21	swapper/1	21:21:02	1
55109	99	493	17,475	cyclictest	0	-21	swapper/1	20:56:02	1
55109	99	492	16,475	cyclictest	0	-21	swapper/1	00:32:02	1
55165	99	483	481,1	cyclictest	201008	-21	kworker/14:1+i915-unordered	22:11:02	6
55158	99	480	478,1	cyclictest	154338	-21	kworker/12:0+i915-unordered	21:21:02	4
55109	99	475	19,455	cyclictest	0	-21	swapper/1	20:05:02	1
55130	99	474	24,29	cyclictest	0	-21	swapper/6	21:34:25	12
55130	99	471	25,443	cyclictest	0	-21	swapper/6	19:59:25	12
55130	99	471	25,29	cyclictest	0	-21	swapper/6	22:11:24	12
55133	99	468	438,30	cyclictest	0	-21	swapper/7	00:10:02	13
55130	99	468	20,28	cyclictest	0	-21	swapper/6	23:58:24	12
55109	99	467	22,30	cyclictest	0	-21	swapper/1	22:51:02	1
55130	99	464	18,29	cyclictest	0	-21	swapper/6	20:31:48	12
55109	99	464	14,446	cyclictest	0	-21	swapper/1	23:04:24	1
55109	99	464	0,25	cyclictest	0	-21	swapper/1	00:38:02	1
55133	99	463	16,30	cyclictest	0	-21	swapper/7	20:18:25	13
55109	99	463	1,0	cyclictest	0	-21	swapper/1	00:10:02	1
55114	99	462	19,30	cyclictest	0	-21	swapper/2	20:20:02	8
55130	99	461	12,30	cyclictest	0	-21	swapper/6	00:25:47	12
55130	99	461	12,29	cyclictest	0	-21	swapper/6	23:02:25	12
55122	99	460	10,30	cyclictest	0	-21	swapper/4	21:37:23	10
55130	99	459	9,30	cyclictest	0	-21	swapper/6	23:40:24	12
55122	99	459	12,30	cyclictest	0	-21	swapper/4	21:16:02	10
55136	99	457	454,3	cyclictest	1802	-21	snmpd	00:20:35	14
55122	99	457	456,1	cyclictest	1802	-21	snmpd	23:11:57	10
55122	99	457	10,445	cyclictest	0	-21	swapper/4	21:30:48	10
55122	99	457	10,29	cyclictest	0	-21	swapper/4	19:41:46	10
55165	99	455	453,1	cyclictest	94148	-21	kworker/14:2+i915-unordered	20:05:02	6
55158	99	455	455,0	cyclictest	158616	-21	kworker/12:2+i915-unordered	21:13:02	4
55122	99	454	10,30	cyclictest	0	-21	swapper/4	21:25:02	10
55154	99	453	3,30	cyclictest	0	-21	swapper/11	21:15:25	3
55122	99	453	7,30	cyclictest	0	-21	swapper/4	23:35:25	10
55122	99	453	7,30	cyclictest	0	-21	swapper/4	23:35:25	10
55130	99	452	26,28	cyclictest	0	-21	swapper/6	20:23:25	12
55158	99	451	451,0	cyclictest	116058	-21	kworker/12:0+i915-unordered	20:31:02	4
55141	99	451	1,30	cyclictest	0	-21	swapper/9	23:19:46	15
55109	99	451	450,1	cyclictest	0	-21	swapper/1	21:47:02	1
55106	99	451	9,29	cyclictest	0	-21	swapper/0	20:04:25	0
55126	99	449	0,448	cyclictest	0	-21	swapper/5	22:55:24	11
55136	99	448	0,29	cyclictest	0	-21	swapper/8	22:34:47	14
55126	99	448	26,421	cyclictest	0	-21	swapper/5	20:37:44	11
55126	99	448	26,421	cyclictest	0	-21	swapper/5	20:37:44	11
55106	99	448	2,30	cyclictest	0	-21	swapper/0	23:08:24	0
55154	99	447	24,422	cyclictest	0	-21	swapper/11	22:46:25	3
55141	99	447	26,420	cyclictest	0	-21	swapper/9	22:41:47	15
55136	99	447	0,446	cyclictest	0	-21	swapper/8	00:02:45	14
55126	99	447	25,421	cyclictest	0	-21	swapper/5	21:45:44	11
55117	99	447	26,420	cyclictest	0	-21	swapper/3	22:26:25	9
55109	99	447	445,1	cyclictest	115287	-21	kworker/1:2+i915-unordered	20:25:02	1
55109	99	447	0,27	cyclictest	0	-21	swapper/1	00:26:45	1
55106	99	447	23,29	cyclictest	0	-21	swapper/0	21:52:46	0
55160	99	446	0,29	cyclictest	0	-21	swapper/13	00:22:02	5
55136	99	446	443,2	cyclictest	213613	-21	kworker/u64:4+events_unbound	22:25:46	14
55136	99	446	443,2	cyclictest	205138	-21	kworker/u64:2+events_unbound	22:14:49	14
55136	99	446	443,2	cyclictest	106635	-21	kworker/u64:6+events_unbound	20:24:48	14
55114	99	446	442,3	cyclictest	1802	-21	snmpd	23:41:13	8
55130	99	445	19,30	cyclictest	0	-21	swapper/6	19:53:46	12
55109	99	445	26,418	cyclictest	0	-21	swapper/1	23:20:48	1
55109	99	445	24,420	cyclictest	0	-21	swapper/1	20:52:24	1
55109	99	445	24,420	cyclictest	0	-21	swapper/1	00:20:45	1
55136	99	444	444,0	cyclictest	0	-21	swapper/8	00:30:25	14
55136	99	444	443,1	cyclictest	0	-21	swapper/8	23:34:47	14
55136	99	444	443,1	cyclictest	0	-21	swapper/8	23:34:47	14
55130	99	444	17,30	cyclictest	0	-21	swapper/6	19:12:02	12
55109	99	444	24,419	cyclictest	0	-21	swapper/1	22:19:47	1
55141	99	443	442,1	cyclictest	697	50	irq/159-i915	21:53:02	15
55141	99	443	442,1	cyclictest	1802	-21	snmpd	19:34:36	15
55126	99	443	21,419	cyclictest	0	-21	swapper/5	23:41:02	11
55109	99	443	0,27	cyclictest	0	-21	swapper/1	21:02:02	1
55136	99	442	442,0	cyclictest	0	-21	swapper/8	00:27:23	14
55130	99	442	26,28	cyclictest	0	-21	swapper/6	00:33:18	12
55130	99	442	23,418	cyclictest	0	-21	swapper/6	22:57:46	12
55126	99	442	20,421	cyclictest	0	-21	swapper/5	21:55:25	11
55126	99	442	20,418	cyclictest	0	-21	swapper/5	21:39:45	11
55160	99	441	23,417	cyclictest	0	-21	swapper/13	23:56:02	5
55158	99	441	22,418	cyclictest	0	-21	swapper/12	00:08:57	4
55126	99	441	20,419	cyclictest	0	-21	swapper/5	22:33:24	11
55126	99	441	18,420	cyclictest	0	-21	swapper/5	00:21:46	11
55126	99	441	17,0	cyclictest	0	-21	swapper/5	21:20:24	11
55114	99	441	17,29	cyclictest	0	-21	swapper/2	21:06:02	8
55106	99	441	24,416	cyclictest	0	-21	swapper/0	20:53:45	0
55154	99	440	18,421	cyclictest	0	-21	swapper/11	21:12:45	3
55130	99	440	23,415	cyclictest	0	-21	swapper/6	20:38:24	12
55130	99	440	23,415	cyclictest	0	-21	swapper/6	20:38:24	12
55130	99	440	22,415	cyclictest	0	-21	swapper/6	23:50:46	12
55126	99	440	18,421	cyclictest	0	-21	swapper/5	00:00:25	11
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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