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 Wed Mar 11, 2026 00:43:41)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
573494	99	706	309,396	cyclictest	0	-21	swapper/6	21:31:24	12
573480	99	525	25,499	cyclictest	0	-21	swapper/2	00:02:00	8
573525	99	515	17,498	cyclictest	0	-21	swapper/13	00:25:00	5
573491	99	503	501,2	cyclictest	617981	-21	kworker/5:0+i915-unordered	20:03:00	11
573480	99	491	22,468	cyclictest	0	-21	swapper/2	19:35:58	8
573475	99	482	481,1	cyclictest	0	-21	swapper/1	20:20:00	1
573528	99	474	473,1	cyclictest	511421	-21	kworker/14:2+i915-unordered	19:18:00	6
573513	99	467	466,1	cyclictest	793409	-21	kworker/10:2+i915-unordered	23:26:17	2
573525	99	454	27,29	cyclictest	0	-21	swapper/13	22:40:45	5
573517	99	454	13,439	cyclictest	0	-21	swapper/11	23:25:00	3
573517	99	451	12,438	cyclictest	0	-21	swapper/11	22:35:00	3
573517	99	451	11,439	cyclictest	0	-21	swapper/11	19:35:58	3
573517	99	451	0,450	cyclictest	0	-21	swapper/11	22:30:00	3
573471	99	451	21,29	cyclictest	854335	-21	threads	00:24:23	0
573525	99	450	24,29	cyclictest	0	-21	swapper/13	19:14:46	5
573517	99	450	449,1	cyclictest	0	-21	swapper/11	00:25:00	3
573517	99	450	0,449	cyclictest	0	-21	swapper/11	22:51:21	3
573525	99	449	23,29	cyclictest	0	-21	swapper/13	23:47:23	5
573522	99	449	0,448	cyclictest	0	-21	swapper/12	22:51:21	4
573499	99	449	0,58	cyclictest	0	-21	swapper/7	19:51:00	13
573513	99	448	447,1	cyclictest	819642	-21	kworker/10:4+i915-unordered	00:02:00	2
573525	99	447	23,30	cyclictest	0	-21	swapper/13	23:50:00	5
573525	99	447	23,30	cyclictest	0	-21	swapper/13	20:03:00	5
573513	99	445	19,30	cyclictest	0	-21	swapper/10	20:48:00	2
573484	99	445	0,0	cyclictest	0	-21	swapper/3	23:00:23	9
573505	99	444	26,30	cyclictest	0	-21	swapper/9	22:08:00	15
573484	99	444	22,30	cyclictest	0	-21	swapper/3	19:55:00	9
573505	99	442	440,1	cyclictest	635706	-21	kworker/9:2+i915-unordered	20:20:00	15
573499	99	442	16,29	cyclictest	0	-21	swapper/7	22:32:00	13
573480	99	442	15,30	cyclictest	0	-21	swapper/2	00:35:59	8
573525	99	441	0,3	cyclictest	0	-21	swapper/13	23:40:11	5
573471	99	441	411,30	cyclictest	0	-21	swapper/0	23:25:00	0
573525	99	440	21,30	cyclictest	0	-21	swapper/13	00:21:23	5
573525	99	440	17,30	cyclictest	0	-21	swapper/13	22:15:00	5
573525	99	440	17,30	cyclictest	0	-21	swapper/13	22:15:00	5
573517	99	440	436,3	cyclictest	1801	-21	snmpd	00:02:12	3
573494	99	440	13,30	cyclictest	0	-21	swapper/6	19:38:00	12
573486	99	440	440,0	cyclictest	0	-21	swapper/4	00:38:24	10
573484	99	440	439,1	cyclictest	697	50	irq/159-i915	23:25:00	9
573528	99	439	438,1	cyclictest	744905	-21	kworker/14:2+i915-unordered	22:30:00	6
573525	99	439	15,30	cyclictest	0	-21	swapper/13	19:57:16	5
573486	99	439	434,3	cyclictest	749355	-21	kworker/u64:2+events_unbound	22:51:21	10
573491	99	438	14,30	cyclictest	0	-21	swapper/5	21:16:00	11
573484	99	437	437,0	cyclictest	697	50	irq/159-i915	19:35:58	9
573484	99	437	436,1	cyclictest	697	50	irq/159-i915	22:30:00	9
573484	99	436	436,0	cyclictest	697	50	irq/159-i915	22:35:00	9
573484	99	435	435,0	cyclictest	697	50	irq/159-i915	00:25:00	9
573513	99	434	17,30	cyclictest	0	-21	swapper/10	21:22:45	2
573486	99	434	433,1	cyclictest	0	-21	swapper/4	00:23:22	10
573484	99	434	434,0	cyclictest	0	-21	swapper/3	00:36:01	9
573517	99	433	13,419	cyclictest	0	-21	swapper/11	23:58:22	3
573491	99	433	9,29	cyclictest	0	-21	swapper/5	21:25:00	11
573499	99	432	0,431	cyclictest	0	-21	swapper/7	22:52:23	13
573499	99	432	0,431	cyclictest	0	-21	swapper/7	19:11:22	13
573499	99	432	0,431	cyclictest	0	-21	swapper/7	00:27:55	13
573499	99	432	0,1	cyclictest	0	-21	swapper/7	20:52:45	13
573480	99	432	9,422	cyclictest	0	-21	swapper/2	23:26:17	8
573505	99	431	8,29	cyclictest	0	-21	swapper/9	22:37:00	15
573499	99	431	0,430	cyclictest	0	-21	swapper/7	20:18:45	13
573480	99	431	5,30	cyclictest	0	-21	swapper/2	20:55:00	8
573499	99	430	0,0	cyclictest	0	-21	swapper/7	23:05:23	13
573499	99	430	0,0	cyclictest	0	-21	swapper/7	22:26:45	13
573491	99	430	429,1	cyclictest	793459	-21	kworker/5:1+i915-unordered	00:25:00	11
573480	99	430	1,29	cyclictest	0	-21	swapper/2	20:53:00	8
573525	99	429	0,30	cyclictest	0	-21	swapper/13	23:34:45	5
573480	99	429	6,30	cyclictest	0	-21	swapper/2	19:58:00	8
573505	99	428	5,30	cyclictest	0	-21	swapper/9	19:28:55	15
573505	99	428	5,30	cyclictest	0	-21	swapper/9	19:28:55	15
573499	99	426	0,425	cyclictest	0	-21	swapper/7	19:36:24	13
573491	99	426	423,2	cyclictest	739640	-21	kworker/u64:4+events_unbound	22:17:24	11
573491	99	426	423,2	cyclictest	739640	-21	kworker/u64:4+events_unbound	22:17:24	11
573486	99	426	0,2	cyclictest	0	-21	swapper/4	21:12:22	10
573494	99	424	423,1	cyclictest	0	-21	swapper/6	19:18:00	12
573480	99	424	24,400	cyclictest	0	-21	swapper/2	20:59:24	8
573525	99	422	25,396	cyclictest	0	-21	swapper/13	23:29:23	5
573525	99	422	24,397	cyclictest	0	-21	swapper/13	22:26:45	5
573525	99	422	24,396	cyclictest	0	-21	swapper/13	19:46:44	5
573525	99	422	24,395	cyclictest	0	-21	swapper/13	19:29:45	5
573525	99	422	24,395	cyclictest	0	-21	swapper/13	19:29:45	5
573525	99	422	24,395	cyclictest	0	-21	swapper/13	00:07:57	5
573525	99	422	23,396	cyclictest	0	-21	swapper/13	22:55:44	5
573525	99	422	22,396	cyclictest	0	-21	swapper/13	20:50:46	5
573484	99	422	422,0	cyclictest	0	-21	swapper/3	00:02:12	9
573484	99	422	420,1	cyclictest	626836	-21	kworker/3:1+i915-unordered	20:08:22	9
573480	99	422	24,397	cyclictest	0	-21	swapper/2	00:04:23	8
573525	99	421	25,395	cyclictest	0	-21	swapper/13	23:04:46	5
573525	99	421	24,397	cyclictest	0	-21	swapper/13	19:19:45	5
573525	99	421	24,397	cyclictest	0	-21	swapper/13	19:19:45	5
573525	99	421	24,396	cyclictest	0	-21	swapper/13	21:34:43	5
573525	99	421	24,395	cyclictest	0	-21	swapper/13	20:35:23	5
573525	99	421	23,396	cyclictest	0	-21	swapper/13	19:40:44	5
573525	99	421	22,397	cyclictest	0	-21	swapper/13	23:16:22	5
573525	99	421	22,396	cyclictest	0	-21	swapper/13	23:10:43	5
573525	99	421	22,396	cyclictest	0	-21	swapper/13	20:11:21	5
573484	99	421	418,2	cyclictest	811383	-21	kworker/3:1+events	23:58:22	9
573480	99	421	22,398	cyclictest	0	-21	swapper/2	19:29:22	8
573480	99	421	22,398	cyclictest	0	-21	swapper/2	19:29:22	8
573533	99	420	20,397	cyclictest	0	-21	swapper/15	00:25:53	7
573525	99	420	417,3	cyclictest	586968	-21	kworker/u64:0+events_unbound	21:25:18	5
573525	99	420	24,394	cyclictest	0	-21	swapper/13	21:06:22	5
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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