OSADL QA Farm on Real-time of Mainline Linux

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

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.

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 r0s0s.osadl.org (updated Sat Mar 07, 2026 12:46:23)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
3182575	2	296	260,12	sleep7	0	-21	swapper/7	07:07:11	7
3182665	2	294	284,6	sleep6	0	-21	swapper/6	07:08:22	6
3182629	2	290	266,19	sleep4	0	-21	swapper/4	07:07:56	4
3182474	2	290	257,25	sleep1	0	-21	swapper/1	07:05:44	1
3182718	2	288	269,12	sleep3	0	-21	swapper/3	07:09:08	3
3182588	2	288	280,5	sleep2	0	-21	swapper/2	07:07:21	2
3182548	2	287	266,13	sleep0	0	-21	swapper/0	07:06:48	0
3182535	2	287	266,13	sleep5	0	-21	swapper/5	07:06:35	5
3183257	99	35	0,32	cyclictest	0	-21	swapper/3	10:47:32	3
3183255	99	34	31,2	cyclictest	3204328	-21	apt-get	07:50:10	1
3183260	99	33	30,2	cyclictest	449069	-21	snmpd	09:04:20	6
3183259	99	33	31,2	cyclictest	3226790	-21	kworker/u16:2+flush-8:0	08:55:01	5
3183259	99	33	30,2	cyclictest	449069	-21	snmpd	11:30:49	5
3183259	99	33	30,2	cyclictest	449069	-21	snmpd	07:36:01	5
3183259	99	33	30,2	cyclictest	449069	-21	snmpd	07:18:33	5
3183259	99	33	30,2	cyclictest	3202442	-21	cat	07:45:17	5
3183259	99	33	0,30	cyclictest	0	-21	swapper/5	09:49:55	5
3183258	99	33	30,2	cyclictest	449069	-21	snmpd	12:37:25	4
3183258	99	33	30,2	cyclictest	449069	-21	snmpd	10:08:23	4
3183258	99	33	30,2	cyclictest	449069	-21	snmpd	10:01:53	4
3183258	99	33	30,2	cyclictest	449069	-21	snmpd	10:01:52	4
3183258	99	33	30,2	cyclictest	449069	-21	snmpd	07:54:40	4
3183258	99	33	0,31	cyclictest	0	-21	swapper/4	11:41:46	4
3183257	99	33	30,2	cyclictest	449069	-21	snmpd	08:50:03	3
3183257	99	33	30,2	cyclictest	3220514	-21	cat	08:20:16	3
3183256	99	33	30,2	cyclictest	449069	-21	snmpd	11:36:38	2
3183256	99	33	30,2	cyclictest	449069	-21	snmpd	08:59:02	2
3183255	99	33	30,2	cyclictest	449069	-21	snmpd	09:02:03	1
3183255	99	33	30,2	cyclictest	3278586	-21	cat	10:15:15	1
3183255	99	33	0,30	cyclictest	0	-21	swapper/1	11:20:25	1
3183255	99	33	0,30	cyclictest	0	-21	swapper/1	08:01:06	1
3183261	99	32	30,1	cyclictest	449069	-21	snmpd	10:28:05	7
3183261	99	32	30,1	cyclictest	449069	-21	snmpd	09:47:44	7
3183261	99	32	29,2	cyclictest	449069	-21	snmpd	12:27:57	7
3183261	99	32	29,2	cyclictest	449069	-21	snmpd	11:20:37	7
3183261	99	32	29,2	cyclictest	449069	-21	snmpd	08:09:53	7
3183261	99	32	29,2	cyclictest	449069	-21	snmpd	08:09:52	7
3183261	99	32	0,31	cyclictest	0	-21	swapper/7	10:15:14	7
3183261	99	32	0,31	cyclictest	0	-21	swapper/7	09:41:19	7
3183261	99	32	0,30	cyclictest	0	-21	swapper/7	12:24:37	7
3183261	99	32	0,30	cyclictest	0	-21	swapper/7	10:24:21	7
3183261	99	32	0,30	cyclictest	0	-21	swapper/7	09:31:21	7
3183260	99	32	30,2	cyclictest	449069	-21	snmpd	09:07:46	6
3183260	99	32	30,2	cyclictest	449069	-21	snmpd	07:55:54	6
3183260	99	32	29,2	cyclictest	3293650	-21	cat	10:45:23	6
3183260	99	32	0,30	cyclictest	0	-21	swapper/6	12:17:45	6
3183259	99	32	30,2	cyclictest	449069	-21	snmpd	09:58:23	5
3183259	99	32	30,1	cyclictest	449069	-21	snmpd	08:13:59	5
3183259	99	32	29,2	cyclictest	449069	-21	snmpd	09:20:34	5
3183259	99	32	0,31	cyclictest	0	-21	swapper/5	12:25:16	5
3183259	99	32	0,31	cyclictest	0	-21	swapper/5	11:47:32	5
3183258	99	32	30,1	cyclictest	449069	-21	snmpd	08:35:03	4
3183258	99	32	29,2	cyclictest	3263577	-21	cat	09:45:14	4
3183258	99	32	27,5	cyclictest	449069	-21	snmpd	11:39:14	4
3183258	99	32	0,31	cyclictest	0	-21	swapper/4	10:39:45	4
3183257	99	32	29,2	cyclictest	449069	-21	snmpd	11:57:26	3
3183257	99	32	29,2	cyclictest	449069	-21	snmpd	11:43:44	3
3183257	99	32	29,2	cyclictest	449069	-21	snmpd	11:06:34	3
3183257	99	32	29,2	cyclictest	449069	-21	snmpd	09:59:14	3
3183257	99	32	29,2	cyclictest	449069	-21	snmpd	08:30:32	3
3183257	99	32	29,2	cyclictest	3324476	-21	cat	11:45:14	3
3183257	99	32	0,31	cyclictest	0	-21	swapper/3	10:44:21	3
3183257	99	32	0,31	cyclictest	0	-21	swapper/3	08:09:29	3
3183257	99	32	0,31	cyclictest	0	-21	swapper/3	08:09:28	3
3183257	99	32	0,1	cyclictest	0	-21	swapper/3	10:22:51	3
3183257	99	32	0,1	cyclictest	0	-21	swapper/3	09:03:56	3
3183256	99	32	29,3	cyclictest	449069	-21	snmpd	12:00:48	2
3183256	99	32	29,3	cyclictest	449069	-21	snmpd	09:14:30	2
3183256	99	32	29,2	cyclictest	449069	-21	snmpd	10:46:29	2
3183256	99	32	29,2	cyclictest	449069	-21	snmpd	10:00:11	2
3183256	99	32	29,2	cyclictest	449069	-21	snmpd	10:00:11	2
3183256	99	32	28,3	cyclictest	449069	-21	snmpd	09:05:24	2
3183255	99	32	30,1	cyclictest	449069	-21	snmpd	09:34:54	1
3183255	99	32	29,2	cyclictest	449069	-21	snmpd	07:34:58	1
3183255	99	32	0,31	cyclictest	0	-21	swapper/1	09:13:19	1
3183255	99	32	0,30	cyclictest	0	-21	swapper/1	10:40:56	1
3183254	99	32	30,2	cyclictest	3215226	-21	cat	08:10:15	0
3183254	99	32	30,1	cyclictest	449069	-21	snmpd	10:33:33	0
3183254	99	32	30,1	cyclictest	449069	-21	snmpd	09:25:09	0
3183254	99	32	30,1	cyclictest	449069	-21	snmpd	09:12:04	0
3183254	99	32	29,2	cyclictest	3281099	-21	cat	10:20:15	0
3183254	99	32	29,2	cyclictest	3258580	-21	cat	09:35:16	0
3183254	99	32	28,3	cyclictest	449069	-21	snmpd	07:18:21	0
3183254	99	32	0,30	cyclictest	0	-21	swapper/0	12:19:30	0
3183261	99	31	30,1	cyclictest	449069	-21	snmpd	12:32:58	7
3183261	99	31	30,1	cyclictest	449069	-21	snmpd	07:15:42	7
3183261	99	31	29,1	cyclictest	449069	-21	snmpd	07:10:21	7
3183261	99	31	28,2	cyclictest	449069	-21	snmpd	11:30:41	7
3183261	99	31	28,2	cyclictest	449069	-21	snmpd	09:50:35	7
3183261	99	31	28,2	cyclictest	449069	-21	snmpd	09:37:23	7
3183261	99	31	28,2	cyclictest	449069	-21	snmpd	08:40:02	7
3183261	99	31	27,3	cyclictest	3306390	-21	cat	11:10:15	7
3183261	99	31	0,31	cyclictest	0	-21	swapper/7	07:26:51	7
3183261	99	31	0,30	cyclictest	0	-21	swapper/7	10:37:42	7
3183261	99	31	0,30	cyclictest	0	-21	swapper/7	08:30:35	7
3183261	99	31	0,30	cyclictest	0	-21	swapper/7	07:38:51	7
3183261	99	31	0,1	cyclictest	0	-21	swapper/7	07:41:10	7
3183261	99	31	0,1	cyclictest	0	-21	swapper/7	07:23:33	7
3183260	99	31	29,2	cyclictest	449069	-21	snmpd	08:16:38	6
3183260	99	31	29,2	cyclictest	3256073	-21	cat	09:30:17	6
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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