OSADL QA Farm on Real-time of Mainline Linux

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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 Sat Jun 20, 2026 00:43:47)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
4176876	99	545	23,521	cyclictest	0	-21	swapper/14	22:59:06	6
4176834	99	504	3,500	cyclictest	0	-21	swapper/4	00:21:06	10
4176837	99	499	498,1	cyclictest	164743	-21	kworker/5:0+i915-unordered	23:03:06	11
4176818	99	495	463,31	cyclictest	0	-21	swapper/0	00:00:06	0
4176831	99	494	493,1	cyclictest	0	-21	swapper/3	19:08:06	9
4176863	99	492	491,1	cyclictest	4127028	-21	kworker/11:3+i915-unordered	19:08:06	3
4176873	99	488	486,1	cyclictest	59985	-21	kworker/13:0+i915-unordered	20:54:06	5
4176837	99	488	457,31	cyclictest	0	-21	swapper/5	20:54:06	11
4176837	99	484	483,1	cyclictest	112447	-21	kworker/5:2+i915-unordered	21:49:06	11
4176850	99	483	481,2	cyclictest	221000	-21	kworker/8:1+i915-unordered	00:00:06	14
4176845	99	481	9,59	cyclictest	0	-21	swapper/7	21:37:27	13
4176831	99	474	474,0	cyclictest	4185513	-21	kworker/3:0+i915-unordered	19:29:06	9
4176831	99	474	474,0	cyclictest	4185513	-21	kworker/3:0+i915-unordered	19:29:06	9
4176863	99	473	473,0	cyclictest	0	-21	swapper/11	19:29:06	3
4176863	99	473	473,0	cyclictest	0	-21	swapper/11	19:29:06	3
4176826	99	472	9,462	cyclictest	0	-21	swapper/2	23:03:06	8
4176873	99	468	467,1	cyclictest	136481	-21	kworker/13:2+i915-unordered	22:24:06	5
4176873	99	468	467,1	cyclictest	0	-21	swapper/13	23:03:06	5
4176837	99	468	438,30	cyclictest	0	-21	swapper/5	22:24:06	11
4176842	99	459	458,1	cyclictest	156582	-21	kworker/6:0+i915-unordered	22:59:06	12
4176873	99	458	457,1	cyclictest	120436	-21	kworker/13:1+i915-unordered	21:56:06	5
4176856	99	457	456,1	cyclictest	697	50	irq/159-i915	23:03:06	2
4176873	99	454	452,2	cyclictest	0	-21	swapper/13	21:49:06	5
4176826	99	454	7,446	cyclictest	0	-21	swapper/2	22:24:06	8
4176834	99	451	8,30	cyclictest	0	-21	swapper/4	00:23:06	10
4176834	99	451	8,29	cyclictest	0	-21	swapper/4	22:49:06	10
4176845	99	449	3,29	cyclictest	0	-21	swapper/7	23:58:06	13
4176826	99	449	449,0	cyclictest	0	-21	swapper/2	19:29:06	8
4176826	99	449	449,0	cyclictest	0	-21	swapper/2	19:29:06	8
4176876	99	448	23,29	cyclictest	151	-21	ksoftirqd/14	19:55:06	6
4176842	99	448	5,30	cyclictest	0	-21	swapper/6	23:48:06	12
4176876	99	447	0,30	cyclictest	0	-21	swapper/14	00:17:28	6
4176868	99	447	0,29	cyclictest	0	-21	swapper/12	21:00:51	4
4176868	99	445	25,418	cyclictest	0	-21	swapper/12	00:05:47	4
4176842	99	445	445,0	cyclictest	0	-21	swapper/6	19:41:06	12
4176826	99	445	444,1	cyclictest	0	-21	swapper/2	21:56:06	8
4176868	99	444	23,420	cyclictest	0	-21	swapper/12	21:42:49	4
4176868	99	444	23,420	cyclictest	0	-21	swapper/12	20:23:52	4
4176868	99	444	23,419	cyclictest	0	-21	swapper/12	20:16:51	4
4176834	99	444	443,1	cyclictest	0	-21	swapper/4	22:39:06	10
4176876	99	443	22,419	cyclictest	0	-21	swapper/14	22:30:27	6
4176834	99	443	442,1	cyclictest	0	-21	swapper/4	21:35:06	10
4176834	99	443	2,29	cyclictest	0	-21	swapper/4	20:26:06	10
4176868	99	442	22,418	cyclictest	0	-21	swapper/12	22:29:29	4
4176856	99	442	441,1	cyclictest	697	50	irq/159-i915	22:24:06	2
4176856	99	442	20,422	cyclictest	0	-21	swapper/10	19:09:06	2
4176868	99	440	20,419	cyclictest	0	-21	swapper/12	23:17:01	4
4176868	99	440	19,418	cyclictest	0	-21	swapper/12	20:33:27	4
4176845	99	440	21,29	cyclictest	0	-21	swapper/7	20:57:02	13
4176876	99	439	20,417	cyclictest	0	-21	swapper/14	22:47:27	6
4176868	99	439	19,418	cyclictest	0	-21	swapper/12	00:21:50	4
4176868	99	439	18,418	cyclictest	0	-21	swapper/12	20:05:29	4
4176868	99	438	17,420	cyclictest	0	-21	swapper/12	23:40:27	4
4176831	99	438	436,1	cyclictest	249271	-21	kworker/3:0+i915-unordered	00:36:28	9
4176876	99	437	18,418	cyclictest	0	-21	swapper/14	22:05:29	6
4176868	99	437	17,418	cyclictest	0	-21	swapper/12	00:16:27	4
4176842	99	437	24,412	cyclictest	0	-21	swapper/6	19:35:06	12
4176842	99	437	24,412	cyclictest	0	-21	swapper/6	19:35:06	12
4176868	99	436	19,416	cyclictest	0	-21	swapper/12	22:57:01	4
4176868	99	436	15,419	cyclictest	0	-21	swapper/12	21:51:27	4
4176856	99	436	436,0	cyclictest	697	50	irq/159-i915	19:29:06	2
4176856	99	436	436,0	cyclictest	697	50	irq/159-i915	19:29:06	2
4176842	99	436	23,413	cyclictest	0	-21	swapper/6	21:48:06	12
4176876	99	434	13,420	cyclictest	0	-21	swapper/14	20:32:27	6
4176876	99	434	12,421	cyclictest	0	-21	swapper/14	21:02:50	6
4176863	99	434	434,0	cyclictest	0	-21	swapper/11	00:36:28	3
4176845	99	434	14,29	cyclictest	0	-21	swapper/7	22:06:06	13
4176876	99	433	13,419	cyclictest	0	-21	swapper/14	19:28:50	6
4176876	99	433	13,419	cyclictest	0	-21	swapper/14	19:28:50	6
4176868	99	433	11,418	cyclictest	0	-21	swapper/12	20:47:29	4
4176856	99	433	432,1	cyclictest	697	50	irq/159-i915	21:56:06	2
4176826	99	433	432,1	cyclictest	0	-21	swapper/2	22:39:06	8
4176868	99	432	13,418	cyclictest	0	-21	swapper/12	21:52:28	4
4176868	99	432	13,416	cyclictest	0	-21	swapper/12	20:37:29	4
4176842	99	432	0,431	cyclictest	0	-21	swapper/6	20:51:06	12
4176831	99	432	430,1	cyclictest	237134	-21	kworker/3:1+i915-unordered	00:24:06	9
4176854	99	431	429,2	cyclictest	0	-21	swapper/9	00:00:06	15
4176845	99	431	17,414	cyclictest	0	-21	swapper/7	21:29:06	13
4176826	99	431	430,1	cyclictest	0	-21	swapper/2	21:35:06	8
4176876	99	430	12,417	cyclictest	0	-21	swapper/14	22:01:29	6
4176868	99	430	10,418	cyclictest	0	-21	swapper/12	21:36:48	4
4176837	99	430	429,1	cyclictest	0	-21	swapper/5	21:56:06	11
4176823	99	430	428,1	cyclictest	697	50	irq/159-i915	00:00:06	1
4176876	99	429	13,415	cyclictest	0	-21	swapper/14	20:45:50	6
4176863	99	429	428,1	cyclictest	0	-21	swapper/11	00:24:06	3
4176876	99	428	6,419	cyclictest	0	-21	swapper/14	23:36:49	6
4176842	99	428	0,29	cyclictest	0	-21	swapper/6	19:43:06	12
4176876	99	427	6,418	cyclictest	0	-21	swapper/14	21:29:49	6
4176868	99	427	9,417	cyclictest	0	-21	swapper/12	23:27:02	4
4176868	99	427	4,30	cyclictest	0	-21	swapper/12	22:33:26	4
4176845	99	427	0,426	cyclictest	0	-21	swapper/7	22:16:06	13
4176845	99	427	0,426	cyclictest	0	-21	swapper/7	22:16:06	13
4176842	99	427	6,29	cyclictest	0	-21	swapper/6	22:54:06	12
4176826	99	427	426,1	cyclictest	0	-21	swapper/2	22:59:06	8
4176834	99	426	13,412	cyclictest	0	-21	swapper/4	22:25:06	10
4176876	99	425	3,420	cyclictest	0	-21	swapper/14	22:22:50	6
4176879	99	424	0,0	cyclictest	0	-21	swapper/15	22:52:27	7
4176876	99	424	5,417	cyclictest	0	-21	swapper/14	23:04:29	6
4176845	99	424	6,30	cyclictest	0	-21	swapper/7	00:03:06	13
4176834	99	424	10,413	cyclictest	0	-21	swapper/4	20:13:06	10
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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