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 08, 2025 00:46:28)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
4031239	2	341	304,31	sleep1	0	-21	swapper/1	19:05:28	1
4030240	2	298	262,12	sleep3	0	-21	swapper/3	19:05:06	3
4030242	2	292	273,12	sleep5	0	-21	swapper/5	19:05:07	5
4031921	2	286	267,12	sleep6	0	-21	swapper/6	19:06:21	6
4032069	2	285	265,13	sleep4	0	-21	swapper/4	19:08:20	4
4031998	2	285	265,13	sleep2	0	-21	swapper/2	19:07:21	2
4031911	2	285	266,12	sleep7	0	-21	swapper/7	19:06:14	7
4031865	2	285	265,13	sleep0	0	-21	swapper/0	19:05:35	0
4032665	99	35	0,32	cyclictest	0	-21	swapper/0	22:52:55	0
4032672	99	34	32,2	cyclictest	4062100	-21	gpgv	20:09:59	7
4032671	99	34	30,3	cyclictest	833	-21	snmpd	00:20:30	6
4032671	99	34	30,3	cyclictest	833	-21	snmpd	00:20:30	6
4032672	99	33	30,2	cyclictest	833	-21	snmpd	00:29:24	7
4032672	99	33	30,2	cyclictest	833	-21	snmpd	00:29:24	7
4032671	99	33	30,2	cyclictest	833	-21	snmpd	22:49:27	6
4032671	99	33	30,2	cyclictest	833	-21	snmpd	20:20:02	6
4032671	99	33	30,2	cyclictest	833	-21	snmpd	20:18:55	6
4032670	99	33	30,2	cyclictest	833	-21	snmpd	23:35:08	5
4032670	99	33	30,2	cyclictest	833	-21	snmpd	21:33:57	5
4032670	99	33	0,32	cyclictest	0	-21	swapper/5	21:54:05	5
4032669	99	33	30,2	cyclictest	4187113	-21	cat	00:30:13	4
4032668	99	33	30,2	cyclictest	833	-21	snmpd	23:17:53	3
4032668	99	33	30,2	cyclictest	833	-21	snmpd	22:37:54	3
4032668	99	33	30,2	cyclictest	4185227	-21	ntp_states	00:25:27	3
4032668	99	33	30,2	cyclictest	4185227	-21	ntp_states	00:25:27	3
4032668	99	33	0,30	cyclictest	0	-21	swapper/3	23:20:52	3
4032668	99	33	0,30	cyclictest	0	-21	swapper/3	21:58:46	3
4032668	99	33	0,30	cyclictest	0	-21	swapper/3	20:09:36	3
4032667	99	33	0,32	cyclictest	0	-21	swapper/2	22:49:08	2
4032666	99	33	30,2	cyclictest	833	-21	snmpd	20:30:16	1
4032665	99	33	30,2	cyclictest	833	-21	snmpd	22:14:37	0
4032672	99	32	0,30	cyclictest	0	-21	swapper/7	00:35:12	7
4032671	99	32	29,2	cyclictest	833	-21	snmpd	22:06:37	6
4032671	99	32	29,2	cyclictest	833	-21	snmpd	20:01:25	6
4032670	99	32	30,2	cyclictest	833	-21	snmpd	23:02:22	5
4032670	99	32	30,1	cyclictest	833	-21	snmpd	22:55:48	5
4032670	99	32	30,1	cyclictest	833	-21	snmpd	22:52:10	5
4032670	99	32	29,2	cyclictest	833	-21	snmpd	22:48:53	5
4032670	99	32	29,2	cyclictest	833	-21	snmpd	20:57:17	5
4032670	99	32	29,2	cyclictest	833	-21	snmpd	20:23:13	5
4032670	99	32	0,30	cyclictest	0	-21	swapper/5	21:38:52	5
4032670	99	32	0,30	cyclictest	0	-21	swapper/5	00:26:55	5
4032670	99	32	0,30	cyclictest	0	-21	swapper/5	00:26:54	5
4032670	99	32	0,29	cyclictest	0	-21	swapper/5	22:27:35	5
4032669	99	32	30,2	cyclictest	833	-21	snmpd	23:57:54	4
4032669	99	32	30,1	cyclictest	833	-21	snmpd	00:08:41	4
4032669	99	32	30,1	cyclictest	4090722	-21	kworker/u16:2+events_unbound	21:30:17	4
4032669	99	32	29,2	cyclictest	4165787	-21	cat	23:45:14	4
4032669	99	32	0,31	cyclictest	0	-21	swapper/4	22:44:47	4
4032669	99	32	0,30	cyclictest	0	-21	swapper/4	00:19:27	4
4032668	99	32	30,1	cyclictest	833	-21	snmpd	22:59:25	3
4032668	99	32	30,1	cyclictest	833	-21	snmpd	22:45:50	3
4032668	99	32	30,1	cyclictest	833	-21	snmpd	19:16:24	3
4032668	99	32	29,2	cyclictest	833	-21	snmpd	21:21:21	3
4032668	99	32	29,2	cyclictest	4155909	-21	cat	23:25:16	3
4032668	99	32	0,31	cyclictest	0	-21	swapper/3	19:56:57	3
4032667	99	32	30,2	cyclictest	833	-21	snmpd	23:26:02	2
4032667	99	32	30,2	cyclictest	833	-21	snmpd	20:38:10	2
4032667	99	32	30,2	cyclictest	833	-21	snmpd	20:38:10	2
4032667	99	32	30,2	cyclictest	833	-21	snmpd	19:22:00	2
4032667	99	32	30,2	cyclictest	833	-21	snmpd	00:16:51	2
4032667	99	32	30,2	cyclictest	4134577	-21	cat	22:40:16	2
4032667	99	32	0,31	cyclictest	0	-21	swapper/2	22:30:41	2
4032667	99	32	0,31	cyclictest	0	-21	swapper/2	22:30:41	2
4032667	99	32	0,29	cyclictest	0	-21	swapper/2	19:55:49	2
4032666	99	32	30,2	cyclictest	833	-21	snmpd	23:38:49	1
4032666	99	32	30,2	cyclictest	833	-21	snmpd	22:21:59	1
4032666	99	32	30,2	cyclictest	833	-21	snmpd	22:11:40	1
4032666	99	32	30,2	cyclictest	833	-21	snmpd	21:16:11	1
4032666	99	32	30,2	cyclictest	833	-21	snmpd	20:29:29	1
4032666	99	32	30,2	cyclictest	833	-21	snmpd	00:02:59	1
4032666	99	32	30,2	cyclictest	4134565	-21	cat	22:40:15	1
4032666	99	32	30,1	cyclictest	833	-21	snmpd	21:40:06	1
4032666	99	32	30,1	cyclictest	833	-21	snmpd	20:55:53	1
4032665	99	32	30,2	cyclictest	833	-21	snmpd	00:24:27	0
4032665	99	32	30,2	cyclictest	833	-21	snmpd	00:24:27	0
4032665	99	32	29,2	cyclictest	833	-21	snmpd	19:25:57	0
4032665	99	32	29,2	cyclictest	4043712	-21	cat	19:30:17	0
4032672	99	31	30,1	cyclictest	833	-21	snmpd	23:35:10	7
4032672	99	31	30,1	cyclictest	833	-21	snmpd	22:16:23	7
4032672	99	31	30,1	cyclictest	833	-21	snmpd	21:30:31	7
4032672	99	31	30,1	cyclictest	833	-21	snmpd	20:52:44	7
4032672	99	31	29,2	cyclictest	833	-21	snmpd	23:55:15	7
4032672	99	31	29,2	cyclictest	833	-21	snmpd	21:10:36	7
4032672	99	31	29,2	cyclictest	833	-21	snmpd	21:05:41	7
4032672	99	31	29,1	cyclictest	833	-21	snmpd	23:33:11	7
4032672	99	31	29,1	cyclictest	4035450	-21	cat	19:15:04	7
4032672	99	31	0,30	cyclictest	0	-21	swapper/7	23:53:53	7
4032672	99	31	0,30	cyclictest	0	-21	swapper/7	23:23:47	7
4032672	99	31	0,30	cyclictest	0	-21	swapper/7	19:42:46	7
4032672	99	31	0,1	cyclictest	0	-21	swapper/7	23:12:09	7
4032672	99	31	0,1	cyclictest	0	-21	swapper/7	23:01:09	7
4032672	99	31	0,1	cyclictest	0	-21	swapper/7	22:02:40	7
4032672	99	31	0,1	cyclictest	0	-21	swapper/7	19:55:30	7
4032671	99	31	30,1	cyclictest	833	-21	snmpd	20:48:43	6
4032671	99	31	30,1	cyclictest	833	-21	snmpd	19:55:48	6
4032671	99	31	30,1	cyclictest	833	-21	snmpd	19:19:00	6
4032671	99	31	29,1	cyclictest	833	-21	snmpd	21:45:01	6
4032671	99	31	27,3	cyclictest	833	-21	snmpd	22:28:47	6
4032671	99	31	0,30	cyclictest	0	-21	swapper/6	22:17:25	6
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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