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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
Special All - All RT - Optimization - Ethernet - Thumbnails - Next

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 Sun Dec 21, 2025 12:45:08)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
1090627	99	81	30,46	cyclictest	238	-21	systemd-journal	10:55:01	0
1090627	99	80	2,5	cyclictest	1103555	-21	munin-run	11:20:01	0
1090627	99	77	1,3	cyclictest	1092123	-21	munin-run	07:40:00	0
1090634	99	70	26,9	cyclictest	23	-21	ksoftirqd/1	10:30:02	1
1090634	99	70	26,9	cyclictest	23	-21	ksoftirqd/1	10:30:02	1
1090627	99	66	7,19	cyclictest	1	-21	systemd	07:15:01	0
1090627	99	66	7,19	cyclictest	1	-21	systemd	07:15:01	0
1090627	99	66	19,43	cyclictest	0	-21	swapper/0	08:05:22	0
1090627	99	65	4,19	cyclictest	1090629	-21	grep	07:10:01	0
1090627	99	64	37,15	cyclictest	12	-21	ksoftirqd/0	11:20:02	0
1090627	99	64	3,27	cyclictest	1103003	-21	grep	11:09:59	0
1090627	99	64	2,5	cyclictest	1107399	-21	munin-run	12:35:01	0
1090627	99	63	17,11	cyclictest	1098356	-21	tr	09:40:00	0
1090627	99	63	1,27	cyclictest	0	-21	swapper/0	07:25:02	0
1090627	99	62	58,2	cyclictest	0	-21	swapper/0	10:25:01	0
1090627	99	62	4,17	cyclictest	1095503	-21	munin-run	08:45:00	0
1090627	99	62	21,5	cyclictest	1093929	-21	latency_hist	08:15:01	0
1090627	99	62	21,15	cyclictest	275	-21	dbus-daemon	12:10:00	0
1090627	99	61	2,6	cyclictest	1096793	-21	munin-run	09:10:00	0
1090627	99	61	1,26	cyclictest	0	-21	swapper/0	11:40:01	0
1090627	99	61	1,26	cyclictest	0	-21	swapper/0	11:40:00	0
1090636	99	60	38,17	cyclictest	1	-21	systemd	10:25:01	2
1090634	99	60	4,11	cyclictest	23	-21	ksoftirqd/1	07:30:01	1
1090634	99	60	4,11	cyclictest	23	-21	ksoftirqd/1	07:30:00	1
1090627	99	60	56,2	cyclictest	0	-21	swapper/0	10:50:02	0
1090627	99	60	25,5	cyclictest	1096671	-21	latency_hist	09:05:01	0
1090636	99	59	11,7	cyclictest	13	1	rcu_preempt	12:00:02	2
1090636	99	59	11,7	cyclictest	13	1	rcu_preempt	12:00:01	2
1090634	99	59	8,13	cyclictest	23	-21	ksoftirqd/1	08:15:00	1
1090634	99	59	4,10	cyclictest	23	-21	ksoftirqd/1	10:40:00	1
1090627	99	59	20,8	cyclictest	1102544	-21	sed	11:00:01	0
1090627	99	59	1,26	cyclictest	0	-21	swapper/0	11:55:02	0
1090634	99	58	7,11	cyclictest	23	-21	ksoftirqd/1	10:00:02	1
1090634	99	58	12,12	cyclictest	23	-21	ksoftirqd/1	09:20:00	1
1090627	99	58	25,6	cyclictest	12	-21	ksoftirqd/0	08:05:01	0
1090627	99	58	24,4	cyclictest	1095080	-21	latency_hist	08:35:02	0
1090627	99	58	20,9	cyclictest	12	-21	ksoftirqd/0	07:50:02	0
1090627	99	58	20,9	cyclictest	12	-21	ksoftirqd/0	07:50:01	0
1090627	99	58	17,11	cyclictest	12	-21	ksoftirqd/0	10:30:02	0
1090627	99	58	17,11	cyclictest	12	-21	ksoftirqd/0	10:30:01	0
1090627	99	58	16,9	cyclictest	275	-21	dbus-daemon	07:20:00	0
1090640	99	56	40,10	cyclictest	1097297	-21	cron	09:20:00	3
1090634	99	56	2,13	cyclictest	23	-21	ksoftirqd/1	12:25:00	1
1090634	99	56	1,8	cyclictest	1100690	-21	munin-run	10:25:01	1
1090627	99	56	22,4	cyclictest	1095229	-21	latency_hist	08:40:01	0
1090627	99	56	21,4	cyclictest	1104819	-21	latency_hist	11:45:01	0
1090640	99	55	12,25	cyclictest	37	-21	ksoftirqd/3	08:45:02	3
1090634	99	55	4,8	cyclictest	23	-21	ksoftirqd/1	09:10:00	1
1090627	99	55	25,7	cyclictest	12	-21	ksoftirqd/0	07:35:02	0
1090627	99	55	2,3	cyclictest	0	-21	swapper/0	12:40:02	0
1090634	99	54	6,10	cyclictest	23	-21	ksoftirqd/1	12:20:03	1
1090634	99	54	4,7	cyclictest	23	-21	ksoftirqd/1	10:15:02	1
1090634	99	54	4,10	cyclictest	23	-21	ksoftirqd/1	10:55:00	1
1090634	99	54	2,16	cyclictest	23	-21	ksoftirqd/1	12:39:59	1
1090627	99	54	22,6	cyclictest	12	-21	ksoftirqd/0	12:11:11	0
1090627	99	54	22,5	cyclictest	1094710	-21	cron	08:29:59	0
1090627	99	54	20,7	cyclictest	12	-21	ksoftirqd/0	10:35:01	0
1090627	99	54	16,9	cyclictest	1105086	-21	systemd-run	11:50:01	0
1090634	99	53	6,7	cyclictest	23	-21	ksoftirqd/1	08:35:01	1
1090634	99	53	5,10	cyclictest	23	-21	ksoftirqd/1	07:34:59	1
1090634	99	53	3,9	cyclictest	23	-21	ksoftirqd/1	11:45:00	1
1090634	99	53	2,13	cyclictest	23	-21	ksoftirqd/1	12:00:01	1
1090634	99	53	2,13	cyclictest	23	-21	ksoftirqd/1	12:00:00	1
1090634	99	53	10,9	cyclictest	23	-21	ksoftirqd/1	11:50:02	1
1090627	99	53	19,9	cyclictest	1094432	-21	date	08:20:02	0
1090627	99	53	18,9	cyclictest	12	-21	ksoftirqd/0	09:20:01	0
1090627	99	53	18,7	cyclictest	12	-21	ksoftirqd/0	08:25:02	0
1090636	99	52	1,4	cyclictest	13	1	rcu_preempt	09:59:59	2
1090634	99	52	8,9	cyclictest	23	-21	ksoftirqd/1	07:25:01	1
1090634	99	52	6,9	cyclictest	23	-21	ksoftirqd/1	09:55:00	1
1090634	99	52	6,9	cyclictest	23	-21	ksoftirqd/1	09:55:00	1
1090634	99	52	5,11	cyclictest	23	-21	ksoftirqd/1	09:25:00	1
1090634	99	52	3,13	cyclictest	23	-21	ksoftirqd/1	11:35:01	1
1090634	99	52	2,12	cyclictest	23	-21	ksoftirqd/1	07:55:00	1
1090634	99	52	18,11	cyclictest	23	-21	ksoftirqd/1	09:00:03	1
1090634	99	52	18,11	cyclictest	23	-21	ksoftirqd/1	09:00:02	1
1090627	99	52	7,18	cyclictest	168	50	irq/134-8000000	11:26:01	0
1090627	99	52	23,4	cyclictest	1106826	-21	latency_hist	12:20:02	0
1090627	99	52	22,4	cyclictest	1100146	-21	latency_hist	10:15:02	0
1090627	99	52	19,8	cyclictest	12	-21	ksoftirqd/0	09:29:16	0
1090640	99	51	35,12	cyclictest	1	-21	systemd	10:40:01	3
1090640	99	51	31,14	cyclictest	275	-21	dbus-daemon	09:15:01	3
1090634	99	51	8,10	cyclictest	23	-21	ksoftirqd/1	08:55:02	1
1090634	99	51	6,8	cyclictest	23	-21	ksoftirqd/1	08:10:02	1
1090634	99	51	42,5	cyclictest	0	-21	swapper/1	07:10:01	1
1090634	99	51	4,13	cyclictest	23	-21	ksoftirqd/1	08:30:02	1
1090627	99	51	23,10	cyclictest	12	-21	ksoftirqd/0	09:00:03	0
1090627	99	51	23,10	cyclictest	12	-21	ksoftirqd/0	09:00:02	0
1090627	99	51	21,6	cyclictest	12	-21	ksoftirqd/0	07:55:01	0
1090627	99	51	10,6	cyclictest	13	1	rcu_preempt	08:25:02	0
1090636	99	50	33,12	cyclictest	1	-21	systemd	10:15:01	2
1090634	99	50	9,9	cyclictest	23	-21	ksoftirqd/1	07:40:02	1
1090634	99	50	8,8	cyclictest	23	-21	ksoftirqd/1	11:20:01	1
1090634	99	50	8,12	cyclictest	23	-21	ksoftirqd/1	10:35:00	1
1090634	99	50	7,9	cyclictest	23	-21	ksoftirqd/1	09:50:03	1
1090634	99	50	2,13	cyclictest	23	-21	ksoftirqd/1	11:55:00	1
1090634	99	50	1,9	cyclictest	23	-21	ksoftirqd/1	11:10:01	1
1090634	99	50	11,9	cyclictest	23	-21	ksoftirqd/1	08:00:00	1
1090627	99	50	21,7	cyclictest	169	50	irq/224-8000000	09:33:54	0
1090627	99	50	20,5	cyclictest	291508	-1	kworker/0:2H	12:30:01	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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