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 Wed Mar 18, 2026 12:46:22)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
3443882	2	304	289,9	sleep6	0	-21	swapper/6	07:08:48	6
3443945	2	299	274,18	sleep1	0	-21	swapper/1	07:09:39	1
3443813	2	298	284,9	sleep4	0	-21	swapper/4	07:07:49	4
3443881	2	297	261,12	sleep5	0	-21	swapper/5	07:08:46	5
3443856	2	297	289,5	sleep0	0	-21	swapper/0	07:08:26	0
3443747	2	288	268,13	sleep7	0	-21	swapper/7	07:06:55	7
3443770	2	286	266,13	sleep3	0	-21	swapper/3	07:07:16	3
3443869	2	285	265,13	sleep2	0	-21	swapper/2	07:08:35	2
3444449	99	35	0,30	cyclictest	0	-21	swapper/6	09:52:12	6
3444442	99	34	31,3	cyclictest	449069	-21	snmpd	11:32:02	1
3444449	99	33	30,2	cyclictest	449069	-21	snmpd	12:13:52	6
3444449	99	33	30,2	cyclictest	449069	-21	snmpd	11:17:50	6
3444447	99	33	30,2	cyclictest	449069	-21	snmpd	11:50:15	4
3444447	99	33	30,2	cyclictest	449069	-21	snmpd	08:30:58	4
3444447	99	33	30,2	cyclictest	3607721	-21	cat	12:30:15	4
3444447	99	33	30,2	cyclictest	3534010	-21	cat	10:05:15	4
3444447	99	33	30,2	cyclictest	3534010	-21	cat	10:05:14	4
3444447	99	33	28,3	cyclictest	3450598	-21	df_inode	07:20:12	4
3444447	99	33	0,32	cyclictest	0	-21	swapper/4	11:25:59	4
3444447	99	33	0,30	cyclictest	0	-21	swapper/4	10:11:03	4
3444446	99	33	30,2	cyclictest	449069	-21	snmpd	11:16:11	3
3444446	99	33	29,3	cyclictest	449069	-21	snmpd	10:24:04	3
3444443	99	33	30,2	cyclictest	449069	-21	snmpd	12:24:11	2
3444443	99	33	30,2	cyclictest	449069	-21	snmpd	10:08:30	2
3444443	99	33	30,2	cyclictest	449069	-21	snmpd	10:08:30	2
3444443	99	33	30,2	cyclictest	449069	-21	snmpd	07:38:34	2
3444443	99	33	30,2	cyclictest	3501472	-21	cat	09:00:14	2
3444441	99	33	0,1	cyclictest	0	-21	swapper/0	11:16:17	0
3444450	99	32	30,1	cyclictest	449069	-21	snmpd	07:20:15	7
3444449	99	32	30,2	cyclictest	449069	-21	snmpd	08:48:23	6
3444448	99	32	30,2	cyclictest	449069	-21	snmpd	12:17:37	5
3444448	99	32	30,2	cyclictest	3551805	-21	cat	10:40:14	5
3444447	99	32	29,3	cyclictest	449069	-21	snmpd	09:44:51	4
3444447	99	32	29,2	cyclictest	449069	-21	snmpd	12:01:57	4
3444447	99	32	29,2	cyclictest	449069	-21	snmpd	11:19:18	4
3444447	99	32	29,2	cyclictest	449069	-21	snmpd	10:18:30	4
3444447	99	32	29,2	cyclictest	449069	-21	snmpd	09:31:41	4
3444447	99	32	29,2	cyclictest	449069	-21	snmpd	09:14:20	4
3444447	99	32	27,3	cyclictest	3483712	-21	ipmitool	08:25:20	4
3444447	99	32	0,30	cyclictest	0	-21	swapper/4	11:40:28	4
3444446	99	32	30,1	cyclictest	449069	-21	snmpd	09:45:58	3
3444446	99	32	30,1	cyclictest	449069	-21	snmpd	08:10:07	3
3444446	99	32	30,1	cyclictest	449069	-21	snmpd	08:10:06	3
3444446	99	32	29,2	cyclictest	449069	-21	snmpd	08:37:20	3
3444446	99	32	29,2	cyclictest	449069	-21	snmpd	07:42:49	3
3444446	99	32	0,31	cyclictest	0	-21	swapper/3	12:28:10	3
3444446	99	32	0,31	cyclictest	0	-21	swapper/3	10:52:43	3
3444446	99	32	0,31	cyclictest	0	-21	swapper/3	08:24:40	3
3444446	99	32	0,31	cyclictest	0	-21	swapper/3	07:46:12	3
3444446	99	32	0,30	cyclictest	0	-21	swapper/3	11:11:02	3
3444446	99	32	0,30	cyclictest	0	-21	swapper/3	11:05:38	3
3444443	99	32	30,2	cyclictest	449069	-21	snmpd	09:20:14	2
3444443	99	32	30,2	cyclictest	449069	-21	snmpd	07:42:39	2
3444443	99	32	30,2	cyclictest	3468641	-21	cat	07:55:12	2
3444443	99	32	30,1	cyclictest	449069	-21	snmpd	12:12:10	2
3444443	99	32	0,31	cyclictest	0	-21	swapper/2	09:47:30	2
3444443	99	32	0,30	cyclictest	0	-21	swapper/2	11:56:48	2
3444443	99	32	0,30	cyclictest	0	-21	swapper/2	09:43:10	2
3444442	99	32	30,2	cyclictest	449069	-21	snmpd	08:55:58	1
3444442	99	32	30,2	cyclictest	449069	-21	snmpd	07:52:00	1
3444442	99	32	29,3	cyclictest	449069	-21	snmpd	08:51:50	1
3444442	99	32	29,2	cyclictest	449069	-21	snmpd	12:06:57	1
3444442	99	32	29,2	cyclictest	449069	-21	snmpd	07:23:48	1
3444441	99	32	30,2	cyclictest	449069	-21	snmpd	10:38:46	0
3444441	99	32	30,2	cyclictest	449069	-21	snmpd	08:29:04	0
3444450	99	31	30,1	cyclictest	449069	-21	snmpd	11:05:20	7
3444450	99	31	30,1	cyclictest	449069	-21	snmpd	09:02:38	7
3444450	99	31	30,1	cyclictest	449069	-21	snmpd	08:48:25	7
3444450	99	31	30,1	cyclictest	449069	-21	snmpd	07:40:00	7
3444450	99	31	30,1	cyclictest	3498299	-21	kworker/7:2+events	09:05:02	7
3444450	99	31	29,2	cyclictest	449069	-21	snmpd	10:20:24	7
3444450	99	31	29,2	cyclictest	449069	-21	snmpd	08:55:31	7
3444450	99	31	29,2	cyclictest	449069	-21	snmpd	07:32:31	7
3444450	99	31	29,2	cyclictest	3466119	-21	cat	07:50:14	7
3444450	99	31	29,1	cyclictest	3498299	-21	kworker/7:2+events	12:30:26	7
3444450	99	31	28,3	cyclictest	3544034	-21	cat	10:25:14	7
3444450	99	31	0,30	cyclictest	0	-21	swapper/7	12:26:19	7
3444450	99	31	0,30	cyclictest	0	-21	swapper/7	12:03:27	7
3444450	99	31	0,30	cyclictest	0	-21	swapper/7	07:59:46	7
3444450	99	31	0,30	cyclictest	0	-21	swapper/7	07:10:06	7
3444450	99	31	0,1	cyclictest	0	-21	swapper/7	10:45:07	7
3444450	99	31	0,1	cyclictest	0	-21	swapper/7	09:36:38	7
3444450	99	31	0,1	cyclictest	0	-21	swapper/7	09:34:26	7
3444450	99	31	0,1	cyclictest	0	-21	swapper/7	08:26:20	7
3444449	99	31	30,1	cyclictest	449069	-21	snmpd	10:11:21	6
3444449	99	31	29,2	cyclictest	449069	-21	snmpd	10:22:04	6
3444449	99	31	28,2	cyclictest	449069	-21	snmpd	11:55:39	6
3444449	99	31	28,2	cyclictest	449069	-21	snmpd	10:51:52	6
3444449	99	31	0,30	cyclictest	0	-21	swapper/6	07:49:27	6
3444449	99	31	0,1	cyclictest	0	-21	swapper/6	12:23:19	6
3444448	99	31	29,2	cyclictest	449069	-21	snmpd	12:26:10	5
3444448	99	31	29,2	cyclictest	449069	-21	snmpd	11:36:29	5
3444448	99	31	29,2	cyclictest	449069	-21	snmpd	10:18:12	5
3444448	99	31	29,2	cyclictest	449069	-21	snmpd	09:12:38	5
3444448	99	31	29,2	cyclictest	449069	-21	snmpd	07:54:18	5
3444448	99	31	0,31	cyclictest	0	-21	swapper/5	08:11:07	5
3444448	99	31	0,31	cyclictest	0	-21	swapper/5	08:11:06	5
3444448	99	31	0,30	cyclictest	0	-21	swapper/5	11:41:36	5
3444448	99	31	0,30	cyclictest	0	-21	swapper/5	07:33:12	5
3444448	99	31	0,1	cyclictest	0	-21	swapper/5	12:35:19	5
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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