OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #5, slot #4

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
Special All - All RT - Optimization - Ethernet - Thumbnails - Next

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.

Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: ondemand
Compare latency of primary with shadow system

Characteristics of the 100 highest latencies:

System rack5slot4s.osadl.org (updated Mon Jul 14, 2025 12:44:38)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
10577	2	251	0,1	sleep3	0	-21	swapper/3	12:25:20	3
14906	99	181	179,1	cyclictest	0	-21	swapper/2	07:15:00	2
14904	99	175	171,2	cyclictest	0	-21	swapper/1	07:10:03	1
19762	2	129	0,1	sleep1	19765	-21	sed	08:40:20	1
14619	2	118	104,10	sleep2	0	-21	swapper/2	07:08:41	2
14511	2	118	104,10	sleep3	0	-21	swapper/3	07:07:16	3
14899	99	108	99,8	cyclictest	0	-21	swapper/0	07:15:00	0
14622	2	107	94,9	sleep0	0	-21	swapper/0	07:08:43	0
14432	2	106	94,9	sleep1	0	-21	swapper/1	07:06:15	1
14904	99	69	66,2	cyclictest	7330	-21	kworker/u16:0+events_unbound	11:35:27	1
14904	99	55	39,11	cyclictest	7330	-21	kworker/u16:0+events_unbound	08:20:37	1
14904	99	48	35,11	cyclictest	7330	-21	kworker/u16:0+events_unbound	09:30:19	1
14906	99	47	42,3	cyclictest	20819	-21	kworker/u16:2+events_unbound	07:20:31	2
14904	99	44	40,3	cyclictest	7330	-21	kworker/u16:0+events_unbound	10:40:21	1
14904	99	43	33,7	cyclictest	7330	-21	kworker/u16:0+events_unbound	09:20:21	1
14904	99	43	14,13	cyclictest	15483	-21	kworker/u16:1+events_unbound	07:47:55	1
14906	99	40	36,3	cyclictest	15483	-21	kworker/u16:1+events_unbound	07:15:03	2
14906	99	39	34,3	cyclictest	15483	-21	kworker/u16:1+events_unbound	09:45:26	2
14904	99	39	35,3	cyclictest	15483	-21	kworker/u16:1+events_unbound	09:10:35	1
14904	99	39	10,10	cyclictest	7330	-21	kworker/u16:0+events_unbound	08:27:43	1
14904	99	39	0,6	cyclictest	0	-21	swapper/1	08:49:22	1
14906	99	38	34,3	cyclictest	15483	-21	kworker/u16:1+events_unbound	08:00:01	2
14904	99	38	33,4	cyclictest	7330	-21	kworker/u16:0+events_unbound	09:55:18	1
14904	99	38	33,4	cyclictest	15483	-21	kworker/u16:1+events_unbound	12:10:20	1
14904	99	37	4,8	cyclictest	0	-21	swapper/1	08:00:06	1
14904	99	37	4,5	cyclictest	0	-21	swapper/1	07:58:43	1
14904	99	37	1,5	cyclictest	0	-21	swapper/1	10:48:31	1
14904	99	37	0,6	cyclictest	0	-21	swapper/1	12:16:35	1
14906	99	36	32,3	cyclictest	7330	-21	kworker/u16:0+events_unbound	11:00:26	2
14904	99	36	4,7	cyclictest	0	-21	swapper/1	09:39:51	1
14904	99	36	4,5	cyclictest	0	-21	swapper/1	11:07:27	1
14904	99	36	4,5	cyclictest	0	-21	swapper/1	10:31:31	1
14904	99	36	4,10	cyclictest	7330	-21	kworker/u16:0+events_unbound	12:33:47	1
14904	99	36	3,5	cyclictest	0	-21	swapper/1	09:44:15	1
14904	99	36	3,5	cyclictest	0	-21	swapper/1	09:04:11	1
14904	99	36	3,5	cyclictest	0	-21	swapper/1	08:50:31	1
14904	99	36	3,5	cyclictest	0	-21	swapper/1	08:17:43	1
14904	99	36	3,5	cyclictest	0	-21	swapper/1	08:11:11	1
14904	99	36	13,7	cyclictest	15483	-21	kworker/u16:1+events_unbound	09:06:07	1
14904	99	36	10,13	cyclictest	15483	-21	kworker/u16:1+events_unbound	07:39:23	1
14906	99	35	31,3	cyclictest	15483	-21	kworker/u16:1+events_unbound	10:20:25	2
14904	99	35	4,3	cyclictest	0	-21	swapper/1	07:24:11	1
14904	99	35	3,5	cyclictest	0	-21	swapper/1	11:57:19	1
14904	99	35	3,5	cyclictest	0	-21	swapper/1	11:52:03	1
14904	99	35	3,5	cyclictest	0	-21	swapper/1	10:55:51	1
14904	99	35	32,2	cyclictest	7330	-21	kworker/u16:0+events_unbound	11:30:28	1
14904	99	35	31,3	cyclictest	15483	-21	kworker/u16:1+events_unbound	07:15:05	1
14904	99	35	2,8	cyclictest	0	-21	swapper/1	12:29:07	1
14904	99	35	2,8	cyclictest	0	-21	swapper/1	11:19:03	1
14904	99	35	2,8	cyclictest	0	-21	swapper/1	10:17:39	1
14904	99	35	2,8	cyclictest	0	-21	swapper/1	08:30:59	1
14904	99	35	2,8	cyclictest	0	-21	swapper/1	08:08:27	1
14904	99	35	2,8	cyclictest	0	-21	swapper/1	07:42:03	1
14904	99	35	2,5	cyclictest	0	-21	swapper/1	12:22:39	1
14904	99	35	2,5	cyclictest	0	-21	swapper/1	11:14:43	1
14904	99	35	2,5	cyclictest	0	-21	swapper/1	11:02:23	1
14904	99	35	2,5	cyclictest	0	-21	swapper/1	09:29:34	1
14904	99	35	2,5	cyclictest	0	-21	swapper/1	08:55:03	1
14904	99	35	2,5	cyclictest	0	-21	swapper/1	07:26:42	1
14904	99	35	2,10	cyclictest	27	1	ktimers/1	07:33:38	1
14904	99	35	1,6	cyclictest	0	-21	swapper/1	11:20:51	1
14904	99	35	1,6	cyclictest	0	-21	swapper/1	11:20:50	1
14904	99	35	1,6	cyclictest	0	-21	swapper/1	10:08:43	1
14904	99	35	1,6	cyclictest	0	-21	swapper/1	09:47:19	1
14899	99	35	3,7	cyclictest	0	-21	swapper/0	09:41:55	0
14899	99	35	1,6	cyclictest	24151	-21	kthreadcore	10:10:22	0
14904	99	34	4,5	cyclictest	0	-21	swapper/1	11:46:15	1
14904	99	34	4,5	cyclictest	0	-21	swapper/1	10:25:55	1
14904	99	34	4,5	cyclictest	0	-21	swapper/1	07:51:51	1
14904	99	34	2,7	cyclictest	0	-21	swapper/1	12:07:03	1
14904	99	34	2,5	cyclictest	0	-21	swapper/1	12:00:31	1
14904	99	34	2,5	cyclictest	0	-21	swapper/1	11:27:55	1
14904	99	34	1,8	cyclictest	0	-21	swapper/1	12:35:50	1
14904	99	34	1,8	cyclictest	0	-21	swapper/1	10:23:39	1
14904	99	34	1,8	cyclictest	0	-21	swapper/1	10:00:55	1
14904	99	34	1,8	cyclictest	0	-21	swapper/1	08:36:19	1
14904	99	34	1,5	cyclictest	0	-21	swapper/1	11:40:11	1
14904	99	34	1,5	cyclictest	0	-21	swapper/1	10:35:51	1
14904	99	34	1,5	cyclictest	0	-21	swapper/1	09:51:43	1
14904	99	34	0,6	cyclictest	0	-21	swapper/1	10:50:10	1
14904	99	34	0,6	cyclictest	0	-21	swapper/1	10:12:38	1
14899	99	34	4,6	cyclictest	13075	-21	munin-run	08:35:00	0
14899	99	34	4,5	cyclictest	0	-21	swapper/0	11:03:42	0
14899	99	34	4,5	cyclictest	0	-21	swapper/0	10:57:43	0
14899	99	34	4,5	cyclictest	0	-21	swapper/0	10:49:53	0
14899	99	34	4,5	cyclictest	0	-21	swapper/0	10:20:56	0
14899	99	34	4,5	cyclictest	0	-21	swapper/0	09:36:09	0
14899	99	34	30,3	cyclictest	7330	-21	kworker/u16:0+events_unbound	11:30:24	0
14899	99	34	1,8	cyclictest	30229	-21	users	09:45:28	0
14906	99	33	29,3	cyclictest	7330	-21	kworker/u16:0+events_unbound	10:50:25	2
14904	99	33	0,5	cyclictest	0	-21	swapper/1	09:16:07	1
14899	99	33	3,6	cyclictest	30369	-21	perl	08:50:17	0
14899	99	33	3,5	cyclictest	0	-21	swapper/0	12:00:20	0
14899	99	33	3,5	cyclictest	0	-21	swapper/0	11:50:43	0
14899	99	33	3,5	cyclictest	0	-21	swapper/0	10:52:41	0
14899	99	33	3,5	cyclictest	0	-21	swapper/0	09:50:34	0
14906	99	32	28,3	cyclictest	7330	-21	kworker/u16:0+events_unbound	10:40:26	2
14906	99	32	28,3	cyclictest	20819	-21	kworker/u16:2+events_unbound	07:45:21	2
14899	99	32	4,5	cyclictest	0	-21	swapper/0	11:45:03	0
14899	99	32	4,5	cyclictest	0	-21	swapper/0	07:25:21	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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