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 Sun Jul 26, 2026 00:43:48)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
2808603	99	561	25,535	cyclictest	0	-21	swapper/11	22:43:58	3
2808603	99	550	0,546	cyclictest	0	-21	swapper/11	21:48:58	3
2808568	99	548	39,508	cyclictest	0	-21	swapper/3	20:07:58	9
2808561	99	547	7,536	cyclictest	0	-21	swapper/1	20:54:58	1
2808603	99	540	19,520	cyclictest	0	-21	swapper/11	21:01:58	3
2808561	99	526	4,521	cyclictest	0	-21	swapper/1	19:58:58	1
2808580	99	521	0,520	cyclictest	0	-21	swapper/6	19:31:58	12
2808580	99	521	0,520	cyclictest	0	-21	swapper/6	19:31:58	12
2808580	99	521	0,519	cyclictest	0	-21	swapper/6	20:33:58	12
2808590	99	513	512,1	cyclictest	2787893	-21	kworker/9:3+i915-unordered	19:16:58	15
2808580	99	506	505,1	cyclictest	3050783	-21	kworker/6:1+i915-unordered	00:04:58	12
2808568	99	506	505,1	cyclictest	2982064	-21	kworker/3:0+i915-unordered	22:43:58	9
2808590	99	505	503,1	cyclictest	2882478	-21	kworker/9:2+i915-unordered	21:02:58	15
2808590	99	504	503,1	cyclictest	2978304	-21	kworker/9:1+i915-unordered	22:58:58	15
2808580	99	499	498,1	cyclictest	3002230	-21	kworker/6:1+i915-unordered	23:24:58	12
2808568	99	493	492,1	cyclictest	2917835	-21	kworker/3:0+i915-unordered	21:48:58	9
2808580	99	492	4,0	cyclictest	0	-21	swapper/6	19:42:58	12
2808568	99	490	0,489	cyclictest	0	-21	swapper/3	22:21:58	9
2808576	99	488	40,30	cyclictest	0	-21	swapper/5	19:22:42	11
2808576	99	488	40,30	cyclictest	0	-21	swapper/5	19:22:42	11
2808614	99	487	485,2	cyclictest	2881571	-21	kworker/14:0+i915-unordered	20:33:58	6
2808614	99	486	486,0	cyclictest	2821440	-21	kworker/14:0+i915-unordered	19:31:58	6
2808614	99	486	486,0	cyclictest	2821440	-21	kworker/14:0+i915-unordered	19:31:58	6
2808590	99	486	485,1	cyclictest	2893848	-21	kworker/9:1+i915-unordered	20:54:58	15
2808590	99	485	484,1	cyclictest	2845324	-21	kworker/9:0+i915-unordered	19:58:58	15
2808568	99	485	485,0	cyclictest	2902595	-21	kworker/3:1+i915-unordered	21:01:58	9
2808566	99	482	18,463	cyclictest	0	-21	swapper/2	00:04:58	8
2808614	99	480	477,1	cyclictest	2837497	-21	kworker/14:2+i915-unordered	19:42:58	6
2808610	99	476	445,31	cyclictest	0	-21	swapper/13	23:59:58	5
2808614	99	475	5,59	cyclictest	0	-21	swapper/14	20:11:58	6
2808614	99	474	24,30	cyclictest	0	-21	swapper/14	00:02:58	6
2808576	99	474	23,30	cyclictest	0	-21	swapper/5	22:01:21	11
2808614	99	473	23,449	cyclictest	0	-21	swapper/14	21:27:58	6
2808608	99	472	23,30	cyclictest	0	-21	swapper/12	19:36:20	4
2808576	99	471	22,30	cyclictest	0	-21	swapper/5	21:24:19	11
2808576	99	471	22,30	cyclictest	0	-21	swapper/5	20:31:19	11
2808576	99	471	21,448	cyclictest	0	-21	swapper/5	19:09:41	11
2808608	99	470	22,29	cyclictest	0	-21	swapper/12	19:13:41	4
2808608	99	469	22,29	cyclictest	0	-21	swapper/12	21:20:40	4
2808608	99	468	23,28	cyclictest	0	-21	swapper/12	21:33:21	4
2808608	99	468	19,30	cyclictest	0	-21	swapper/12	19:29:42	4
2808608	99	468	19,30	cyclictest	0	-21	swapper/12	19:29:42	4
2808576	99	468	19,29	cyclictest	0	-21	swapper/5	21:20:19	11
2808587	99	467	26,28	cyclictest	0	-21	swapper/8	20:18:58	14
2808576	99	467	20,30	cyclictest	0	-21	swapper/5	23:28:19	11
2808576	99	467	20,30	cyclictest	0	-21	swapper/5	19:28:20	11
2808576	99	467	20,30	cyclictest	0	-21	swapper/5	19:28:20	11
2808576	99	466	18,30	cyclictest	0	-21	swapper/5	20:22:42	11
2808568	99	466	26,29	cyclictest	0	-21	swapper/3	20:59:58	9
2808608	99	464	15,29	cyclictest	0	-21	swapper/12	20:32:43	4
2808608	99	463	14,29	cyclictest	0	-21	swapper/12	22:34:19	4
2808566	99	463	0,460	cyclictest	0	-21	swapper/2	19:58:58	8
2808618	99	462	13,30	cyclictest	0	-21	swapper/15	19:14:42	7
2808608	99	462	14,30	cyclictest	0	-21	swapper/12	23:54:42	4
2808608	99	462	13,29	cyclictest	0	-21	swapper/12	22:07:19	4
2808576	99	462	0,461	cyclictest	0	-21	swapper/5	21:41:52	11
2808608	99	461	15,29	cyclictest	0	-21	swapper/12	21:23:44	4
2808576	99	460	12,29	cyclictest	0	-21	swapper/5	23:10:19	11
2808566	99	460	12,446	cyclictest	0	-21	swapper/2	00:11:43	8
2808566	99	460	11,447	cyclictest	0	-21	swapper/2	23:59:19	8
2808576	99	459	12,30	cyclictest	0	-21	swapper/5	22:17:19	11
2808576	99	459	12,30	cyclictest	0	-21	swapper/5	22:17:19	11
2808576	99	459	12,29	cyclictest	0	-21	swapper/5	21:14:43	11
2808576	99	459	11,29	cyclictest	0	-21	swapper/5	22:25:42	11
2808576	99	459	11,29	cyclictest	0	-21	swapper/5	20:50:41	11
2808608	99	458	6,451	cyclictest	0	-21	swapper/12	20:07:58	4
2808608	99	458	456,2	cyclictest	1818	-21	snmpd	20:24:53	4
2808576	99	458	11,30	cyclictest	0	-21	swapper/5	22:35:42	11
2808566	99	458	12,29	cyclictest	0	-21	swapper/2	20:05:19	8
2808590	99	457	16,29	cyclictest	0	-21	swapper/9	19:14:58	15
2808587	99	457	455,2	cyclictest	1818	-21	snmpd	22:10:32	14
2808576	99	457	10,30	cyclictest	0	-21	swapper/5	20:14:43	11
2808566	99	457	10,29	cyclictest	0	-21	swapper/2	23:19:42	8
2808566	99	457	10,28	cyclictest	0	-21	swapper/2	23:27:20	8
2808610	99	455	453,2	cyclictest	3006433	-21	kworker/13:1+i915-unordered	23:19:58	5
2808566	99	454	454,0	cyclictest	0	-21	swapper/2	20:07:58	8
2808561	99	454	4,29	cyclictest	0	-21	swapper/1	23:03:20	1
2808566	99	450	0,30	cyclictest	0	-21	swapper/2	00:26:19	8
2808614	99	449	9,30	cyclictest	0	-21	swapper/14	23:11:58	6
2808587	99	449	448,1	cyclictest	0	-21	swapper/8	22:43:54	14
2808614	99	448	8,29	cyclictest	0	-21	swapper/14	20:28:58	6
2808608	99	448	0,30	cyclictest	0	-21	swapper/12	00:06:42	4
2808608	99	448	0,29	cyclictest	0	-21	swapper/12	22:43:42	4
2808608	99	448	0,29	cyclictest	0	-21	swapper/12	22:11:21	4
2808608	99	448	0,29	cyclictest	0	-21	swapper/12	22:11:21	4
2808587	99	448	444,3	cyclictest	2791888	-21	kworker/u64:4+events_unbound	19:38:41	14
2808585	99	448	448,0	cyclictest	0	-21	swapper/7	20:26:41	13
2808590	99	447	2,30	cyclictest	0	-21	swapper/9	00:17:57	15
2808585	99	447	5,30	cyclictest	0	-21	swapper/7	23:13:58	13
2808595	99	445	444,1	cyclictest	697	50	irq/159-i915	19:31:58	2
2808595	99	445	444,1	cyclictest	697	50	irq/159-i915	19:31:58	2
2808585	99	445	24,419	cyclictest	0	-21	swapper/7	22:10:53	13
2808614	99	444	9,30	cyclictest	0	-21	swapper/14	22:44:58	6
2808603	99	444	22,421	cyclictest	0	-21	swapper/11	22:14:19	3
2808603	99	444	22,421	cyclictest	0	-21	swapper/11	22:14:19	3
2808595	99	444	444,0	cyclictest	697	50	irq/159-i915	20:06:58	2
2808595	99	444	443,1	cyclictest	697	50	irq/159-i915	00:09:58	2
2808590	99	444	0,29	cyclictest	0	-21	swapper/9	00:32:57	15
2808590	99	444	0,29	cyclictest	0	-21	swapper/9	00:28:57	15
2808561	99	444	23,418	cyclictest	0	-21	swapper/1	00:21:20	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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