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 Tue Mar 10, 2026 00:43:42)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
535177	99	540	9,530	cyclictest	0	-21	swapper/1	22:06:02	1
535225	99	539	40,498	cyclictest	0	-21	swapper/12	00:33:01	4
535229	99	530	30,499	cyclictest	0	-21	swapper/13	20:35:02	5
535213	99	527	0,28	cyclictest	0	-21	swapper/10	23:10:35	2
535207	99	523	522,1	cyclictest	685505	-21	kworker/9:4+i915-unordered	22:06:02	15
535200	99	518	2,515	cyclictest	0	-21	swapper/7	20:25:02	13
535225	99	510	11,498	cyclictest	0	-21	swapper/12	00:05:01	4
535200	99	504	5,498	cyclictest	0	-21	swapper/7	21:51:02	13
535220	99	501	20,42	cyclictest	0	-21	swapper/11	21:31:02	3
535180	99	498	493,4	cyclictest	742589	-21	kworker/2:0+i915-unordered	23:10:35	8
535220	99	491	489,1	cyclictest	681139	-21	kworker/11:2+i915-unordered	22:22:02	3
535220	99	491	489,1	cyclictest	681139	-21	kworker/11:2+i915-unordered	22:22:02	3
535220	99	487	486,1	cyclictest	654390	-21	kworker/11:1+i915-unordered	21:23:02	3
535213	99	486	485,1	cyclictest	469951	-21	kworker/10:3+i915-unordered	19:53:18	2
535220	99	479	478,1	cyclictest	676187	-21	kworker/11:0+i915-unordered	21:47:02	3
535229	99	459	458,1	cyclictest	0	-21	swapper/13	00:28:01	5
535229	99	452	452,0	cyclictest	0	-21	swapper/13	22:00:02	5
535188	99	452	25,29	cyclictest	0	-21	swapper/4	20:15:48	10
535220	99	451	11,439	cyclictest	0	-21	swapper/11	20:35:02	3
535220	99	447	447,0	cyclictest	0	-21	swapper/11	00:05:01	3
535200	99	447	22,30	cyclictest	0	-21	swapper/7	00:26:01	13
535204	99	446	0,445	cyclictest	0	-21	swapper/8	23:16:45	14
535200	99	446	0,30	cyclictest	0	-21	swapper/7	23:25:01	13
535220	99	445	3,439	cyclictest	0	-21	swapper/11	21:51:02	3
535231	99	444	24,29	cyclictest	0	-21	swapper/14	21:24:42	6
535225	99	444	18,30	cyclictest	0	-21	swapper/12	21:57:02	4
535185	99	444	443,1	cyclictest	697	50	irq/159-i915	20:42:02	9
535188	99	443	26,416	cyclictest	0	-21	swapper/4	00:15:37	10
535229	99	442	17,30	cyclictest	0	-21	swapper/13	00:23:57	5
535207	99	442	21,420	cyclictest	0	-21	swapper/9	22:47:33	15
535200	99	439	20,28	cyclictest	0	-21	swapper/7	21:58:57	13
535185	99	437	12,422	cyclictest	0	-21	swapper/3	00:37:24	9
535220	99	436	14,29	cyclictest	0	-21	swapper/11	22:58:01	3
535185	99	435	16,418	cyclictest	0	-21	swapper/3	20:34:25	9
535174	99	435	0,434	cyclictest	0	-21	swapper/0	21:25:02	0
535225	99	431	18,411	cyclictest	0	-21	swapper/12	21:08:02	4
535180	99	431	4,426	cyclictest	0	-21	swapper/2	20:22:02	8
535220	99	430	429,1	cyclictest	0	-21	swapper/11	00:33:01	3
535213	99	430	429,1	cyclictest	0	-21	swapper/10	22:51:35	2
535200	99	430	0,429	cyclictest	0	-21	swapper/7	20:00:02	13
535174	99	430	428,1	cyclictest	650502	-21	kworker/0:0+i915-unordered	23:16:45	0
535231	99	428	7,28	cyclictest	0	-21	swapper/14	23:55:01	6
535231	99	428	6,29	cyclictest	0	-21	swapper/14	20:23:02	6
535188	99	428	0,426	cyclictest	0	-21	swapper/4	23:51:55	10
535193	99	427	8,418	cyclictest	0	-21	swapper/5	22:49:23	11
535220	99	426	426,0	cyclictest	0	-21	swapper/11	21:57:02	3
535188	99	426	424,2	cyclictest	0	-21	swapper/4	20:32:13	10
535231	99	425	422,2	cyclictest	735692	-21	kworker/14:2+i915-unordered	22:54:25	6
535200	99	425	7,416	cyclictest	0	-21	swapper/7	00:29:23	13
535188	99	425	23,398	cyclictest	0	-21	swapper/4	21:36:24	10
535229	99	424	0,28	cyclictest	0	-21	swapper/13	21:27:02	5
535188	99	424	25,397	cyclictest	0	-21	swapper/4	00:01:23	10
535180	99	424	422,1	cyclictest	0	-21	swapper/2	19:53:18	8
535174	99	424	5,418	cyclictest	0	-21	swapper/0	00:03:01	0
535220	99	423	421,2	cyclictest	0	-21	swapper/11	22:06:02	3
535188	99	423	25,396	cyclictest	0	-21	swapper/4	22:25:23	10
535188	99	423	25,396	cyclictest	0	-21	swapper/4	22:25:23	10
535188	99	423	24,396	cyclictest	0	-21	swapper/4	23:15:25	10
535231	99	422	0,29	cyclictest	0	-21	swapper/14	19:26:02	6
535231	99	422	0,27	cyclictest	0	-21	swapper/14	19:10:02	6
535197	99	422	419,2	cyclictest	553098	-21	kworker/u64:8+events_unbound	20:00:02	12
535236	99	420	418,2	cyclictest	619102	-21	kworker/15:0+i915-unordered	21:51:02	7
535231	99	420	420,0	cyclictest	0	-21	swapper/14	20:14:25	6
535225	99	420	0,30	cyclictest	0	-21	swapper/12	22:17:02	4
535193	99	420	20,397	cyclictest	0	-21	swapper/5	22:23:46	11
535193	99	420	20,397	cyclictest	0	-21	swapper/5	22:23:46	11
535180	99	420	0,26	cyclictest	0	-21	swapper/2	22:12:02	8
535174	99	420	8,411	cyclictest	0	-21	swapper/0	22:57:02	0
535220	99	419	419,0	cyclictest	0	-21	swapper/11	00:03:01	3
535174	99	419	418,1	cyclictest	650502	-21	kworker/0:0+pm	22:51:35	0
535220	99	418	416,2	cyclictest	0	-21	swapper/11	20:25:02	3
535229	99	417	417,0	cyclictest	0	-21	swapper/13	22:52:47	5
535229	99	417	24,391	cyclictest	0	-21	swapper/13	22:41:01	5
535231	99	416	20,395	cyclictest	0	-21	swapper/14	21:36:02	6
535220	99	416	415,0	cyclictest	0	-21	swapper/11	23:47:01	3
535185	99	416	415,1	cyclictest	697	50	irq/159-i915	00:18:01	9
535213	99	415	412,2	cyclictest	657665	-21	kworker/u64:2+events_unbound	21:33:45	2
535207	99	415	17,397	cyclictest	0	-21	swapper/9	22:35:47	15
535207	99	415	17,397	cyclictest	0	-21	swapper/9	22:31:23	15
535207	99	415	17,397	cyclictest	0	-21	swapper/9	22:31:23	15
535185	99	415	414,1	cyclictest	697	50	irq/159-i915	22:22:02	9
535185	99	415	414,1	cyclictest	697	50	irq/159-i915	22:22:02	9
535185	99	415	17,397	cyclictest	0	-21	swapper/3	22:37:48	9
535185	99	415	15,399	cyclictest	0	-21	swapper/3	23:07:24	9
535185	99	415	14,400	cyclictest	0	-21	swapper/3	20:10:24	9
535225	99	414	21,390	cyclictest	0	-21	swapper/12	00:36:01	4
535220	99	414	412,1	cyclictest	760047	-21	kworker/11:0+i915-unordered	23:20:46	3
535220	99	414	23,0	cyclictest	0	-21	swapper/11	00:35:01	3
535207	99	414	17,396	cyclictest	0	-21	swapper/9	21:15:23	15
535185	99	414	17,396	cyclictest	0	-21	swapper/3	20:08:47	9
535185	99	414	16,397	cyclictest	0	-21	swapper/3	23:41:29	9
535185	99	414	16,397	cyclictest	0	-21	swapper/3	23:34:24	9
535185	99	414	16,397	cyclictest	0	-21	swapper/3	22:51:24	9
535185	99	414	15,399	cyclictest	0	-21	swapper/3	21:13:38	9
535185	99	414	15,398	cyclictest	0	-21	swapper/3	21:22:23	9
535185	99	414	15,398	cyclictest	0	-21	swapper/3	19:51:47	9
535185	99	414	14,399	cyclictest	0	-21	swapper/3	20:47:24	9
535185	99	414	14,399	cyclictest	0	-21	swapper/3	19:30:24	9
535185	99	414	13,400	cyclictest	0	-21	swapper/3	21:44:41	9
535225	99	413	20,392	cyclictest	0	-21	swapper/12	20:32:02	4
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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