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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.
Unexpectedly long latencies may be caused by SMIs
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 Mon Apr 27, 2026 00:45:26)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
3299622	99	83	67,12	cyclictest	12	-21	ksoftirqd/0	23:00:02	0
3299622	99	76	33,5	cyclictest	168	50	irq/134-8000000	22:40:01	0
3299625	99	74	33,10	cyclictest	23	-21	ksoftirqd/1	00:39:25	1
3299629	99	68	13,9	cyclictest	30	-21	ksoftirqd/2	23:35:01	2
3299629	99	67	21,9	cyclictest	30	-21	ksoftirqd/2	21:50:02	2
3299625	99	67	27,9	cyclictest	23	-21	ksoftirqd/1	00:05:02	1
3299632	99	66	12,43	cyclictest	3344312	-21	rm	22:40:02	3
3299622	99	66	57,3	cyclictest	150	-21	pr/ttyS2	19:15:01	0
3299632	99	64	5,11	cyclictest	37	-21	ksoftirqd/3	20:19:59	3
3299622	99	64	55,7	cyclictest	169	50	irq/224-8000000	22:19:23	0
3299632	99	63	6,12	cyclictest	37	-21	ksoftirqd/3	00:30:02	3
3299629	99	63	16,12	cyclictest	30	-21	ksoftirqd/2	00:04:13	2
3299625	99	61	16,9	cyclictest	23	-21	ksoftirqd/1	00:30:01	1
3299622	99	61	28,13	cyclictest	3380252	-21	ssh	00:05:00	0
3299625	99	60	17,11	cyclictest	23	-21	ksoftirqd/1	22:25:01	1
3299625	99	60	17,10	cyclictest	23	-21	ksoftirqd/1	21:20:02	1
3299625	99	60	15,9	cyclictest	23	-21	ksoftirqd/1	23:05:01	1
3299629	99	59	12,8	cyclictest	30	-21	ksoftirqd/2	21:20:02	2
3299625	99	59	9,5	cyclictest	13	1	rcu_preempt	21:25:01	1
3299625	99	59	6,10	cyclictest	23	-21	ksoftirqd/1	22:20:01	1
3299622	99	59	26,16	cyclictest	3323627	-21	ssh	21:51:12	0
3299632	99	58	6,9	cyclictest	37	-21	ksoftirqd/3	22:00:01	3
3299629	99	58	10,9	cyclictest	30	-21	ksoftirqd/2	19:35:02	2
3299629	99	58	10,8	cyclictest	30	-21	ksoftirqd/2	22:15:01	2
3299625	99	58	4,11	cyclictest	23	-21	ksoftirqd/1	22:09:03	1
3299632	99	57	5,10	cyclictest	37	-21	ksoftirqd/3	22:25:06	3
3299629	99	57	15,6	cyclictest	30	-21	ksoftirqd/2	23:27:22	2
3299629	99	57	14,9	cyclictest	30	-21	ksoftirqd/2	23:00:53	2
3299625	99	57	7,9	cyclictest	23	-21	ksoftirqd/1	22:05:01	1
3299625	99	57	7,9	cyclictest	23	-21	ksoftirqd/1	21:43:38	1
3299625	99	57	7,9	cyclictest	23	-21	ksoftirqd/1	21:43:37	1
3299625	99	57	7,11	cyclictest	23	-21	ksoftirqd/1	22:47:43	1
3299625	99	57	7,11	cyclictest	23	-21	ksoftirqd/1	21:48:37	1
3299625	99	57	1,8	cyclictest	23	-21	ksoftirqd/1	23:00:00	1
3299622	99	57	25,4	cyclictest	13	1	rcu_preempt	20:35:00	0
3299622	99	57	16,36	cyclictest	3305856	-21	cut	21:10:02	0
3299632	99	56	7,6	cyclictest	13	1	rcu_preempt	22:25:01	3
3299632	99	56	7,15	cyclictest	37	-21	ksoftirqd/3	21:40:00	3
3299632	99	56	5,8	cyclictest	37	-21	ksoftirqd/3	00:37:59	3
3299632	99	56	5,8	cyclictest	37	-21	ksoftirqd/3	00:00:03	3
3299632	99	56	14,6	cyclictest	13	1	rcu_preempt	19:45:03	3
3299629	99	56	37,13	cyclictest	1	-21	systemd	19:40:01	2
3299629	99	56	27,11	cyclictest	30	-21	ksoftirqd/2	00:14:09	2
3299629	99	56	27,11	cyclictest	30	-21	ksoftirqd/2	00:14:09	2
3299629	99	56	18,9	cyclictest	13	1	rcu_preempt	22:22:52	2
3299629	99	56	12,8	cyclictest	30	-21	ksoftirqd/2	21:00:01	2
3299629	99	56	11,10	cyclictest	30	-21	ksoftirqd/2	21:40:00	2
3299629	99	56	10,10	cyclictest	30	-21	ksoftirqd/2	00:19:40	2
3299625	99	56	7,7	cyclictest	23	-21	ksoftirqd/1	00:24:38	1
3299625	99	56	7,7	cyclictest	23	-21	ksoftirqd/1	00:24:38	1
3299625	99	56	6,14	cyclictest	23	-21	ksoftirqd/1	00:10:30	1
3299625	99	56	6,14	cyclictest	23	-21	ksoftirqd/1	00:10:29	1
3299625	99	56	15,11	cyclictest	23	-21	ksoftirqd/1	20:15:02	1
3299622	99	56	7,3	cyclictest	0	-21	swapper/0	22:05:03	0
3299622	99	56	44,7	cyclictest	169	50	irq/224-8000000	21:49:59	0
3299622	99	56	4,13	cyclictest	1	-21	systemd	00:10:01	0
3299632	99	55	5,9	cyclictest	37	-21	ksoftirqd/3	23:30:01	3
3299632	99	55	2,8	cyclictest	37	-21	ksoftirqd/3	21:55:01	3
3299632	99	55	13,10	cyclictest	13	1	rcu_preempt	23:01:33	3
3299632	99	55	10,6	cyclictest	13	1	rcu_preempt	21:13:53	3
3299629	99	55	8,10	cyclictest	30	-21	ksoftirqd/2	22:52:38	2
3299629	99	55	5,9	cyclictest	30	-21	ksoftirqd/2	21:32:22	2
3299629	99	55	5,9	cyclictest	30	-21	ksoftirqd/2	21:32:21	2
3299629	99	55	16,10	cyclictest	30	-21	ksoftirqd/2	00:25:44	2
3299629	99	55	12,9	cyclictest	30	-21	ksoftirqd/2	23:10:02	2
3299629	99	55	11,7	cyclictest	30	-21	ksoftirqd/2	00:36:53	2
3299625	99	55	8,10	cyclictest	23	-21	ksoftirqd/1	00:07:11	1
3299625	99	55	7,6	cyclictest	23	-21	ksoftirqd/1	23:26:05	1
3299625	99	55	5,8	cyclictest	23	-21	ksoftirqd/1	23:20:00	1
3299625	99	55	14,10	cyclictest	23	-21	ksoftirqd/1	22:55:02	1
3299622	99	55	33,16	cyclictest	275	-21	dbus-daemon	20:45:02	0
3299622	99	55	33,16	cyclictest	275	-21	dbus-daemon	20:45:01	0
3299622	99	55	28,12	cyclictest	3370284	-21	ssh	23:41:14	0
3299622	99	55	27,13	cyclictest	3372575	-21	ssh	23:46:45	0
3299622	99	55	27,13	cyclictest	3372575	-21	ssh	23:46:45	0
3299622	99	55	26,14	cyclictest	3313756	-21	ssh	21:28:18	0
3299622	99	55	26,13	cyclictest	3330881	-21	ssh	22:08:39	0
3299622	99	55	25,14	cyclictest	3358849	-21	ssh	23:14:36	0
3299632	99	54	2,8	cyclictest	37	-21	ksoftirqd/3	23:55:01	3
3299632	99	54	18,12	cyclictest	37	-21	ksoftirqd/3	22:55:00	3
3299632	99	54	12,5	cyclictest	13	1	rcu_preempt	22:20:01	3
3299632	99	54	11,6	cyclictest	13	1	rcu_preempt	22:47:45	3
3299632	99	54	10,5	cyclictest	13	1	rcu_preempt	21:41:27	3
3299632	99	54	10,5	cyclictest	13	1	rcu_preempt	21:41:26	3
3299629	99	54	8,9	cyclictest	30	-21	ksoftirqd/2	22:32:50	2
3299629	99	54	7,9	cyclictest	30	-21	ksoftirqd/2	23:24:01	2
3299629	99	54	6,5	cyclictest	30	-21	ksoftirqd/2	22:05:02	2
3299629	99	54	38,9	cyclictest	30	-21	ksoftirqd/2	21:25:22	2
3299629	99	54	13,12	cyclictest	30	-21	ksoftirqd/2	21:21:05	2
3299629	99	54	11,8	cyclictest	30	-21	ksoftirqd/2	00:25:03	2
3299629	99	54	11,8	cyclictest	30	-21	ksoftirqd/2	00:25:02	2
3299625	99	54	7,6	cyclictest	23	-21	ksoftirqd/1	19:58:46	1
3299625	99	54	5,9	cyclictest	23	-21	ksoftirqd/1	21:36:08	1
3299625	99	54	3,8	cyclictest	23	-21	ksoftirqd/1	21:52:26	1
3299625	99	54	11,4	cyclictest	13	1	rcu_preempt	23:35:50	1
3299622	99	54	35,17	cyclictest	0	-21	swapper/0	22:22:04	0
3299622	99	54	27,12	cyclictest	3377009	-21	ssh	23:57:09	0
3299622	99	54	1,14	cyclictest	3312448	-21	latency_hist	21:25:03	0
3299632	99	53	9,4	cyclictest	13	1	rcu_preempt	21:46:32	3
3299632	99	53	8,6	cyclictest	13	1	rcu_preempt	23:31:11	3
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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