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Default latency plot of shadow in rack #e, slot #3

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
Compare latency of primary with shadow system

Characteristics of the 100 highest latencies:

System rackeslot3s.osadl.org (updated Tue Nov 18, 2025 12:45:15)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
3329183	99	128	117,7	cyclictest	37	-21	ksoftirqd/3	07:50:02	3
3329169	99	85	3,4	cyclictest	13	1	rcu_preempt	09:15:02	0
3329169	99	85	3,4	cyclictest	13	1	rcu_preempt	09:15:01	0
3329169	99	78	28,10	cyclictest	306	-21	in:imuxsock	09:50:33	0
3329169	99	76	35,8	cyclictest	272	-21	dbus-daemon	07:40:01	0
3329183	99	64	15,10	cyclictest	37	-21	ksoftirqd/3	09:00:00	3
3329183	99	63	17,10	cyclictest	37	-21	ksoftirqd/3	08:00:01	3
3329183	99	61	15,9	cyclictest	37	-21	ksoftirqd/3	09:30:03	3
3329183	99	61	15,9	cyclictest	37	-21	ksoftirqd/3	09:30:02	3
3329183	99	61	13,10	cyclictest	37	-21	ksoftirqd/3	09:25:00	3
3329174	99	61	6,7	cyclictest	23	-21	ksoftirqd/1	09:05:01	1
3329183	99	60	18,7	cyclictest	37	-21	ksoftirqd/3	10:35:02	3
3329183	99	60	14,10	cyclictest	37	-21	ksoftirqd/3	09:15:01	3
3329183	99	60	14,10	cyclictest	37	-21	ksoftirqd/3	09:15:00	3
3329183	99	58	17,7	cyclictest	37	-21	ksoftirqd/3	10:09:59	3
3329174	99	58	1,16	cyclictest	23	-21	ksoftirqd/1	08:10:02	1
3329183	99	56	7,16	cyclictest	3331508	-21	systemd-run	07:55:00	3
3329183	99	56	16,10	cyclictest	37	-21	ksoftirqd/3	12:30:00	3
3329183	99	56	15,8	cyclictest	37	-21	ksoftirqd/3	11:50:01	3
3329174	99	56	7,9	cyclictest	23	-21	ksoftirqd/1	07:40:03	1
3329183	99	54	2,47	cyclictest	1	-21	systemd	11:10:01	3
3329174	99	54	8,12	cyclictest	23	-21	ksoftirqd/1	12:05:02	1
3329174	99	54	8,12	cyclictest	23	-21	ksoftirqd/1	12:05:01	1
3329174	99	54	6,9	cyclictest	23	-21	ksoftirqd/1	12:25:02	1
3329174	99	54	6,9	cyclictest	23	-21	ksoftirqd/1	12:25:02	1
3329183	99	53	37,13	cyclictest	1	-21	systemd	09:45:01	3
3329183	99	53	37,13	cyclictest	1	-21	systemd	09:45:01	3
3329183	99	53	34,14	cyclictest	1	-21	systemd	07:35:01	3
3329183	99	53	12,8	cyclictest	37	-21	ksoftirqd/3	12:35:02	3
3329178	99	53	12,11	cyclictest	13	1	rcu_preempt	09:00:00	2
3329174	99	53	1,7	cyclictest	0	-21	swapper/1	10:15:02	1
3329183	99	52	8,10	cyclictest	37	-21	ksoftirqd/3	11:30:00	3
3329174	99	52	5,9	cyclictest	23	-21	ksoftirqd/1	11:50:01	1
3329174	99	52	37,11	cyclictest	272	-21	dbus-daemon	11:19:59	1
3329174	99	52	2,10	cyclictest	23	-21	ksoftirqd/1	10:04:59	1
3329174	99	52	17,10	cyclictest	23	-21	ksoftirqd/1	10:35:02	1
3329174	99	52	14,9	cyclictest	23	-21	ksoftirqd/1	12:10:01	1
3329169	99	52	2,43	cyclictest	3340859	-21	munin-plugin-st	10:55:01	0
3329169	99	52	2,43	cyclictest	3340859	-21	munin-plugin-st	10:55:01	0
3329183	99	51	34,12	cyclictest	235	-21	systemd-journal	12:19:59	3
3329174	99	51	9,11	cyclictest	23	-21	ksoftirqd/1	09:40:02	1
3329174	99	51	4,11	cyclictest	23	-21	ksoftirqd/1	09:17:00	1
3329174	99	51	2,12	cyclictest	23	-21	ksoftirqd/1	10:25:02	1
3329174	99	51	2,12	cyclictest	23	-21	ksoftirqd/1	10:25:01	1
3329169	99	51	4,4	cyclictest	13	1	rcu_preempt	10:15:01	0
3329169	99	51	2,4	cyclictest	13	1	rcu_preempt	09:20:00	0
3329183	99	50	34,12	cyclictest	1	-21	systemd	08:30:01	3
3329174	99	50	7,8	cyclictest	23	-21	ksoftirqd/1	11:15:00	1
3329174	99	50	6,9	cyclictest	23	-21	ksoftirqd/1	07:55:01	1
3329174	99	50	5,9	cyclictest	23	-21	ksoftirqd/1	08:00:02	1
3329174	99	50	5,6	cyclictest	23	-21	ksoftirqd/1	11:30:02	1
3329174	99	50	4,10	cyclictest	23	-21	ksoftirqd/1	07:20:00	1
3329174	99	50	4,10	cyclictest	23	-21	ksoftirqd/1	07:20:00	1
3329174	99	50	3,9	cyclictest	23	-21	ksoftirqd/1	12:00:01	1
3329169	99	50	2,3	cyclictest	13	1	rcu_preempt	08:00:03	0
3329169	99	50	23,20	cyclictest	3333823	-21	modprobe	08:40:00	0
3329174	99	49	6,8	cyclictest	23	-21	ksoftirqd/1	09:35:02	1
3329178	99	48	26,14	cyclictest	3329673	-21	modprobe	07:20:00	2
3329178	99	48	26,14	cyclictest	3329673	-21	modprobe	07:19:59	2
3329174	99	48	6,13	cyclictest	23	-21	ksoftirqd/1	08:33:33	1
3329174	99	48	5,9	cyclictest	23	-21	ksoftirqd/1	10:50:01	1
3329174	99	48	5,6	cyclictest	23	-21	ksoftirqd/1	10:40:02	1
3329174	99	48	5,6	cyclictest	23	-21	ksoftirqd/1	10:40:01	1
3329174	99	48	5,6	cyclictest	23	-21	ksoftirqd/1	08:25:01	1
3329174	99	48	3,10	cyclictest	23	-21	ksoftirqd/1	09:09:59	1
3329174	99	48	1,9	cyclictest	3345447	-21	cut	12:20:02	1
3329174	99	48	1,10	cyclictest	3342432	-21	latency_hist	11:25:01	1
3329174	99	48	1,10	cyclictest	3342432	-21	latency_hist	11:25:01	1
3329178	99	47	31,12	cyclictest	235	-21	systemd-journal	07:40:01	2
3329178	99	47	29,14	cyclictest	1	-21	systemd	10:50:01	2
3329178	99	47	28,13	cyclictest	235	-21	systemd-journal	12:10:01	2
3329178	99	47	28,13	cyclictest	235	-21	systemd-journal	09:34:59	2
3329174	99	47	8,7	cyclictest	23	-21	ksoftirqd/1	10:20:02	1
3329174	99	47	7,9	cyclictest	23	-21	ksoftirqd/1	11:05:01	1
3329174	99	47	6,8	cyclictest	23	-21	ksoftirqd/1	07:50:00	1
3329174	99	47	4,12	cyclictest	23	-21	ksoftirqd/1	11:40:02	1
3329174	99	47	4,12	cyclictest	23	-21	ksoftirqd/1	11:40:02	1
3329174	99	47	34,9	cyclictest	235	-21	systemd-journal	11:10:01	1
3329174	99	47	11,9	cyclictest	0	-21	swapper/1	09:55:01	1
3329169	99	47	1,3	cyclictest	13	1	rcu_preempt	08:59:59	0
3329183	99	46	31,11	cyclictest	235	-21	systemd-journal	07:27:33	3
3329178	99	46	30,12	cyclictest	1	-21	systemd	07:55:01	2
3329174	99	46	7,8	cyclictest	23	-21	ksoftirqd/1	08:20:03	1
3329174	99	46	7,6	cyclictest	23	-21	ksoftirqd/1	08:50:03	1
3329174	99	46	6,6	cyclictest	23	-21	ksoftirqd/1	08:15:00	1
3329174	99	46	5,7	cyclictest	23	-21	ksoftirqd/1	09:45:03	1
3329174	99	46	5,7	cyclictest	23	-21	ksoftirqd/1	09:45:02	1
3329174	99	46	4,10	cyclictest	23	-21	ksoftirqd/1	08:55:01	1
3329174	99	46	34,9	cyclictest	23	-21	ksoftirqd/1	08:40:01	1
3329169	99	46	33,9	cyclictest	1	-21	systemd	07:45:01	0
3329169	99	46	31,10	cyclictest	272	-21	dbus-daemon	12:40:00	0
3329169	99	46	30,11	cyclictest	235	-21	systemd-journal	10:45:00	0
3329169	99	46	1,4	cyclictest	13	1	rcu_preempt	11:45:00	0
3329183	99	45	32,9	cyclictest	1	-21	systemd	07:15:00	3
3329183	99	45	32,9	cyclictest	1	-21	systemd	07:15:00	3
3329174	99	45	6,8	cyclictest	23	-21	ksoftirqd/1	10:30:02	1
3329174	99	45	6,10	cyclictest	23	-21	ksoftirqd/1	07:35:02	1
3329174	99	45	4,9	cyclictest	23	-21	ksoftirqd/1	10:45:00	1
3329174	99	45	4,7	cyclictest	23	-21	ksoftirqd/1	08:30:00	1
3329174	99	45	3,7	cyclictest	23	-21	ksoftirqd/1	07:30:02	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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This page was last modified on 2021-09-01 - 00:33