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 21, 2026 12:46:28)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
1599588	2	314	283,22	sleep2	0	-21	swapper/2	07:05:24	2
1599720	2	312	291,15	sleep3	0	-21	swapper/3	07:05:25	3
1600883	2	307	281,19	sleep4	0	-21	swapper/4	07:08:31	4
1600972	2	301	274,20	sleep1	0	-21	swapper/1	07:09:49	1
1600935	2	286	266,13	sleep0	0	-21	swapper/0	07:09:16	0
1600757	2	286	266,13	sleep5	0	-21	swapper/5	07:06:47	5
1600730	2	286	266,13	sleep6	0	-21	swapper/6	07:06:24	6
1600750	2	285	265,13	sleep7	0	-21	swapper/7	07:06:41	7
1601465	99	34	30,3	cyclictest	449069	-21	snmpd	12:18:27	6
1601465	99	34	30,3	cyclictest	449069	-21	snmpd	09:50:01	6
1601463	99	34	30,3	cyclictest	449069	-21	snmpd	09:10:27	4
1601463	99	34	0,33	cyclictest	0	-21	swapper/4	10:53:03	4
1601462	99	34	31,2	cyclictest	1708517	-21	df_inode	10:40:12	3
1601462	99	34	30,3	cyclictest	449069	-21	snmpd	08:32:33	3
1601462	99	34	30,3	cyclictest	449069	-21	snmpd	08:32:33	3
1601466	99	33	27,5	cyclictest	449069	-21	snmpd	09:50:28	7
1601466	99	33	0,32	cyclictest	0	-21	swapper/7	12:08:15	7
1601466	99	33	0,1	cyclictest	0	-21	swapper/7	11:52:18	7
1601466	99	33	0,1	cyclictest	0	-21	swapper/7	10:30:18	7
1601465	99	33	30,2	cyclictest	449069	-21	snmpd	11:06:45	6
1601463	99	33	30,2	cyclictest	449069	-21	snmpd	11:03:10	4
1601463	99	33	30,2	cyclictest	449069	-21	snmpd	10:42:15	4
1601463	99	33	30,2	cyclictest	449069	-21	snmpd	09:04:27	4
1601462	99	33	0,30	cyclictest	0	-21	swapper/3	09:40:19	3
1601462	99	33	0,1	cyclictest	0	-21	swapper/3	12:29:57	3
1601461	99	33	30,2	cyclictest	449069	-21	snmpd	12:01:06	2
1601461	99	33	29,3	cyclictest	449069	-21	snmpd	08:19:56	2
1601461	99	33	29,3	cyclictest	1766550	-21	cat	12:35:13	2
1601460	99	33	0,30	cyclictest	0	-21	swapper/1	11:10:45	1
1601466	99	32	30,2	cyclictest	449069	-21	snmpd	10:49:18	7
1601466	99	32	30,1	cyclictest	449069	-21	snmpd	11:12:10	7
1601466	99	32	30,1	cyclictest	449069	-21	snmpd	10:40:12	7
1601466	99	32	29,2	cyclictest	1675667	-21	cat	09:35:14	7
1601466	99	32	29,2	cyclictest	1645657	-21	cat	08:35:15	7
1601466	99	32	28,3	cyclictest	449069	-21	snmpd	10:58:40	7
1601466	99	32	0,31	cyclictest	0	-21	swapper/7	10:10:50	7
1601466	99	32	0,31	cyclictest	0	-21	swapper/7	09:25:36	7
1601466	99	32	0,30	cyclictest	0	-21	swapper/7	11:33:23	7
1601465	99	32	30,1	cyclictest	449069	-21	snmpd	09:07:18	6
1601465	99	32	30,1	cyclictest	449069	-21	snmpd	08:34:09	6
1601465	99	32	30,1	cyclictest	449069	-21	snmpd	08:34:09	6
1601465	99	32	30,1	cyclictest	449069	-21	snmpd	07:39:55	6
1601465	99	32	29,3	cyclictest	449069	-21	snmpd	10:16:14	6
1601465	99	32	29,3	cyclictest	449069	-21	snmpd	10:16:14	6
1601465	99	32	29,2	cyclictest	449069	-21	snmpd	11:56:00	6
1601464	99	32	30,1	cyclictest	449069	-21	snmpd	09:20:19	5
1601464	99	32	29,2	cyclictest	1643196	-21	cat	08:30:14	5
1601464	99	32	29,2	cyclictest	1643196	-21	cat	08:30:14	5
1601464	99	32	28,3	cyclictest	449069	-21	snmpd	12:06:09	5
1601463	99	32	30,1	cyclictest	449069	-21	snmpd	08:12:29	4
1601463	99	32	30,1	cyclictest	449069	-21	snmpd	07:53:31	4
1601463	99	32	30,1	cyclictest	449069	-21	snmpd	07:18:09	4
1601463	99	32	29,2	cyclictest	449069	-21	snmpd	07:57:19	4
1601463	99	32	29,2	cyclictest	449069	-21	snmpd	07:48:22	4
1601463	99	32	29,2	cyclictest	449069	-21	snmpd	07:12:57	4
1601463	99	32	28,3	cyclictest	449069	-21	snmpd	08:23:39	4
1601463	99	32	0,31	cyclictest	0	-21	swapper/4	09:15:13	4
1601463	99	32	0,31	cyclictest	0	-21	swapper/4	08:40:45	4
1601463	99	32	0,30	cyclictest	0	-21	swapper/4	10:14:05	4
1601462	99	32	30,2	cyclictest	449069	-21	snmpd	10:39:45	3
1601462	99	32	30,1	cyclictest	449069	-21	snmpd	12:12:54	3
1601462	99	32	30,1	cyclictest	449069	-21	snmpd	12:12:54	3
1601462	99	32	29,2	cyclictest	449069	-21	snmpd	12:32:52	3
1601462	99	32	29,2	cyclictest	449069	-21	snmpd	10:12:05	3
1601461	99	32	30,1	cyclictest	854	-21	lldpd	08:01:59	2
1601461	99	32	30,1	cyclictest	449069	-21	snmpd	10:36:00	2
1601461	99	32	30,1	cyclictest	449069	-21	snmpd	09:00:33	2
1601461	99	32	30,1	cyclictest	449069	-21	snmpd	07:23:30	2
1601461	99	32	29,2	cyclictest	449069	-21	snmpd	08:36:51	2
1601461	99	32	28,3	cyclictest	449069	-21	snmpd	11:40:29	2
1601461	99	32	28,3	cyclictest	449069	-21	snmpd	10:47:54	2
1601461	99	32	28,3	cyclictest	449069	-21	snmpd	10:25:36	2
1601460	99	32	30,2	cyclictest	449069	-21	snmpd	12:00:39	1
1601460	99	32	30,2	cyclictest	449069	-21	snmpd	09:47:10	1
1601460	99	32	30,2	cyclictest	449069	-21	snmpd	07:10:04	1
1601460	99	32	30,2	cyclictest	1638181	-21	cat	08:20:14	1
1601459	99	32	30,2	cyclictest	449069	-21	snmpd	11:53:45	0
1601459	99	32	30,2	cyclictest	449069	-21	snmpd	11:48:50	0
1601459	99	32	30,2	cyclictest	449069	-21	snmpd	10:51:03	0
1601459	99	32	30,2	cyclictest	449069	-21	snmpd	10:18:02	0
1601459	99	32	30,2	cyclictest	449069	-21	snmpd	10:18:02	0
1601459	99	32	30,2	cyclictest	449069	-21	snmpd	08:36:03	0
1601459	99	32	30,2	cyclictest	449069	-21	snmpd	08:27:53	0
1601459	99	32	30,2	cyclictest	449069	-21	snmpd	07:15:09	0
1601459	99	32	30,2	cyclictest	1685673	-21	cat	09:55:16	0
1601466	99	31	29,2	cyclictest	449069	-21	snmpd	10:02:20	7
1601466	99	31	29,1	cyclictest	449069	-21	snmpd	08:53:54	7
1601466	99	31	28,2	cyclictest	449069	-21	snmpd	08:40:42	7
1601466	99	31	0,30	cyclictest	0	-21	swapper/7	12:36:31	7
1601466	99	31	0,30	cyclictest	0	-21	swapper/7	12:32:18	7
1601466	99	31	0,30	cyclictest	0	-21	swapper/7	08:55:06	7
1601466	99	31	0,29	cyclictest	0	-21	swapper/7	09:16:34	7
1601466	99	31	0,1	cyclictest	0	-21	swapper/7	12:27:07	7
1601466	99	31	0,1	cyclictest	0	-21	swapper/7	08:34:27	7
1601466	99	31	0,1	cyclictest	0	-21	swapper/7	08:34:27	7
1601466	99	31	0,1	cyclictest	0	-21	swapper/7	07:43:55	7
1601466	99	31	0,1	cyclictest	0	-21	swapper/7	07:37:10	7
1601465	99	31	30,1	cyclictest	449069	-21	snmpd	08:45:54	6
1601465	99	31	29,1	cyclictest	449069	-21	snmpd	11:14:52	6
1601465	99	31	29,1	cyclictest	449069	-21	snmpd	08:18:53	6
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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