OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #0, slot #6

Rack #0/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #1/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #2/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #3/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #4/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #5/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #6/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #7/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #8/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #9/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #a/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #b/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #c/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #d/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #e/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #f/#0 #1 #2 #3 #4 #5 #6 #7 #8
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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 rack0slot6s.osadl.org (updated Tue Aug 18, 2026 00:46:16)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
857426	99	85	7,34	cyclictest	0	-21	swapper/18	23:04:22	10
857406	99	74	5,30	cyclictest	0	-21	swapper/12	19:49:23	4
856923	2	63	53,6	sleep6	0	-21	swapper/6	19:09:17	16
857378	99	59	0,1	cyclictest	950038	-40	tracker-miner-f	20:53:45	14
857392	99	53	22,30	cyclictest	0	-21	swapper/8	21:29:59	18
857392	99	51	19,30	cyclictest	0	-21	swapper/8	20:55:59	18
857378	99	51	18,7	cyclictest	0	-21	swapper/4	21:29:59	14
856812	2	50	45,3	sleep9	0	-21	swapper/9	19:08:00	19
856735	2	50	45,3	sleep2	0	-21	swapper/2	19:07:13	12
857406	99	49	20,28	cyclictest	0	-21	swapper/12	20:02:56	4
857361	99	49	22,26	cyclictest	0	-21	swapper/0	19:53:31	0
857399	99	47	13,7	cyclictest	0	-21	swapper/10	21:29:59	2
857411	99	46	21,23	cyclictest	0	-21	swapper/14	22:44:59	6
857399	99	46	0,44	cyclictest	1019725	-40	tracker-miner-f	22:12:59	2
857399	99	46	0,44	cyclictest	1019725	-40	tracker-miner-f	22:12:59	2
857411	99	45	18,26	cyclictest	0	-21	swapper/14	19:53:31	6
857378	99	44	16,3	cyclictest	0	-21	swapper/4	20:55:59	14
856874	2	44	39,3	sleep12	0	-21	swapper/12	19:08:43	4
856649	2	43	37,3	sleep16	0	-21	swapper/16	19:06:06	8
1973	99	43	0,36	ntpd	0	-21	swapper/14	19:05:24	6
857361	99	42	3,38	cyclictest	0	-21	swapper/0	22:12:59	0
857361	99	42	3,38	cyclictest	0	-21	swapper/0	22:12:59	0
856719	2	42	37,3	sleep7	0	-21	swapper/7	19:06:58	17
856678	2	42	36,3	sleep18	0	-21	swapper/18	19:06:28	10
856832	2	41	37,2	sleep17	0	-21	swapper/17	19:08:08	9
857399	99	40	12,4	cyclictest	0	-21	swapper/10	20:55:59	2
856922	2	40	35,3	sleep5	0	-21	swapper/5	19:09:16	15
856906	2	40	27,3	sleep11	0	-21	swapper/11	19:09:02	3
856860	2	40	35,3	sleep0	0	-21	swapper/0	19:08:31	0
856783	2	40	35,3	sleep8	0	-21	swapper/8	19:07:39	18
853487	2	40	37,2	sleep15	0	-21	swapper/15	19:05:05	7
857408	99	39	19,0	cyclictest	0	-21	swapper/13	22:46:59	5
857392	99	39	8,30	cyclictest	0	-21	swapper/8	23:41:58	18
857361	99	39	11,2	cyclictest	0	-21	swapper/0	21:29:59	0
857428	99	38	37,1	cyclictest	1870	50	irq/149-eno1	22:24:36	11
857428	99	38	37,1	cyclictest	1870	50	irq/149-eno1	22:24:36	11
857421	99	38	0,0	cyclictest	0	-21	swapper/17	22:58:59	9
857378	99	38	5,32	cyclictest	58	1	irq_work/4	20:02:56	14
857378	99	38	10,27	cyclictest	967297	1	kworker/u80:1+i915	23:44:58	14
856918	2	38	33,3	sleep1	0	-21	swapper/1	19:09:12	1
856865	2	38	33,3	sleep3	0	-21	swapper/3	19:08:34	13
856710	2	38	33,3	sleep19	0	-21	swapper/19	19:06:50	11
1973	99	38	0,31	ntpd	0	-21	swapper/4	19:05:25	14
857421	99	37	33,3	cyclictest	0	-21	swapper/17	23:19:59	9
857408	99	37	11,5	cyclictest	1046067	-40	tracker-miner-f	22:44:59	5
857399	99	37	0,36	cyclictest	0	-21	swapper/10	21:11:59	2
857361	99	37	4,33	cyclictest	0	-21	swapper/0	20:00:17	0
855618	2	37	33,2	sleep13	0	-21	swapper/13	19:05:23	5
857411	99	36	36,0	cyclictest	0	-21	swapper/14	00:19:00	6
857411	99	36	35,1	cyclictest	1146496	-40	tracker-miner-f	00:39:58	6
857408	99	36	35,1	cyclictest	901541	-40	tracker-miner-f	19:57:17	5
857406	99	36	29,6	cyclictest	0	-21	swapper/12	21:18:59	4
857406	99	36	27,9	cyclictest	0	-21	swapper/12	21:14:59	4
857399	99	36	0,35	cyclictest	0	-21	swapper/10	20:09:59	2
857392	99	36	7,28	cyclictest	794437	-21	kworker/u80:3+i915	20:02:56	18
857392	99	36	0,36	cyclictest	0	-21	swapper/8	21:55:59	18
857426	99	35	35,0	cyclictest	0	-21	swapper/18	00:06:58	10
857396	99	35	35,0	cyclictest	0	-21	swapper/9	21:28:59	19
857392	99	35	0,0	cyclictest	0	-21	swapper/8	21:45:59	18
857386	99	35	0,34	cyclictest	1050301	-40	tracker-miner-f	22:48:59	16
857381	99	35	0,34	cyclictest	958731	-40	tracker-miner-f	21:02:59	15
857381	99	35	0,34	cyclictest	1019921	-40	tracker-miner-f	22:14:59	15
857381	99	35	0,34	cyclictest	1019921	-40	tracker-miner-f	22:14:59	15
852641	2	35	33,1	sleep10	0	-21	swapper/10	19:05:00	2
857428	99	34	0,0	cyclictest	0	-21	swapper/19	00:34:58	11
857421	99	34	0,27	cyclictest	0	-21	swapper/17	22:46:59	9
857416	99	34	0,33	cyclictest	0	-21	swapper/15	19:39:59	7
857411	99	34	6,27	cyclictest	0	-21	swapper/14	21:29:59	6
857411	99	34	34,0	cyclictest	0	-21	swapper/14	20:00:17	6
857408	99	34	9,25	cyclictest	0	-21	swapper/13	19:53:32	5
857399	99	34	29,5	cyclictest	0	-21	swapper/10	22:49:59	2
857399	99	34	0,33	cyclictest	1146496	-40	tracker-miner-f	00:39:58	2
857396	99	34	0,33	cyclictest	0	-21	swapper/9	22:21:09	19
857396	99	34	0,33	cyclictest	0	-21	swapper/9	22:21:08	19
857396	99	34	0,33	cyclictest	0	-21	swapper/9	22:18:45	19
857396	99	34	0,33	cyclictest	0	-21	swapper/9	22:18:45	19
857396	99	34	0,33	cyclictest	0	-21	swapper/9	21:37:46	19
857396	99	34	0,33	cyclictest	0	-21	swapper/9	20:39:35	19
857392	99	34	34,0	cyclictest	0	-21	swapper/8	00:25:58	18
857392	99	34	33,1	cyclictest	0	-21	swapper/8	00:14:58	18
857378	99	34	0,33	cyclictest	0	-21	swapper/4	23:29:59	14
857375	99	34	0,33	cyclictest	0	-21	swapper/3	21:24:59	13
857375	99	34	0,33	cyclictest	0	-21	swapper/3	21:16:59	13
857367	99	34	0,33	cyclictest	941432	-40	tracker-miner-f	20:44:59	1
857428	99	33	33,0	cyclictest	1870	50	irq/149-eno1	22:00:37	11
857428	99	33	33,0	cyclictest	0	-21	swapper/19	22:19:59	11
857428	99	33	33,0	cyclictest	0	-21	swapper/19	22:19:59	11
857428	99	33	32,1	cyclictest	1870	50	irq/149-eno1	21:59:21	11
857428	99	33	32,1	cyclictest	1870	50	irq/149-eno1	21:37:06	11
857428	99	33	0,33	cyclictest	0	-21	swapper/19	22:35:00	11
857428	99	33	0,0	cyclictest	0	-21	swapper/19	23:12:59	11
857426	99	33	33,0	cyclictest	0	-21	swapper/18	22:41:59	10
857421	99	33	32,1	cyclictest	1063301	-40	tracker-miner-f	23:01:59	9
857421	99	33	32,1	cyclictest	0	-21	swapper/17	00:17:58	9
857421	99	33	0,33	cyclictest	0	-21	swapper/17	21:37:59	9
857418	99	33	33,0	cyclictest	0	-21	swapper/16	23:37:58	8
857418	99	33	33,0	cyclictest	0	-21	swapper/16	22:03:59	8
857418	99	33	0,0	cyclictest	0	-21	swapper/16	00:27:58	8
857416	99	33	33,0	cyclictest	0	-21	swapper/15	22:43:59	7
857416	99	33	33,0	cyclictest	0	-21	swapper/15	20:16:06	7
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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