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Default latency plot of shadow in rack #7, slot #4

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.
Unexpectedly long latencies may be caused by SMIs
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 rack7slot4s.osadl.org (updated Mon Jul 07, 2025 00:45:07)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
12982	99	77	6,59	cyclictest	14782	-21	ssh	22:00:15	0
12982	99	77	6,59	cyclictest	14782	-21	ssh	22:00:14	0
12982	99	76	5,22	cyclictest	12	-21	ksoftirqd/0	23:40:14	0
13006	99	70	40,20	cyclictest	324	66	irq/58-eth0	22:50:13	3
12990	99	51	4,11	cyclictest	13	1	rcu_preempt	22:05:13	1
12998	99	49	0,41	cyclictest	23136	-21	ssh	21:45:13	2
12990	99	47	6,28	cyclictest	31148	-21	ssh	21:50:16	1
12982	99	47	29,8	cyclictest	31197	-21	diskmemload	21:45:13	0
12998	99	46	2,4	cyclictest	13	1	rcu_preempt	23:00:15	2
12998	99	46	12,22	cyclictest	27	-21	ksoftirqd/2	23:20:16	2
12982	99	46	2,35	cyclictest	30429	-21	ssh	22:30:15	0
12990	99	45	2,33	cyclictest	13869	-21	ssh	22:40:14	1
12982	99	44	4,31	cyclictest	20378	-21	ssh	23:25:13	0
12998	99	43	2,30	cyclictest	0	-21	swapper/2	21:20:19	2
12998	99	42	22,8	cyclictest	27	-21	ksoftirqd/2	22:15:14	2
12982	99	42	9,24	cyclictest	12	-21	ksoftirqd/0	20:50:15	0
12982	99	42	2,31	cyclictest	29007	-21	ssh	23:10:14	0
12990	99	41	2,31	cyclictest	28303	-21	ssh	23:30:15	1
12998	99	38	1,29	cyclictest	6441	-21	sh	00:15:23	2
12990	99	38	18,14	cyclictest	21	-21	ksoftirqd/1	19:35:14	1
12998	99	37	2,18	cyclictest	26984	-21	cut	00:30:24	2
12990	99	37	3,28	cyclictest	15153	-21	ssh	21:40:16	1
12982	99	37	25,7	cyclictest	12	-21	ksoftirqd/0	23:55:16	0
12998	99	36	2,28	cyclictest	2239	-21	ssh	00:14:24	2
12982	99	36	8,18	cyclictest	12	-21	ksoftirqd/0	22:10:14	0
13006	99	35	3,20	cyclictest	324	66	irq/58-eth0	22:05:13	3
13006	99	35	2,23	cyclictest	324	66	irq/58-eth0	00:30:15	3
13006	99	35	1,19	cyclictest	0	-21	swapper/3	21:50:16	3
13006	99	34	14,12	cyclictest	324	66	irq/58-eth0	22:45:12	3
12982	99	34	2,20	cyclictest	27615	-21	ssh	00:10:11	0
12998	99	33	1,27	cyclictest	26	1	rcuc/2	23:10:13	2
12998	99	33	1,23	cyclictest	21858	-21	ssh	22:45:13	2
12982	99	33	8,18	cyclictest	12	-21	ksoftirqd/0	21:05:13	0
12982	99	33	3,18	cyclictest	12	-21	ksoftirqd/0	19:20:14	0
12990	99	32	1,21	cyclictest	0	-21	swapper/1	21:55:13	1
12982	99	32	9,13	cyclictest	12523	-21	kworker/u8:1	23:45:12	0
12982	99	32	2,24	cyclictest	12	-21	ksoftirqd/0	23:15:14	0
13006	99	31	2,20	cyclictest	324	66	irq/58-eth0	22:15:15	3
13006	99	31	2,18	cyclictest	324	66	irq/58-eth0	00:10:11	3
12998	99	31	3,20	cyclictest	233	46	irq/40-dwc2_hso	21:00:16	2
12998	99	31	3,19	cyclictest	233	46	irq/40-dwc2_hso	21:50:14	2
12998	99	31	3,17	cyclictest	13865	-21	ssh	22:40:14	2
12982	99	31	2,18	cyclictest	15	1	rcuc/0	22:20:15	0
13006	99	30	12,12	cyclictest	324	66	irq/58-eth0	21:10:18	3
12998	99	30	3,20	cyclictest	0	-21	swapper/2	22:30:15	2
12998	99	30	2,21	cyclictest	6704	-21	ssh	21:55:15	2
12990	99	30	2,19	cyclictest	0	-21	swapper/1	00:15:14	1
13006	99	29	4,16	cyclictest	324	66	irq/58-eth0	00:25:15	3
13006	99	29	2,20	cyclictest	0	-21	swapper/3	22:10:14	3
12998	99	29	2,11	cyclictest	30566	-21	ssh	23:30:22	2
12998	99	29	14,11	cyclictest	23072	-21	sshd	00:27:23	2
12990	99	29	2,21	cyclictest	6499	-21	ssh	22:15:16	1
12990	99	29	2,19	cyclictest	15522	-21	ssh	21:20:20	1
12998	99	28	3,18	cyclictest	233	46	irq/40-dwc2_hso	00:35:14	2
12998	99	28	3,17	cyclictest	233	46	irq/40-dwc2_hso	19:10:14	2
12998	99	28	2,21	cyclictest	31604	-21	ssh	21:10:17	2
12998	99	28	2,21	cyclictest	17974	-21	ssh	00:02:24	2
12998	99	28	2,20	cyclictest	0	-21	swapper/2	20:10:15	2
12998	99	28	2,19	cyclictest	0	-21	swapper/2	19:45:14	2
12998	99	28	2,19	cyclictest	0	-21	swapper/2	19:20:14	2
12982	99	28	3,15	cyclictest	628	-21	Async	09:12:57	0
12982	99	28	1,6	cyclictest	12	-21	ksoftirqd/0	19:50:14	0
13006	99	27	3,18	cyclictest	0	-21	swapper/3	20:40:18	3
12998	99	27	2,20	cyclictest	0	-21	swapper/2	00:21:24	2
12990	99	27	6,10	cyclictest	0	-21	swapper/1	19:55:16	1
12982	99	27	1,5	cyclictest	13	1	rcu_preempt	20:20:14	0
12998	99	26	3,14	cyclictest	233	46	irq/40-dwc2_hso	19:30:15	2
12998	99	26	2,19	cyclictest	0	-21	swapper/2	23:40:16	2
12998	99	26	14,5	cyclictest	0	-21	swapper/2	21:15:33	2
12990	99	26	2,20	cyclictest	22457	-21	ssh	22:25:16	1
12982	99	26	2,6	cyclictest	12	-21	ksoftirqd/0	23:30:15	0
12982	99	26	1,6	cyclictest	12	-21	ksoftirqd/0	19:15:14	0
12982	99	26	1,4	cyclictest	13	1	rcu_preempt	19:25:15	0
12982	99	26	1,4	cyclictest	13	1	rcu_preempt	19:25:14	0
13006	99	25	2,15	cyclictest	324	66	irq/58-eth0	19:35:13	3
12998	99	25	1,11	cyclictest	24119	-21	ssh	21:25:21	2
12998	99	25	10,12	cyclictest	8083	-21	sh	23:55:32	2
12990	99	25	19,3	cyclictest	0	-21	swapper/1	23:45:31	1
12990	99	25	10,4	cyclictest	13	1	rcu_preempt	00:10:18	1
12982	99	25	5,6	cyclictest	12	1	ksoftirqd/0	00:33:24	0
13006	99	24	2,12	cyclictest	0	-21	swapper/3	21:55:13	3
13006	99	24	1,13	cyclictest	324	66	irq/58-eth0	00:15:15	3
12998	99	24	15,4	cyclictest	27	-21	ksoftirqd/2	19:15:16	2
12998	99	24	11,6	cyclictest	11011	-21	ssh	23:38:54	2
12998	99	24	1,16	cyclictest	0	-21	swapper/2	20:55:04	2
12998	99	24	1,13	cyclictest	26131	-21	kthreadcore	22:05:23	2
12998	99	24	11,11	cyclictest	0	-21	swapper/2	19:55:24	2
12998	99	24	11,11	cyclictest	0	-21	swapper/2	19:50:28	2
12990	99	24	4,14	cyclictest	0	-21	swapper/1	00:30:16	1
12990	99	24	3,17	cyclictest	21019	-21	ssh	23:05:18	1
12990	99	24	3,17	cyclictest	21019	-21	ssh	23:05:17	1
12990	99	24	17,3	cyclictest	0	-21	swapper/1	22:55:15	1
12990	99	24	1,18	cyclictest	20602	-21	apt-get	20:25:13	1
12990	99	24	11,3	cyclictest	31197	-21	diskmemload	23:01:33	1
12982	99	24	1,19	cyclictest	22967	-21	ssh	21:45:02	0
12982	99	24	11,5	cyclictest	0	-21	swapper/0	21:10:55	0
12982	99	24	10,10	cyclictest	628	-21	Async	09:12:57	0
12998	99	23	2,16	cyclictest	0	-21	swapper/2	23:29:23	2
12998	99	23	1,5	cyclictest	31197	-21	diskmemload	23:50:18	2
12998	99	23	1,18	cyclictest	27759	-21	kthreadcore	21:05:20	2
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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