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 Mon Dec 22, 2025 00:46:25)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
2563752	2	302	274,21	sleep5	0	-21	swapper/5	19:08:14	5
2563851	2	296	288,5	sleep2	0	-21	swapper/2	19:09:40	2
2563719	2	293	261,25	sleep1	0	-21	swapper/1	19:07:47	1
2563756	2	291	255,28	sleep0	0	-21	swapper/0	19:08:18	0
2563875	2	287	268,12	sleep3	0	-21	swapper/3	19:09:58	3
2563754	2	287	266,13	sleep7	0	-21	swapper/7	19:08:17	7
2563731	2	286	266,13	sleep4	0	-21	swapper/4	19:07:58	4
2563762	2	284	265,12	sleep6	0	-21	swapper/6	19:08:24	6
2564595	99	33	30,2	cyclictest	870	-21	snmpd	19:44:55	7
2564593	99	33	30,2	cyclictest	870	-21	snmpd	23:32:46	6
2564593	99	33	30,2	cyclictest	2618402	-21	cat	20:55:16	6
2564593	99	33	0,30	cyclictest	0	-21	swapper/6	21:36:16	6
2564593	99	33	0,30	cyclictest	0	-21	swapper/6	20:33:07	6
2564590	99	33	30,2	cyclictest	870	-21	snmpd	22:58:06	5
2564588	99	33	30,2	cyclictest	870	-21	snmpd	19:16:21	4
2564588	99	33	30,2	cyclictest	870	-21	snmpd	00:18:50	4
2564588	99	33	30,2	cyclictest	2580898	-21	cat	19:40:14	4
2564588	99	33	30,2	cyclictest	2565254	-21	cat	19:10:14	4
2564588	99	33	0,30	cyclictest	0	-21	swapper/4	21:52:19	4
2564588	99	33	0,30	cyclictest	0	-21	swapper/4	21:27:30	4
2564584	99	33	0,32	cyclictest	0	-21	swapper/3	22:47:18	3
2564582	99	33	30,2	cyclictest	870	-21	snmpd	19:53:07	2
2564579	99	33	30,2	cyclictest	870	-21	snmpd	22:57:17	1
2564579	99	33	30,2	cyclictest	870	-21	snmpd	20:15:26	1
2564579	99	33	30,2	cyclictest	2656445	-21	cat	22:10:15	1
2564579	99	33	0,30	cyclictest	0	-21	swapper/1	21:30:37	1
2564595	99	32	30,2	cyclictest	870	-21	snmpd	20:43:57	7
2564595	99	32	28,3	cyclictest	870	-21	snmpd	00:18:27	7
2564595	99	32	0,31	cyclictest	0	-21	swapper/7	21:05:17	7
2564595	99	32	0,31	cyclictest	0	-21	swapper/7	19:36:00	7
2564593	99	32	30,2	cyclictest	870	-21	snmpd	21:08:47	6
2564593	99	32	30,2	cyclictest	870	-21	snmpd	19:14:05	6
2564593	99	32	30,1	cyclictest	870	-21	snmpd	20:04:33	6
2564593	99	32	30,1	cyclictest	870	-21	snmpd	00:13:14	6
2564593	99	32	0,31	cyclictest	0	-21	swapper/6	21:25:31	6
2564590	99	32	30,1	cyclictest	870	-21	snmpd	21:06:00	5
2564590	99	32	0,31	cyclictest	0	-21	swapper/5	23:54:17	5
2564590	99	32	0,31	cyclictest	0	-21	swapper/5	23:54:16	5
2564590	99	32	0,31	cyclictest	0	-21	swapper/5	00:03:04	5
2564588	99	32	30,2	cyclictest	870	-21	snmpd	23:48:38	4
2564588	99	32	29,2	cyclictest	870	-21	snmpd	20:13:01	4
2564588	99	32	29,2	cyclictest	870	-21	snmpd	00:14:11	4
2564588	99	32	29,2	cyclictest	2623399	-21	cat	21:05:17	4
2564588	99	32	0,30	cyclictest	0	-21	swapper/4	23:52:31	4
2564588	99	32	0,30	cyclictest	0	-21	swapper/4	23:52:31	4
2564588	99	32	0,30	cyclictest	0	-21	swapper/4	22:55:16	4
2564588	99	32	0,30	cyclictest	0	-21	swapper/4	22:11:04	4
2564588	99	32	0,30	cyclictest	0	-21	swapper/4	20:16:11	4
2564582	99	32	30,2	cyclictest	870	-21	snmpd	22:28:41	2
2564582	99	32	30,1	cyclictest	870	-21	snmpd	20:25:01	2
2564582	99	32	29,2	cyclictest	870	-21	snmpd	23:23:09	2
2564582	99	32	29,2	cyclictest	870	-21	snmpd	21:03:00	2
2564582	99	32	29,2	cyclictest	2721585	-21	cat	00:20:16	2
2564582	99	32	29,2	cyclictest	2605988	-21	cat	20:30:14	2
2564582	99	32	0,31	cyclictest	0	-21	swapper/2	23:08:48	2
2564582	99	32	0,31	cyclictest	0	-21	swapper/2	22:08:10	2
2564579	99	32	30,1	cyclictest	870	-21	snmpd	22:09:53	1
2564579	99	32	29,2	cyclictest	2585888	-21	cat	19:50:14	1
2564577	99	32	30,1	cyclictest	870	-21	snmpd	21:51:46	0
2564577	99	32	29,2	cyclictest	870	-21	snmpd	00:20:02	0
2564595	99	31	30,1	cyclictest	870	-21	snmpd	23:36:18	7
2564595	99	31	30,1	cyclictest	870	-21	snmpd	23:27:00	7
2564595	99	31	30,1	cyclictest	870	-21	snmpd	22:49:06	7
2564595	99	31	30,1	cyclictest	870	-21	snmpd	22:11:25	7
2564595	99	31	30,1	cyclictest	870	-21	snmpd	00:34:21	7
2564595	99	31	0,31	cyclictest	0	-21	swapper/7	23:49:26	7
2564595	99	31	0,31	cyclictest	0	-21	swapper/7	19:31:58	7
2564595	99	31	0,31	cyclictest	0	-21	swapper/7	00:20:15	7
2564595	99	31	0,31	cyclictest	0	-21	swapper/7	00:12:32	7
2564595	99	31	0,31	cyclictest	0	-21	swapper/7	00:01:13	7
2564595	99	31	0,30	cyclictest	0	-21	swapper/7	21:23:03	7
2564595	99	31	0,1	cyclictest	0	-21	swapper/7	21:57:28	7
2564595	99	31	0,1	cyclictest	0	-21	swapper/7	21:57:27	7
2564595	99	31	0,1	cyclictest	0	-21	swapper/7	21:54:58	7
2564595	99	31	0,1	cyclictest	0	-21	swapper/7	20:51:30	7
2564595	99	31	0,1	cyclictest	0	-21	swapper/7	20:25:23	7
2564595	99	31	0,1	cyclictest	0	-21	swapper/7	20:00:11	7
2564595	99	31	0,1	cyclictest	0	-21	swapper/7	19:45:15	7
2564593	99	31	30,1	cyclictest	870	-21	snmpd	22:14:34	6
2564593	99	31	30,1	cyclictest	870	-21	snmpd	19:37:09	6
2564593	99	31	30,1	cyclictest	870	-21	snmpd	00:28:12	6
2564593	99	31	29,2	cyclictest	870	-21	snmpd	23:06:32	6
2564593	99	31	29,1	cyclictest	0	-21	swapper/6	21:12:39	6
2564593	99	31	28,2	cyclictest	870	-21	snmpd	20:09:17	6
2564593	99	31	28,2	cyclictest	870	-21	snmpd	20:09:16	6
2564593	99	31	28,2	cyclictest	2666609	-21	cat	22:30:14	6
2564593	99	31	28,2	cyclictest	2658920	-21	cat	22:15:18	6
2564593	99	31	0,30	cyclictest	0	-21	swapper/6	23:27:36	6
2564593	99	31	0,30	cyclictest	0	-21	swapper/6	21:44:36	6
2564593	99	31	0,30	cyclictest	0	-21	swapper/6	19:50:16	6
2564593	99	31	0,30	cyclictest	0	-21	swapper/6	19:26:39	6
2564593	99	31	0,1	cyclictest	0	-21	swapper/6	23:00:51	6
2564593	99	31	0,1	cyclictest	0	-21	swapper/6	19:20:41	6
2564590	99	31	30,1	cyclictest	870	-21	snmpd	23:40:30	5
2564590	99	31	30,1	cyclictest	870	-21	snmpd	21:37:34	5
2564590	99	31	30,1	cyclictest	870	-21	snmpd	21:18:20	5
2564590	99	31	0,30	cyclictest	0	-21	swapper/5	23:07:36	5
2564590	99	31	0,30	cyclictest	0	-21	swapper/5	22:00:15	5
2564590	99	31	0,30	cyclictest	0	-21	swapper/5	20:40:53	5
2564590	99	31	0,30	cyclictest	0	-21	swapper/5	20:29:31	5
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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