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 11, 2026 00:46:26)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
1614135	99	52	8,19	cyclictest	0	-21	swapper/1	22:04:22	1
1613445	2	52	46,3	sleep17	0	-21	swapper/17	19:05:51	9
1613482	2	51	46,3	sleep4	0	-21	swapper/4	19:06:17	14
1613550	2	48	43,3	sleep14	0	-21	swapper/14	19:07:07	6
1613471	2	48	43,3	sleep15	0	-21	swapper/15	19:06:08	7
1613446	2	48	43,3	sleep18	0	-21	swapper/18	19:05:52	10
1613719	2	46	41,3	sleep1	0	-21	swapper/1	19:09:16	1
1613677	2	46	41,3	sleep10	0	-21	swapper/10	19:08:45	2
1614135	99	45	10,34	cyclictest	0	-21	swapper/1	00:04:59	1
1613433	2	43	37,3	sleep9	0	-21	swapper/9	19:05:43	19
1613777	2	42	39,2	sleep19	0	-21	swapper/19	19:09:54	11
1613674	2	42	37,3	sleep8	0	-21	swapper/8	19:08:43	18
1796	98	41	0,34	rtkit-daemon	0	-21	swapper/7	19:07:32	17
1613593	2	41	36,3	sleep6	0	-21	swapper/6	19:07:41	16
1613480	2	41	36,3	sleep2	0	-21	swapper/2	19:06:16	12
1613428	2	40	34,3	sleep5	0	-21	swapper/5	19:05:39	15
1614196	99	39	0,1	cyclictest	1862146	-40	tracker-miner-f	23:54:58	11
1613713	2	39	34,3	sleep16	0	-21	swapper/16	19:09:11	8
1613622	2	39	32,4	sleep11	0	-21	swapper/11	19:08:06	3
1613599	2	39	34,3	sleep12	0	-21	swapper/12	19:07:47	4
1613535	2	38	32,3	sleep0	0	-21	swapper/0	19:06:54	0
1614196	99	37	0,36	cyclictest	1757830	-40	tracker-miner-f	21:51:59	11
1613665	2	37	32,3	sleep3	0	-21	swapper/3	19:08:37	13
1614196	99	36	35,1	cyclictest	1736378	-40	tracker-miner-f	21:28:58	11
1614196	99	36	0,0	cyclictest	0	-21	swapper/19	22:15:58	11
1614177	99	36	0,33	cyclictest	0	-21	swapper/13	21:50:59	5
1614174	99	36	0,33	cyclictest	0	-21	swapper/12	00:16:59	4
1613572	2	36	32,2	sleep13	0	-21	swapper/13	19:07:26	5
1614135	99	35	0,3	cyclictest	1692933	-40	tracker-miner-f	20:37:59	1
1614196	99	34	34,0	cyclictest	0	-21	swapper/19	23:14:59	11
1614196	99	34	34,0	cyclictest	0	-21	swapper/19	22:35:59	11
1614196	99	34	34,0	cyclictest	0	-21	swapper/19	21:49:59	11
1614196	99	34	32,1	cyclictest	1723366	-40	tracker-miner-f	21:13:59	11
1614196	99	34	32,1	cyclictest	1719076	-40	tracker-miner-f	21:08:59	11
1614191	99	34	0,33	cyclictest	0	-21	swapper/18	22:26:58	10
1614189	99	34	0,33	cyclictest	0	-21	swapper/17	19:33:48	9
1614182	99	34	0,33	cyclictest	0	-21	swapper/15	23:53:59	7
1614182	99	34	0,33	cyclictest	0	-21	swapper/15	22:32:58	7
1614182	99	34	0,33	cyclictest	0	-21	swapper/15	21:17:59	7
1614182	99	34	0,33	cyclictest	0	-21	swapper/15	20:48:59	7
1614182	99	34	0,33	cyclictest	0	-21	swapper/15	20:35:58	7
1614182	99	34	0,33	cyclictest	0	-21	swapper/15	20:11:59	7
1614182	99	34	0,33	cyclictest	0	-21	swapper/15	00:03:59	7
1614182	99	34	0,1	cyclictest	1636681	-40	tracker-miner-f	19:33:58	7
1614180	99	34	32,1	cyclictest	0	-21	swapper/14	23:51:59	6
1614177	99	34	0,33	cyclictest	1762097	-40	tracker-miner-f	21:55:59	5
1614170	99	34	33,1	cyclictest	1870	50	irq/149-eno1	20:55:42	3
1614170	99	34	32,1	cyclictest	1870	50	irq/149-eno1	20:53:17	3
1614161	99	34	34,0	cyclictest	0	-21	swapper/9	00:06:58	19
1614154	99	34	32,1	cyclictest	1870	50	irq/149-eno1	20:08:49	17
1614154	99	34	32,1	cyclictest	1870	50	irq/149-eno1	20:08:48	17
1614154	99	34	32,1	cyclictest	1870	50	irq/149-eno1	20:01:32	17
1614154	99	34	32,1	cyclictest	1870	50	irq/149-eno1	20:01:31	17
1614154	99	34	0,33	cyclictest	0	-21	swapper/7	23:37:59	17
1614154	99	34	0,33	cyclictest	0	-21	swapper/7	22:49:58	17
1614154	99	34	0,33	cyclictest	0	-21	swapper/7	21:43:59	17
1614151	99	34	0,33	cyclictest	1805473	-40	tracker-miner-f	22:45:58	16
1614151	99	34	0,33	cyclictest	0	-21	swapper/6	22:07:58	16
1614149	99	34	33,1	cyclictest	0	-21	swapper/5	21:11:58	15
1614149	99	34	0,1	cyclictest	1697183	-40	tracker-miner-f	20:41:59	15
1614142	99	34	0,33	cyclictest	0	-21	swapper/3	19:36:01	13
1614139	99	34	0,33	cyclictest	0	-21	swapper/2	22:58:59	12
1614139	99	34	0,33	cyclictest	0	-21	swapper/2	22:14:59	12
1614135	99	34	0,33	cyclictest	0	-21	swapper/1	23:29:40	1
1614135	99	34	0,33	cyclictest	0	-21	swapper/1	23:29:40	1
1614135	99	34	0,33	cyclictest	0	-21	swapper/1	22:53:15	1
1614135	99	34	0,33	cyclictest	0	-21	swapper/1	22:30:20	1
1614135	99	34	0,33	cyclictest	0	-21	swapper/1	21:50:26	1
1614135	99	34	0,33	cyclictest	0	-21	swapper/1	21:25:00	1
1614135	99	34	0,33	cyclictest	0	-21	swapper/1	21:15:44	1
1614196	99	33	33,0	cyclictest	0	-21	swapper/19	23:59:59	11
1614196	99	33	33,0	cyclictest	0	-21	swapper/19	20:41:59	11
1614196	99	33	0,33	cyclictest	0	-21	swapper/19	23:00:58	11
1614196	99	33	0,1	cyclictest	1649458	-40	tracker-miner-f	19:46:47	11
1614189	99	33	0,33	cyclictest	0	-21	swapper/17	22:27:58	9
1614189	99	33	0,32	cyclictest	0	-21	swapper/17	19:39:05	9
1614189	99	33	0,32	cyclictest	0	-21	swapper/17	19:27:11	9
1614189	99	33	0,32	cyclictest	0	-21	swapper/17	19:13:02	9
1614182	99	33	32,0	cyclictest	0	-21	swapper/15	22:10:58	7
1614182	99	33	32,0	cyclictest	0	-21	swapper/15	21:45:58	7
1614182	99	33	0,32	cyclictest	0	-21	swapper/15	00:20:59	7
1614182	99	33	0,0	cyclictest	0	-21	swapper/15	23:05:59	7
1614180	99	33	0,32	cyclictest	0	-21	swapper/14	19:23:59	6
1614177	99	33	0,33	cyclictest	0	-21	swapper/13	22:15:59	5
1614174	99	33	0,0	cyclictest	0	-21	swapper/12	20:54:59	4
1614170	99	33	32,1	cyclictest	1870	50	irq/149-eno1	23:45:14	3
1614170	99	33	32,1	cyclictest	1870	50	irq/149-eno1	23:43:16	3
1614170	99	33	32,1	cyclictest	1870	50	irq/149-eno1	23:13:30	3
1614170	99	33	32,1	cyclictest	1870	50	irq/149-eno1	22:38:08	3
1614170	99	33	32,1	cyclictest	1870	50	irq/149-eno1	22:30:24	3
1614170	99	33	32,1	cyclictest	1870	50	irq/149-eno1	22:21:33	3
1614170	99	33	32,1	cyclictest	1870	50	irq/149-eno1	22:16:50	3
1614170	99	33	32,1	cyclictest	1870	50	irq/149-eno1	22:14:55	3
1614170	99	33	32,1	cyclictest	1870	50	irq/149-eno1	22:00:11	3
1614170	99	33	32,1	cyclictest	1870	50	irq/149-eno1	21:25:40	3
1614170	99	33	32,1	cyclictest	1870	50	irq/149-eno1	21:02:54	3
1614170	99	33	32,1	cyclictest	1870	50	irq/149-eno1	20:47:04	3
1614170	99	33	32,1	cyclictest	1870	50	irq/149-eno1	20:25:03	3
1614170	99	33	32,1	cyclictest	1870	50	irq/149-eno1	20:19:55	3
1614170	99	33	32,1	cyclictest	1870	50	irq/149-eno1	00:01:32	3
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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