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Default latency plot of system in rack #d, slot #3

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

Characteristics of the 100 highest latencies:

System rackdslot3.osadl.org (updated Sat Jan 10, 2026 12:45:46)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
1394	91	207	173,22	phc2sys	0	-21	swapper/3	07:08:51	3
23393	2	203	170,22	sleep1	0	-21	swapper/1	07:05:51	1
23667	2	202	169,22	sleep2	0	-21	swapper/2	07:09:25	2
23516	2	201	168,22	sleep0	0	-21	swapper/0	07:07:26	0
12430	2	139	0,3	sleep2	24015	99	cyclictest	07:50:24	2
1393	91	70	0,1	ptp4l	40	1	ktimersoftd/3	09:10:19	3
1393	91	64	0,1	ptp4l	40	1	ktimersoftd/3	08:10:16	3
28936	2	59	0,2	sleep3	0	-21	swapper/3	07:20:00	3
1393	91	58	0,1	ptp4l	40	1	ktimersoftd/3	10:09:15	3
31062	2	55	0,3	sleep1	0	-21	swapper/1	11:50:24	1
1344	91	55	0,2	getstats	0	-21	swapper/3	07:15:22	3
24015	99	53	20,5	cyclictest	33	-21	ksoftirqd/2	11:45:01	2
24015	99	52	18,6	cyclictest	33	-21	ksoftirqd/2	08:05:00	2
1393	91	52	0,1	ptp4l	40	1	ktimersoftd/3	09:24:43	3
24015	99	50	29,3	cyclictest	33	-21	ksoftirqd/2	08:25:13	2
24015	99	50	20,4	cyclictest	33	-21	ksoftirqd/2	12:15:16	2
24015	99	50	20,4	cyclictest	33	-21	ksoftirqd/2	12:15:16	2
24015	99	50	17,10	cyclictest	33	-21	ksoftirqd/2	09:40:17	2
24015	99	50	13,6	cyclictest	33	-21	ksoftirqd/2	10:25:12	2
11827	2	50	0,2	sleep3	0	-21	swapper/3	11:10:23	3
24015	99	49	26,3	cyclictest	33	-21	ksoftirqd/2	08:05:25	2
24015	99	49	19,4	cyclictest	33	-21	ksoftirqd/2	10:05:26	2
24015	99	49	14,6	cyclictest	33	-21	ksoftirqd/2	11:05:01	2
22526	2	49	0,2	sleep1	0	-21	swapper/1	10:25:20	1
24015	99	48	18,3	cyclictest	33	-21	ksoftirqd/2	08:35:15	2
24015	99	48	10,4	cyclictest	33	-21	ksoftirqd/2	07:25:23	2
24015	99	47	18,4	cyclictest	33	-21	ksoftirqd/2	09:20:16	2
24015	99	47	17,4	cyclictest	33	-21	ksoftirqd/2	07:15:15	2
24015	99	46	17,3	cyclictest	33	-21	ksoftirqd/2	09:55:12	2
24014	99	46	38,5	cyclictest	551	-21	rs:main		1
24015	99	45	19,6	cyclictest	33	-21	ksoftirqd/2	11:10:14	2
24015	99	45	18,6	cyclictest	33	-21	ksoftirqd/2	09:50:26	2
24015	99	45	18,6	cyclictest	33	-21	ksoftirqd/2	08:35:00	2
24015	99	45	13,9	cyclictest	33	-21	ksoftirqd/2	12:00:00	2
24015	99	45	13,3	cyclictest	33	-21	ksoftirqd/2	07:45:23	2
24015	99	44	32,9	cyclictest	33	-21	ksoftirqd/2	11:50:01	2
24015	99	44	17,7	cyclictest	33	-21	ksoftirqd/2	12:15:00	2
578	98	43	0,10	rtkit-daemon	0	-21	swapper/1	07:37:21	1
24015	99	43	8,6	cyclictest	33	-21	ksoftirqd/2	11:25:16	2
24015	99	43	31,10	cyclictest	33	-21	ksoftirqd/2	07:20:13	2
24015	99	43	14,3	cyclictest	33	-21	ksoftirqd/2	11:50:19	2
24015	99	43	13,5	cyclictest	33	-21	ksoftirqd/2	10:45:13	2
24015	99	43	12,3	cyclictest	33	-21	ksoftirqd/2	11:05:13	2
24015	99	43	11,5	cyclictest	33	-21	ksoftirqd/2	08:55:17	2
1393	91	43	0,0	ptp4l	40	1	ktimersoftd/3	08:05:15	3
578	98	42	0,9	rtkit-daemon	0	-21	swapper/1	08:02:31	1
24015	99	42	7,6	cyclictest	33	-21	ksoftirqd/2	12:34:59	2
24015	99	42	16,6	cyclictest	33	-21	ksoftirqd/2	09:35:00	2
24015	99	42	15,6	cyclictest	33	-21	ksoftirqd/2	12:20:22	2
24015	99	42	13,7	cyclictest	33	-21	ksoftirqd/2	07:30:25	2
24015	99	42	12,6	cyclictest	33	-21	ksoftirqd/2	07:55:16	2
24015	99	42	10,10	cyclictest	33	-21	ksoftirqd/2	10:15:00	2
1393	91	42	0,0	ptp4l	40	1	ktimersoftd/3	11:27:00	3
24015	99	41	6,6	cyclictest	33	-21	ksoftirqd/2	12:05:00	2
24015	99	41	3,4	cyclictest	33	-21	ksoftirqd/2	10:20:27	2
24015	99	41	32,2	cyclictest	33	-21	ksoftirqd/2	11:20:00	2
24015	99	41	26,12	cyclictest	33	-21	ksoftirqd/2	09:10:01	2
24015	99	41	12,3	cyclictest	33	-21	ksoftirqd/2	11:31:59	2
24015	99	41	10,4	cyclictest	33	-21	ksoftirqd/2	07:10:12	2
1393	91	41	0,0	ptp4l	40	1	ktimersoftd/3	11:45:58	3
24015	99	40	9,3	cyclictest	33	-21	ksoftirqd/2	09:35:24	2
24015	99	40	33,4	cyclictest	33	-21	ksoftirqd/2	08:20:00	2
24015	99	40	11,8	cyclictest	33	-21	ksoftirqd/2	11:35:13	2
24015	99	40	11,3	cyclictest	33	-21	ksoftirqd/2	12:27:19	2
578	98	39	0,28	rtkit-daemon	25	-21	ksoftirqd/1	12:20:15	1
24016	99	39	33,4	cyclictest	6710	-21	dump-pmu-power	12:10:00	3
24015	99	39	7,5	cyclictest	33	-21	ksoftirqd/2	09:00:26	2
24015	99	39	4,6	cyclictest	33	-21	ksoftirqd/2	08:50:01	2
24015	99	39	3,4	cyclictest	33	-21	ksoftirqd/2	10:15:16	2
24015	99	39	33,3	cyclictest	33	-21	ksoftirqd/2	09:20:00	2
24015	99	39	13,7	cyclictest	33	-21	ksoftirqd/2	09:25:24	2
24015	99	38	3,5	cyclictest	33	-21	ksoftirqd/2	10:40:24	2
24015	99	38	27,2	cyclictest	33	-21	ksoftirqd/2	10:50:26	2
24015	99	38	0,2	cyclictest	12	1	rcu_preempt	09:10:13	2
24014	99	38	31,4	cyclictest	25	-21	ksoftirqd/1	09:48:01	1
24014	99	38	29,3	cyclictest	25	-21	ksoftirqd/1	10:14:59	1
1393	91	38	0,1	ptp4l	40	1	ktimersoftd/3	09:00:45	3
24015	99	37	3,3	cyclictest	12	1	rcu_preempt	10:30:15	2
24015	99	37	32,3	cyclictest	33	-21	ksoftirqd/2	11:20:19	2
24015	99	37	32,2	cyclictest	33	-21	ksoftirqd/2	08:25:00	2
24015	99	37	32,2	cyclictest	33	-21	ksoftirqd/2	07:35:26	2
24015	99	37	31,3	cyclictest	33	-21	ksoftirqd/2	12:04:59	2
24015	99	37	10,3	cyclictest	33	-21	ksoftirqd/2	07:40:22	2
24015	99	37	0,3	cyclictest	12	1	rcu_preempt	08:45:24	2
24015	99	37	0,3	cyclictest	12	1	rcu_preempt	08:45:24	2
24014	99	37	30,4	cyclictest	25	-21	ksoftirqd/1	12:20:00	1
24014	99	37	30,4	cyclictest	25	-21	ksoftirqd/1	12:20:00	1
578	98	36	0,3	rtkit-daemon	32612	-21	hddtemp_smartct	09:40:15	1
578	98	36	0,2	rtkit-daemon	0	-21	swapper/1	11:33:47	1
24016	99	36	30,4	cyclictest	41	-21	ksoftirqd/3	11:32:32	3
24015	99	36	5,3	cyclictest	33	-21	ksoftirqd/2	08:40:28	2
24015	99	36	32,2	cyclictest	22955	-21	sshd	08:13:56	2
24015	99	36	31,3	cyclictest	33	-21	ksoftirqd/2	10:55:18	2
24015	99	36	27,3	cyclictest	33	-21	ksoftirqd/2	09:45:14	2
24014	99	36	31,3	cyclictest	25	-21	ksoftirqd/1	12:05:00	1
24014	99	36	30,4	cyclictest	25	-21	ksoftirqd/1	11:19:15	1
24013	99	36	30,4	cyclictest	9	-21	ksoftirqd/0	09:41:53	0
24013	99	36	30,3	cyclictest	3100	-21	cpu	08:40:15	0
24016	99	35	30,3	cyclictest	41	-21	ksoftirqd/3	12:20:00	3
24016	99	35	30,3	cyclictest	41	-21	ksoftirqd/3	12:20:00	3
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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This page was last modified on 2019-06-15 - 15:03