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Default latency plot of system in rack #d, slot #4

x86 Intel Atom E3845 @1910 MHz, Linux 4.19.37-rt19 (Profile)

Latency plot of system in rack #d, slot #4

Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Command line: cyclictest -l100000000 -m -Up99 -i200 -h400 --smi -q
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance

Characteristics of the 100 highest latencies:

System rackdslot4.osadl.org (updated Mon Mar 07, 2022 12:46:05)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
14876	2	88	13,19	sleep1	0	-21	swapper/1	07:06:03	1
12493	2	79	0,8	sleep0	15471	99	cyclictest	07:45:14	0
15132	2	75	4,59	sleep3	0	-21	swapper/3	07:09:20	3
26836	2	74	0,7	sleep3	15474	99	cyclictest	12:00:14	3
15173	2	73	7,10	sleep2	0	-21	swapper/2	07:09:51	2
22247	2	69	0,4	sleep2	33	-21	ksoftirqd/2	11:55:12	2
29717	2	66	0,8	sleep1	15472	99	cyclictest	10:45:09	1
13866	2	65	0,4	sleep1	25	-21	ksoftirqd/1	10:25:13	1
15474	99	64	53,6	cyclictest	41	-21	ksoftirqd/3	07:15:21	3
15474	99	60	51,5	cyclictest	41	-21	ksoftirqd/3	09:40:18	3
29447	2	57	0,2	sleep3	0	-21	swapper/3	10:45:07	3
15473	99	56	12,5	cyclictest	33	-21	ksoftirqd/2	07:15:20	2
22023	2	54	0,2	sleep2	0	-21	swapper/2	09:55:16	2
20469	2	54	0,2	sleep3	0	-21	swapper/3	11:50:39	3
15473	99	54	43,5	cyclictest	33	-21	ksoftirqd/2	10:50:19	2
565	98	53	0,13	rtkit-daemon	0	-21	swapper/1	07:22:43	1
15474	99	53	43,4	cyclictest	41	-21	ksoftirqd/3	08:35:14	3
15473	99	53	38,4	cyclictest	33	-21	ksoftirqd/2	07:45:17	2
15473	99	53	24,4	cyclictest	33	-21	ksoftirqd/2	07:55:17	2
15474	99	52	42,5	cyclictest	41	-21	ksoftirqd/3	07:25:17	3
15474	99	52	42,5	cyclictest	41	-21	ksoftirqd/3	07:25:17	3
15472	99	52	38,11	cyclictest	801	-21	cron	11:30:00	1
15472	99	52	38,11	cyclictest	801	-21	cron	11:29:59	1
17840	2	51	0,2	sleep1	0	-21	swapper/1	11:50:09	1
565	98	49	0,10	rtkit-daemon	0	-21	swapper/1	07:37:28	1
30124	2	49	0,2	sleep2	30126	-21	cat	07:25:25	2
30124	2	49	0,2	sleep2	30126	-21	cat	07:25:24	2
15474	99	49	32,4	cyclictest	41	-21	ksoftirqd/3	07:55:13	3
15474	99	49	27,4	cyclictest	41	-21	ksoftirqd/3	07:45:11	3
15473	99	49	42,3	cyclictest	33	-21	ksoftirqd/2	08:35:17	2
15473	99	49	19,6	cyclictest	33	-21	ksoftirqd/2	12:00:17	2
26418	2	48	0,2	sleep2	0	-21	swapper/2	10:40:15	2
15474	99	48	31,4	cyclictest	41	-21	ksoftirqd/3	10:30:18	3
15473	99	48	4,4	cyclictest	12	1	rcu_preempt	12:10:11	2
15471	99	48	41,4	cyclictest	9	-21	ksoftirqd/0	08:00:17	0
15474	99	47	0,10	cyclictest	41	-21	ksoftirqd/3	10:35:18	3
15473	99	47	37,4	cyclictest	33	-21	ksoftirqd/2	09:35:19	2
15474	99	46	40,3	cyclictest	41	-21	ksoftirqd/3	08:05:18	3
15474	99	46	37,5	cyclictest	41	-21	ksoftirqd/3	09:35:18	3
15474	99	46	31,4	cyclictest	41	-21	ksoftirqd/3	08:20:40	3
15474	99	46	27,5	cyclictest	41	-21	ksoftirqd/3	08:25:12	3
15474	99	46	26,7	cyclictest	41	-21	ksoftirqd/3	09:00:11	3
15473	99	46	7,7	cyclictest	33	-21	ksoftirqd/2	08:15:01	2
15473	99	46	6,8	cyclictest	33	-21	ksoftirqd/2	08:10:55	2
15473	99	46	6,5	cyclictest	33	-21	ksoftirqd/2	08:00:07	2
15473	99	46	28,4	cyclictest	33	-21	ksoftirqd/2	11:30:29	2
15473	99	46	19,3	cyclictest	33	-21	ksoftirqd/2	09:00:19	2
15473	99	46	1,11	cyclictest	33	-21	ksoftirqd/2	08:55:17	2
15474	99	45	38,4	cyclictest	41	-21	ksoftirqd/3	07:35:17	3
15474	99	45	37,4	cyclictest	41	-21	ksoftirqd/3	11:15:15	3
15474	99	45	30,4	cyclictest	41	-21	ksoftirqd/3	11:10:09	3
15474	99	45	28,4	cyclictest	41	-21	ksoftirqd/3	10:40:13	3
15474	99	45	0,11	cyclictest	41	-21	ksoftirqd/3	11:20:07	3
15474	99	45	0,11	cyclictest	41	-21	ksoftirqd/3	11:20:07	3
15474	99	45	0,11	cyclictest	41	-21	ksoftirqd/3	07:30:19	3
15473	99	45	38,4	cyclictest	33	-21	ksoftirqd/2	07:35:17	2
15473	99	45	37,4	cyclictest	33	-21	ksoftirqd/2	07:50:05	2
15473	99	45	30,4	cyclictest	33	-21	ksoftirqd/2	08:05:16	2
15473	99	45	30,4	cyclictest	33	-21	ksoftirqd/2	07:10:14	2
14994	2	45	16,17	sleep0	0	-21	swapper/0	07:07:31	0
15474	99	44	4,7	cyclictest	12	1	rcu_preempt	09:17:44	3
15474	99	44	4,4	cyclictest	12	1	rcu_preempt	09:10:18	3
15474	99	44	33,5	cyclictest	41	-21	ksoftirqd/3	10:15:20	3
15474	99	44	29,4	cyclictest	41	-21	ksoftirqd/3	08:10:16	3
15474	99	44	27,4	cyclictest	41	-21	ksoftirqd/3	09:30:36	3
15473	99	44	6,4	cyclictest	12	1	rcu_preempt	10:35:37	2
15473	99	44	33,6	cyclictest	33	-21	ksoftirqd/2	11:40:14	2
15473	99	44	27,4	cyclictest	33	-21	ksoftirqd/2	09:20:15	2
15473	99	44	25,5	cyclictest	33	-21	ksoftirqd/2	08:45:14	2
15473	99	44	25,5	cyclictest	33	-21	ksoftirqd/2	08:45:13	2
5846	2	43	0,2	sleep2	0	-21	swapper/2	10:55:13	2
15474	99	43	37,3	cyclictest	41	-21	ksoftirqd/3	09:25:20	3
15474	99	43	35,4	cyclictest	41	-21	ksoftirqd/3	08:00:15	3
15474	99	43	28,4	cyclictest	41	-21	ksoftirqd/3	10:00:07	3
15474	99	43	28,4	cyclictest	41	-21	ksoftirqd/3	10:00:07	3
15474	99	43	23,16	cyclictest	41	-21	ksoftirqd/3	10:25:12	3
15474	99	43	1,4	cyclictest	12	1	rcu_preempt	10:05:07	3
15474	99	43	0,3	cyclictest	41	-21	ksoftirqd/3	12:05:17	3
15473	99	43	34,5	cyclictest	33	-21	ksoftirqd/2	10:05:16	2
15473	99	43	33,5	cyclictest	33	-21	ksoftirqd/2	07:40:15	2
15473	99	43	22,8	cyclictest	33	-21	ksoftirqd/2	10:45:09	2
15473	99	43	11,5	cyclictest	33	-21	ksoftirqd/2	11:45:42	2
15473	99	43	0,4	cyclictest	33	-21	ksoftirqd/2	08:50:18	2
1143	91	43	0,7	getstats	15474	99	cyclictest	08:43:41	3
565	98	42	0,2	rtkit-daemon	0	-21	swapper/1	11:15:24	1
15474	99	42	4,10	cyclictest	41	-21	ksoftirqd/3	09:05:17	3
15474	99	42	35,4	cyclictest	41	-21	ksoftirqd/3	07:10:18	3
15474	99	42	32,4	cyclictest	41	-21	ksoftirqd/3	11:35:14	3
15474	99	42	24,4	cyclictest	41	-21	ksoftirqd/3	08:55:09	3
15473	99	42	33,5	cyclictest	33	-21	ksoftirqd/2	09:30:04	2
15473	99	42	25,4	cyclictest	33	-21	ksoftirqd/2	11:35:13	2
15473	99	42	1,5	cyclictest	33	-21	ksoftirqd/2	09:45:17	2
15474	99	41	5,4	cyclictest	12	1	rcu_preempt	08:50:21	3
15474	99	41	35,4	cyclictest	41	-21	ksoftirqd/3	07:50:14	3
15474	99	41	32,5	cyclictest	41	-21	ksoftirqd/3	12:25:14	3
15474	99	41	27,5	cyclictest	41	-21	ksoftirqd/3	08:20:00	3
15474	99	41	26,4	cyclictest	41	-21	ksoftirqd/3	11:45:47	3
15474	99	41	23,5	cyclictest	41	-21	ksoftirqd/3	12:20:11	3
15473	99	41	8,5	cyclictest	33	-21	ksoftirqd/2	09:05:19	2
15473	99	41	34,4	cyclictest	33	-21	ksoftirqd/2	12:35:17	2
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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This page was last modified on 2019-06-15 - 15:04