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 Tue Jul 15, 2025 12:46:26)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
1040718	2	323	317,4	sleep6	0	-21	swapper/6	07:06:37	6
1040969	2	297	277,13	sleep5	0	-21	swapper/5	07:09:50	5
1040854	2	294	260,26	sleep7	0	-21	swapper/7	07:08:30	7
1040813	2	291	255,28	sleep0	0	-21	swapper/0	07:07:59	0
1040815	2	288	255,25	sleep2	0	-21	swapper/2	07:08:02	2
1039031	2	285	265,13	sleep1	0	-21	swapper/1	07:05:10	1
1040743	2	284	264,13	sleep4	0	-21	swapper/4	07:06:58	4
1040686	2	284	265,12	sleep3	0	-21	swapper/3	07:06:10	3
1041462	99	35	0,32	cyclictest	0	-21	swapper/7	11:12:33	7
1041462	99	33	29,3	cyclictest	1057020	-21	cat	07:40:14	7
1041461	99	33	30,2	cyclictest	833	-21	snmpd	07:39:16	6
1041460	99	33	30,2	cyclictest	833	-21	snmpd	08:15:59	5
1041460	99	33	30,2	cyclictest	833	-21	snmpd	07:41:28	5
1041460	99	33	29,3	cyclictest	833	-21	snmpd	11:27:34	5
1041459	99	33	30,2	cyclictest	1181237	-21	cat	12:00:14	4
1041459	99	33	0,30	cyclictest	0	-21	swapper/4	11:18:06	4
1041457	99	33	30,2	cyclictest	833	-21	snmpd	08:43:00	2
1041457	99	33	30,2	cyclictest	1073564	-21	cat	08:15:15	2
1041455	99	33	30,2	cyclictest	833	-21	snmpd	11:20:18	0
1041455	99	33	30,2	cyclictest	1164689	-21	cat	11:25:16	0
1041455	99	33	30,2	cyclictest	1152903	-21	cat	11:00:15	0
1041455	99	33	0,30	cyclictest	0	-21	swapper/0	11:31:03	0
1041462	99	32	30,1	cyclictest	833	-21	snmpd	11:26:48	7
1041462	99	32	30,1	cyclictest	833	-21	snmpd	09:20:36	7
1041462	99	32	29,2	cyclictest	833	-21	snmpd	08:49:56	7
1041462	99	32	29,2	cyclictest	1140815	-21	cat	10:35:17	7
1041462	99	32	0,30	cyclictest	0	-21	swapper/7	10:05:40	7
1041462	99	32	0,30	cyclictest	0	-21	swapper/7	09:47:18	7
1041462	99	32	0,30	cyclictest	0	-21	swapper/7	09:39:12	7
1041461	99	32	30,2	cyclictest	833	-21	snmpd	08:10:41	6
1041461	99	32	30,1	cyclictest	833	-21	snmpd	11:40:13	6
1041461	99	32	0,31	cyclictest	0	-21	swapper/6	12:10:42	6
1041461	99	32	0,31	cyclictest	0	-21	swapper/6	12:10:41	6
1041461	99	32	0,31	cyclictest	0	-21	swapper/6	07:25:16	6
1041460	99	32	30,1	cyclictest	833	-21	snmpd	11:24:24	5
1041460	99	32	30,1	cyclictest	833	-21	snmpd	07:25:04	5
1041460	99	32	0,31	cyclictest	0	-21	swapper/5	10:32:30	5
1041459	99	32	30,2	cyclictest	833	-21	snmpd	08:54:39	4
1041459	99	32	30,1	cyclictest	833	-21	snmpd	11:48:13	4
1041459	99	32	29,2	cyclictest	833	-21	snmpd	08:35:41	4
1041459	99	32	29,2	cyclictest	1178854	-21	cat	11:55:17	4
1041459	99	32	0,30	cyclictest	0	-21	swapper/4	07:39:43	4
1041458	99	32	30,2	cyclictest	833	-21	snmpd	10:23:08	3
1041458	99	32	30,2	cyclictest	833	-21	snmpd	10:23:07	3
1041458	99	32	29,2	cyclictest	833	-21	snmpd	07:40:12	3
1041458	99	32	0,31	cyclictest	0	-21	swapper/3	12:36:09	3
1041458	99	32	0,31	cyclictest	0	-21	swapper/3	07:55:29	3
1041457	99	32	30,1	cyclictest	833	-21	snmpd	12:10:06	2
1041457	99	32	30,1	cyclictest	833	-21	snmpd	12:10:05	2
1041457	99	32	30,1	cyclictest	833	-21	snmpd	09:10:12	2
1041457	99	32	0,30	cyclictest	0	-21	swapper/2	07:34:04	2
1041456	99	32	30,2	cyclictest	833	-21	snmpd	08:23:22	1
1041455	99	32	30,1	cyclictest	0	-21	swapper/0	09:20:18	0
1041455	99	32	29,2	cyclictest	1133721	-21	cat	10:20:16	0
1041455	99	32	29,2	cyclictest	1133721	-21	cat	10:20:15	0
1041455	99	32	0,31	cyclictest	0	-21	swapper/0	08:10:20	0
1041455	99	32	0,30	cyclictest	0	-21	swapper/0	12:22:41	0
1041462	99	31	29,2	cyclictest	833	-21	snmpd	11:37:58	7
1041462	99	31	29,2	cyclictest	833	-21	snmpd	08:54:33	7
1041462	99	31	28,2	cyclictest	833	-21	snmpd	10:45:35	7
1041462	99	31	28,2	cyclictest	833	-21	snmpd	09:08:33	7
1041462	99	31	28,2	cyclictest	833	-21	snmpd	07:19:57	7
1041462	99	31	28,2	cyclictest	1136079	-21	cat	10:25:15	7
1041462	99	31	0,30	cyclictest	0	-21	swapper/7	10:17:59	7
1041462	99	31	0,30	cyclictest	0	-21	swapper/7	10:17:58	7
1041462	99	31	0,30	cyclictest	0	-21	swapper/7	08:17:47	7
1041462	99	31	0,30	cyclictest	0	-21	swapper/7	08:06:28	7
1041462	99	31	0,30	cyclictest	0	-21	swapper/7	07:57:49	7
1041462	99	31	0,30	cyclictest	0	-21	swapper/7	07:20:16	7
1041462	99	31	0,29	cyclictest	0	-21	swapper/7	11:47:49	7
1041462	99	31	0,28	cyclictest	0	-21	swapper/7	12:31:08	7
1041462	99	31	0,28	cyclictest	0	-21	swapper/7	09:31:34	7
1041462	99	31	0,1	cyclictest	0	-21	swapper/7	09:00:59	7
1041462	99	31	0,1	cyclictest	0	-21	swapper/7	07:30:45	7
1041461	99	31	30,1	cyclictest	833	-21	snmpd	10:20:01	6
1041461	99	31	30,1	cyclictest	833	-21	snmpd	10:20:01	6
1041461	99	31	29,2	cyclictest	833	-21	snmpd	11:52:02	6
1041461	99	31	29,2	cyclictest	833	-21	snmpd	08:41:26	6
1041461	99	31	29,1	cyclictest	833	-21	snmpd	08:46:45	6
1041461	99	31	28,2	cyclictest	833	-21	snmpd	12:35:03	6
1041461	99	31	28,2	cyclictest	833	-21	snmpd	11:17:13	6
1041461	99	31	28,2	cyclictest	833	-21	snmpd	10:51:05	6
1041461	99	31	28,2	cyclictest	833	-21	snmpd	08:28:04	6
1041461	99	31	28,2	cyclictest	833	-21	snmpd	07:48:19	6
1041461	99	31	0,31	cyclictest	0	-21	swapper/6	09:23:06	6
1041461	99	31	0,31	cyclictest	0	-21	swapper/6	07:16:51	6
1041461	99	31	0,30	cyclictest	0	-21	swapper/6	08:24:41	6
1041461	99	31	0,1	cyclictest	0	-21	swapper/6	11:31:30	6
1041461	99	31	0,1	cyclictest	0	-21	swapper/6	10:25:11	6
1041461	99	31	0,1	cyclictest	0	-21	swapper/6	09:53:02	6
1041461	99	31	0,1	cyclictest	0	-21	swapper/6	09:19:30	6
1041461	99	31	0,1	cyclictest	0	-21	swapper/6	09:01:45	6
1041460	99	31	29,1	cyclictest	833	-21	snmpd	11:06:45	5
1041460	99	31	29,1	cyclictest	833	-21	snmpd	09:25:24	5
1041460	99	31	28,2	cyclictest	833	-21	snmpd	11:16:00	5
1041460	99	31	0,31	cyclictest	0	-21	swapper/5	12:17:41	5
1041460	99	31	0,30	cyclictest	0	-21	swapper/5	12:38:35	5
1041460	99	31	0,30	cyclictest	0	-21	swapper/5	11:02:42	5
1041460	99	31	0,30	cyclictest	0	-21	swapper/5	10:50:17	5
1041460	99	31	0,30	cyclictest	0	-21	swapper/5	10:10:49	5
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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