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Default latency plot of shadow in rack #c, slot #7

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.
Unexpectedly long latencies may be caused by SMIs
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 rackcslot7s.osadl.org (updated Wed Dec 31, 2025 00:44:55)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
2123669	2	307	0,9	sleep1	25	1	rcuc/1	19:10:00	1
2122401	2	262	0,9	sleep3	0	-21	swapper/3	19:05:15	3
1973	99	84	0,5	rtkit-daemon	4497	-21	PK-Backend	23:49:50	0
2123442	2	77	39,32	sleep0	0	-21	swapper/0	19:07:35	0
1973	99	76	0,62	rtkit-daemon	0	-21	swapper/2	19:05:16	2
2225399	2	74	0,7	sleep2	4497	-21	PK-Backend	23:55:22	2
2225399	2	74	0,7	sleep2	4497	-21	PK-Backend	23:55:21	2
1973	99	71	0,8	rtkit-daemon	1051	-21	thermald	00:10:34	0
1973	99	69	0,5	rtkit-daemon	4497	-21	PK-Backend	23:43:24	0
1973	99	69	0,4	rtkit-daemon	0	-21	swapper/0	00:15:02	0
1973	99	68	0,4	rtkit-daemon	4497	-21	PK-Backend	00:22:07	0
1973	99	62	0,9	rtkit-daemon	1972	-21	rtkit-daemon	23:43:05	1
1973	99	59	0,9	rtkit-daemon	1972	-21	rtkit-daemon	23:58:22	1
1973	99	59	0,9	rtkit-daemon	1972	-21	rtkit-daemon	23:58:21	1
2123781	99	58	25,17	cyclictest	42	-21	ksoftirqd/3	00:14:09	3
1973	99	56	0,9	rtkit-daemon	1972	-21	rtkit-daemon	23:48:40	1
2123771	99	54	0,49	cyclictest	1972	-21	rtkit-daemon	00:31:38	1
2123771	99	54	0,49	cyclictest	1972	-21	rtkit-daemon	00:31:37	1
1973	99	54	0,9	rtkit-daemon	1972	-21	rtkit-daemon	00:12:53	1
2131779	2	52	0,11	sleep3	41	1	rcuc/3	19:30:13	3
2123781	99	50	17,17	cyclictest	42	-21	ksoftirqd/3	19:50:01	3
2223402	2	49	0,8	chrt	0	-21	swapper/2	23:50:14	2
2123771	99	49	38,8	cyclictest	26	-21	ksoftirqd/1	00:22:22	1
2123781	99	48	27,7	cyclictest	42	-21	ksoftirqd/3	21:12:22	3
2123781	99	48	23,7	cyclictest	42	-21	ksoftirqd/3	19:24:14	3
2123781	99	48	14,18	cyclictest	42	-21	ksoftirqd/3	00:40:02	3
2123781	99	48	13,6	cyclictest	2151387	2	/usr/sbin/munin	20:25:22	3
2123781	99	47	6,10	cyclictest	2222961	-21	cron	23:49:59	3
2123781	99	47	4,10	cyclictest	937	-21	polkitd	00:22:22	3
2123781	99	46	3,13	cyclictest	2135441	-21	cstates	19:40:18	3
2123781	99	46	25,7	cyclictest	42	-21	ksoftirqd/3	19:54:04	3
2123781	99	46	16,16	cyclictest	42	-21	ksoftirqd/3	21:05:02	3
2123781	99	46	16,16	cyclictest	42	-21	ksoftirqd/3	21:05:02	3
2123781	99	46	14,17	cyclictest	42	-21	ksoftirqd/3	20:40:02	3
2123781	99	46	1,13	cyclictest	2150669	-21	sed	20:25:01	3
2123776	99	46	21,20	cyclictest	2234432	-21	irqstats	00:20:23	2
2123768	99	46	15,12	cyclictest	438	-20	systemd-journal	00:30:00	0
2123781	99	45	25,7	cyclictest	42	-21	ksoftirqd/3	19:11:46	3
2123781	99	45	17,15	cyclictest	42	-21	ksoftirqd/3	22:13:16	3
2123781	99	45	17,15	cyclictest	42	-21	ksoftirqd/3	22:13:16	3
1973	99	45	0,31	rtkit-daemon	0	-21	swapper/2	23:30:31	2
2198738	2	44	0,5	sleep2	33	1	rcuc/2	22:39:59	2
2123781	99	44	5,18	cyclictest	2215500	2	sed	23:25:30	3
2123781	99	44	24,7	cyclictest	42	-21	ksoftirqd/3	23:38:02	3
2123771	99	44	28,12	cyclictest	26	-21	ksoftirqd/1	23:55:00	1
2123771	99	44	24,5	cyclictest	26	-21	ksoftirqd/1	00:15:23	1
2123771	99	44	15,6	cyclictest	2134175	2	ntp_states	19:35:26	1
2123781	99	43	21,7	cyclictest	42	-21	ksoftirqd/3	21:16:09	3
2123771	99	43	25,6	cyclictest	26	-21	ksoftirqd/1	23:30:26	1
2123771	99	43	24,7	cyclictest	26	-21	ksoftirqd/1	22:05:12	1
2123771	99	43	23,12	cyclictest	26	-21	ksoftirqd/1	23:30:01	1
1973	99	43	0,32	rtkit-daemon	0	-21	swapper/2	22:58:53	2
2123781	99	42	23,7	cyclictest	42	-21	ksoftirqd/3	20:18:15	3
2123781	99	42	23,7	cyclictest	42	-21	ksoftirqd/3	20:18:14	3
2123781	99	42	10,12	cyclictest	42	-21	ksoftirqd/3	21:50:01	3
2123776	99	42	25,13	cyclictest	2148758	-21	cron	20:20:00	2
2123776	99	42	25,13	cyclictest	2148758	-21	cron	20:20:00	2
2123771	99	42	26,5	cyclictest	26	-21	ksoftirqd/1	22:52:55	1
2123771	99	42	24,7	cyclictest	26	-21	ksoftirqd/1	19:50:19	1
2123771	99	42	24,6	cyclictest	26	-21	ksoftirqd/1	22:00:02	1
2123771	99	42	24,6	cyclictest	26	-21	ksoftirqd/1	21:50:08	1
2123771	99	42	24,6	cyclictest	26	-21	ksoftirqd/1	20:05:29	1
2123771	99	42	23,14	cyclictest	2211487	-21	df	23:15:15	1
1973	99	42	0,10	rtkit-daemon	2195915	-21	df	22:30:14	2
2174422	2	41	0,8	sleep0	0	-21	swapper/0	21:30:15	0
2123781	99	41	8,18	cyclictest	42	-21	ksoftirqd/3	00:05:14	3
2123781	99	41	7,17	cyclictest	42	-21	ksoftirqd/3	23:40:29	3
2123781	99	41	12,11	cyclictest	42	-21	ksoftirqd/3	22:57:01	3
2123781	99	41	11,11	cyclictest	42	-21	ksoftirqd/3	21:59:59	3
2123771	99	41	24,7	cyclictest	26	-21	ksoftirqd/1	21:15:11	1
2123771	99	41	23,5	cyclictest	26	-21	ksoftirqd/1	00:05:02	1
2123771	99	41	2,12	cyclictest	26	-21	ksoftirqd/1	19:49:25	1
1973	99	41	0,30	rtkit-daemon	0	-21	swapper/2	00:33:37	2
1973	99	41	0,30	rtkit-daemon	0	-21	swapper/2	00:33:37	2
1973	99	41	0,28	rtkit-daemon	0	-21	swapper/3	22:35:11	3
2123781	99	40	9,12	cyclictest	42	-21	ksoftirqd/3	20:41:01	3
2123781	99	40	9,12	cyclictest	42	-21	ksoftirqd/3	20:41:00	3
2123781	99	40	6,17	cyclictest	42	-21	ksoftirqd/3	23:57:09	3
2123781	99	40	6,17	cyclictest	42	-21	ksoftirqd/3	23:57:09	3
2123781	99	40	5,17	cyclictest	2173195	-21	ntp_states	21:25:26	3
2123781	99	40	5,17	cyclictest	2173195	-21	ntp_states	21:25:25	3
2123781	99	40	22,7	cyclictest	42	-21	ksoftirqd/3	00:31:28	3
2123781	99	40	22,7	cyclictest	42	-21	ksoftirqd/3	00:31:27	3
2123781	99	40	22,14	cyclictest	2228057	-21	chrt	00:03:35	3
2123781	99	40	12,15	cyclictest	42	-21	ksoftirqd/3	19:19:05	3
2123781	99	40	1,14	cyclictest	2172104	-21	taskset	21:24:13	3
2123776	99	40	23,12	cyclictest	438	-20	systemd-journal	23:29:59	2
2123771	99	40	24,6	cyclictest	26	-21	ksoftirqd/1	19:30:19	1
2123771	99	40	24,5	cyclictest	26	-21	ksoftirqd/1	00:25:13	1
2123771	99	40	21,6	cyclictest	26	-21	ksoftirqd/1	22:25:29	1
2123771	99	40	19,17	cyclictest	2173898	-21	cron	21:29:59	1
2123771	99	40	19,17	cyclictest	2173898	-21	cron	21:29:59	1
2123768	99	40	24,12	cyclictest	2206122	-21	tr	23:00:15	0
2123768	99	40	17,19	cyclictest	2160784	-21	ntp_states	20:50:27	0
1973	99	40	0,25	rtkit-daemon	0	-21	swapper/3	23:15:02	3
2123781	99	39	8,18	cyclictest	42	-21	ksoftirqd/3	21:40:06	3
2123781	99	39	8,11	cyclictest	42	-21	ksoftirqd/3	20:54:23	3
2123781	99	39	7,16	cyclictest	42	-21	ksoftirqd/3	23:15:09	3
2123781	99	39	7,16	cyclictest	42	-21	ksoftirqd/3	00:25:02	3
2123781	99	39	7,15	cyclictest	42	-21	ksoftirqd/3	20:31:59	3
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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