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Default latency plot of shadow in rack #b, slot #5

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
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ARM Freescale i.MX8M Plus @1600 MHz, Linux 5.17.0-rt15 (Profile)

Latency plot of shadow in rack #b, slot #5

Data to construct the above plot have been generated using the RT test utility cyclictest.
Command line: cyclictest -l100000000 -m -Sp99 -i200 -h400 -q done
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 rackbslot5s (updated Sun Jan 29, 2023 12:44:49)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
3812622	99	49	41,6	cyclictest	39	1	ktimers/3	09:40:15	3
3812618	99	49	42,4	cyclictest	3895359	-21	kworker/u8:0+events_unbound	12:20:27	2
3812614	99	49	38,5	cyclictest	3893206	-21	kworker/u8:2+events_unbound	11:12:28	1
3812618	99	47	40,4	cyclictest	3866428	-21	ls	09:45:01	2
3812614	99	47	35,9	cyclictest	3868135	-21	munin-plugin-st	09:50:01	1
3812622	99	46	35,7	cyclictest	3820065	-21	cut	07:30:01	3
3812614	99	46	38,6	cyclictest	3895359	-21	kworker/u8:0+events_unbound	12:05:26	1
3812622	99	44	35,7	cyclictest	39	1	ktimers/3	09:55:20	3
3812622	99	44	35,7	cyclictest	39	1	ktimers/3	09:55:20	3
3812609	99	44	37,5	cyclictest	3816589	-21	sshd	07:19:40	0
3812609	99	44	36,4	cyclictest	3905848	-21	cron	11:40:00	0
3812609	99	44	35,6	cyclictest	3823476	-21	sh	07:40:01	0
3812622	99	43	34,5	cyclictest	3837210	-21	apt-get	08:20:00	3
3812618	99	43	29,11	cyclictest	31	1	ktimers/2	11:35:18	2
3812614	99	43	26,9	cyclictest	13	1	rcu_preempt	08:00:17	1
3812622	99	42	34,5	cyclictest	3914414	-21	idleruntime-cro	12:05:00	3
3812622	99	42	30,8	cyclictest	3910974	-21	cron	11:55:01	3
3812614	99	42	36,4	cyclictest	3890472	-21	kworker/u8:0+events_unbound	10:55:13	1
3812614	99	42	35,4	cyclictest	3864706	-21	munin-plugin-st	09:40:00	1
3812614	99	42	25,6	cyclictest	3828348	-21	kworker/u8:0+events_unbound	08:48:27	1
3812622	99	41	30,6	cyclictest	0	-21	swapper/3	11:10:00	3
3812618	99	41	35,4	cyclictest	3879962	-21	kworker/u8:3+events_unbound	10:30:12	2
3812618	99	41	22,7	cyclictest	3828348	-21	kworker/u8:0+events_unbound	09:02:08	2
3812622	99	40	29,8	cyclictest	39	1	ktimers/3	09:50:16	3
3812622	99	40	26,9	cyclictest	3838575	-21	grep	08:20:30	3
3812622	99	40	14,14	cyclictest	0	-21	swapper/3	08:35:22	3
3812618	99	40	29,7	cyclictest	3900334	-21	grep	11:20:33	2
3812618	99	40	29,7	cyclictest	0	-21	swapper/2	11:19:59	2
3812609	99	40	1,3	cyclictest	0	-21	swapper/0	09:15:14	0
3812622	99	39	21,12	cyclictest	3887214	-21	gdbus	10:45:00	3
3812618	99	39	20,6	cyclictest	3893206	-21	kworker/u8:2+events_unbound	11:07:51	2
3812618	99	39	18,6	cyclictest	3895359	-21	kworker/u8:0+events_unbound	12:28:56	2
3812609	99	39	29,7	cyclictest	3875025	-21	cron	10:10:00	0
3812609	99	39	19,16	cyclictest	0	-21	swapper/0	08:40:01	0
3812618	99	38	29,5	cyclictest	0	-21	swapper/2	12:30:19	2
3812618	99	38	25,10	cyclictest	31	1	ktimers/2	07:20:15	2
3812618	99	38	25,10	cyclictest	31	1	ktimers/2	07:20:15	2
3812614	99	38	32,4	cyclictest	3809028	-21	kworker/u8:0+events_unbound	07:19:41	1
3812614	99	38	31,5	cyclictest	3895359	-21	kworker/u8:0+events_unbound	11:15:18	1
3812609	99	38	7,5	cyclictest	13	1	rcu_preempt	07:30:18	0
3812609	99	38	29,5	cyclictest	3878449	-21	munin-plugin-st	10:20:01	0
3812609	99	38	28,7	cyclictest	3885302	-21	sendmail	10:40:00	0
3812609	99	38	26,8	cyclictest	3906912	-21	runrttasks	11:40:29	0
3812622	99	37	26,7	cyclictest	0	-21	swapper/3	11:10:16	3
3812618	99	37	28,6	cyclictest	3867665	-21	unixbench_multi	09:45:31	2
3812618	99	37	20,8	cyclictest	3867816	-21	kworker/u8:2+events_unbound	10:00:41	2
3812618	99	37	20,8	cyclictest	3867816	-21	kworker/u8:2+events_unbound	10:00:41	2
3812614	99	37	27,5	cyclictest	0	-21	swapper/1	12:25:01	1
3812609	99	37	18,16	cyclictest	3828825	-21	gdbus	07:55:02	0
3812622	99	36	27,5	cyclictest	0	-21	swapper/3	11:39:59	3
3812618	99	36	28,4	cyclictest	0	-21	swapper/2	10:10:19	2
3812618	99	36	28,4	cyclictest	0	-21	swapper/2	09:30:01	2
3812614	99	36	26,6	cyclictest	3841240	-21	fschecks_time	08:30:24	1
3812614	99	36	25,7	cyclictest	0	-21	swapper/1	07:15:01	1
3812622	99	35	27,4	cyclictest	0	-21	swapper/3	10:55:38	3
3812622	99	35	24,7	cyclictest	3814252	-21	munin-run	07:15:01	3
3812618	99	35	25,6	cyclictest	3868506	-21	fschecks_count	09:50:19	2
3812618	99	35	20,5	cyclictest	3912490	-21	kworker/u8:1+events_unbound	12:11:41	2
3812618	99	35	17,6	cyclictest	3867816	-21	kworker/u8:2+events_unbound	10:53:47	2
3812618	99	35	13,5	cyclictest	3879962	-21	kworker/u8:3+events_unbound	11:54:56	2
3812614	99	35	27,5	cyclictest	3833800	-21	cron	08:10:00	1
3812614	99	35	23,9	cyclictest	3823472	-21	sendmail	07:40:01	1
3812609	99	35	29,4	cyclictest	3833809	-21	grep	08:10:00	0
3812609	99	35	28,4	cyclictest	3851049	-21	sendmail	09:00:01	0
3812622	99	34	26,5	cyclictest	0	-21	swapper/3	10:20:31	3
3812622	99	34	24,6	cyclictest	0	-21	swapper/3	10:35:00	3
3812622	99	34	22,8	cyclictest	3852328	-21	grep	09:00:31	3
3812622	99	34	21,8	cyclictest	3893449	-21	grep	11:00:32	3
3812618	99	34	27,4	cyclictest	0	-21	swapper/2	07:15:02	2
3812618	99	34	18,5	cyclictest	3831164	-21	kworker/u8:2+events_unbound	08:31:22	2
3812609	99	34	28,4	cyclictest	3879962	-21	kworker/u8:3+events_unbound	11:30:20	0
3812609	99	34	24,6	cyclictest	0	-21	swapper/0	09:10:00	0
3812609	99	34	23,8	cyclictest	12	1	ktimers/0	11:25:20	0
3812609	99	34	23,8	cyclictest	12	1	ktimers/0	11:25:20	0
3812622	99	33	9,5	cyclictest	40	-21	ksoftirqd/3	12:00:00	3
3812622	99	33	23,6	cyclictest	3881477	-21	grep	10:25:34	3
3812618	99	33	25,5	cyclictest	3914785	-21	fschecks_count	12:05:20	2
3812618	99	33	23,6	cyclictest	3821367	-21	grep	07:30:32	2
3812618	99	33	20,5	cyclictest	13	1	rcu_preempt	09:20:26	2
3812618	99	33	17,6	cyclictest	3849239	-21	kworker/u8:2+events_unbound	08:55:33	2
3812618	99	33	1,6	cyclictest	0	-21	swapper/2	08:00:18	2
3812618	99	33	16,5	cyclictest	3867816	-21	kworker/u8:2+events_unbound	09:59:54	2
3812618	99	33	16,5	cyclictest	3867816	-21	kworker/u8:2+events_unbound	09:59:54	2
3812618	99	33	10,5	cyclictest	0	-21	swapper/2	09:15:15	2
3812614	99	33	24,6	cyclictest	0	-21	swapper/1	10:25:00	1
3812614	99	33	24,6	cyclictest	0	-21	swapper/1	10:15:30	1
3812614	99	33	24,5	cyclictest	0	-21	swapper/1	10:05:31	1
3812609	99	33	25,5	cyclictest	0	-21	swapper/0	07:15:02	0
3812609	99	33	25,4	cyclictest	3840717	-21	munin-plugin-st	08:30:01	0
3812609	99	33	25,4	cyclictest	3840717	-21	munin-plugin-st	08:30:00	0
3812609	99	33	25,4	cyclictest	0	-21	swapper/0	09:10:29	0
3812609	99	33	25,4	cyclictest	0	-21	swapper/0	08:20:01	0
3812609	99	33	24,6	cyclictest	3859215	-21	kworker/u8:3+events_unbound	09:35:03	0
3812609	99	33	23,6	cyclictest	0	-21	swapper/0	12:35:01	0
3812622	99	32	9,5	cyclictest	40	-21	ksoftirqd/3	08:30:34	3
3812622	99	32	24,4	cyclictest	0	-21	swapper/3	08:05:19	3
3812618	99	32	8,4	cyclictest	13	1	rcu_preempt	08:00:00	2
3812618	99	32	26,4	cyclictest	3837226	-21	idleruntime-cro	08:20:00	2
3812618	99	32	25,3	cyclictest	0	-21	swapper/2	07:20:02	2
3812618	99	32	24,4	cyclictest	0	-21	swapper/2	08:24:51	2
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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