OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of system in rack #7, slot #2

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.

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 rack7slot2.osadl.org (updated Mon Jan 12, 2026 12:44:11)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
3961068	99	112	99,6	cyclictest	4075412	-21	kworker/u4:3+events_unbound	10:50:46	0
3961068	99	112	102,8	cyclictest	4062362	-21	kworker/u4:7+events_unbound	10:31:59	0
3961068	99	111	100,8	cyclictest	3977551	-21	kworker/u4:15+events_unbound	08:20:18	0
3961068	99	92	82,8	cyclictest	4032704	-21	kworker/u4:4+events_unbound	10:15:41	0
3961068	99	90	81,6	cyclictest	3977551	-21	kworker/u4:15+events_unbound	09:15:34	0
3961068	99	89	82,5	cyclictest	4058690	-21	kworker/u4:4+events_unbound	10:45:45	0
3961068	99	89	81,6	cyclictest	4126502	-21	kworker/u4:6+events_unbound	11:50:58	0
3961068	99	88	78,8	cyclictest	4100612	-21	kworker/u4:9+events_unbound	11:19:44	0
3961069	99	85	79,4	cyclictest	4155244	-21	kworker/u4:7+events_unbound	12:26:05	1
3961069	99	85	75,8	cyclictest	3981441	-21	kworker/u4:5+events_unbound	08:55:29	1
3961068	99	85	75,7	cyclictest	4122161	-21	kworker/u4:11+events_unbound	11:55:59	0
3961069	99	83	28,39	cyclictest	0	-21	swapper/1	12:30:14	1
3961068	99	82	75,5	cyclictest	4139515	-21	kworker/u4:6+events_unbound	12:06:01	0
3961068	99	81	74,5	cyclictest	4159561	-21	kworker/u4:8+events_unbound	12:31:06	0
3961068	99	79	68,9	cyclictest	3975035	-21	kworker/u4:0+events_unbound	08:30:00	0
3961069	99	78	65,8	cyclictest	4119733	-21	latency_hist	11:40:01	1
3961069	99	78	65,8	cyclictest	4119733	-21	latency_hist	11:40:01	1
3961069	99	78	27,39	cyclictest	0	-21	swapper/1	09:55:33	1
3961068	99	77	68,7	cyclictest	3968601	-21	kworker/u4:14+events_unbound	07:55:10	0
3961068	99	76	63,5	cyclictest	3998471	-21	kworker/u4:2+events_unbound	10:25:43	0
3961069	99	75	25,37	cyclictest	0	-21	swapper/1	10:30:31	1
3961068	99	75	62,10	cyclictest	4119975	-21	ssh	11:40:20	0
3961069	99	74	26,35	cyclictest	0	-21	swapper/1	11:25:29	1
3961069	99	73	64,7	cyclictest	4122154	-21	kworker/u4:2+events_unbound	11:45:59	1
3961069	99	73	63,7	cyclictest	3963538	-21	kworker/u4:0+events_unbound	07:20:01	1
3961069	99	73	62,8	cyclictest	4019796	-21	kworker/u4:10+events_unbound	09:50:38	1
3961069	99	73	33,21	cyclictest	4122159	-21	kworker/u4:9-rpciod	12:00:36	1
3961069	99	72	3,40	cyclictest	4018540	-21	ntpq	09:40:26	1
3961069	99	72	3,40	cyclictest	4018540	-21	ntpq	09:40:26	1
3961069	99	72	21,38	cyclictest	0	-21	swapper/1	11:10:38	1
3961069	99	71	31,18	cyclictest	0	-21	swapper/1	10:05:39	1
3961069	99	71	13,32	cyclictest	4078559	-21	/usr/sbin/munin	10:50:38	1
3961068	99	71	64,5	cyclictest	3968601	-21	kworker/u4:14+events_unbound	08:05:16	0
3961068	99	71	63,6	cyclictest	4109256	-21	kworker/u4:4+events_unbound	11:30:55	0
3961069	99	70	22,28	cyclictest	0	-21	swapper/1	10:20:19	1
3961068	99	70	63,5	cyclictest	4126501	-21	kworker/u4:5+events_unbound	12:21:04	0
3961069	99	69	63,4	cyclictest	3972496	-21	kworker/u4:8+events_unbound	08:50:29	1
3961069	99	68	38,27	cyclictest	0	-21	swapper/1	09:30:35	1
3961069	99	68	3,36	cyclictest	4037581	-21	ssh	10:02:55	1
3961069	99	68	2,41	cyclictest	4102227	-21	ssh	11:19:21	1
3961069	99	68	2,40	cyclictest	4156232	-21	ssh	12:23:41	1
3961069	99	68	2,40	cyclictest	4007027	-21	ssh	09:26:59	1
3961069	99	67	2,39	cyclictest	4071627	-21	ssh	10:42:54	1
3961069	99	67	2,37	cyclictest	4106442	-21	ssh	11:24:18	1
3961069	99	67	2,36	cyclictest	4148859	-21	ssh	12:13:55	1
3961069	99	67	2,36	cyclictest	4074850	-21	ssh	10:46:10	1
3961069	99	67	1,39	cyclictest	4083440	-21	ssh	10:56:17	1
3961069	99	67	1,37	cyclictest	4000087	-21	ssh	09:19:47	1
3961069	99	66	3,36	cyclictest	4114341	-21	ssh	11:33:18	1
3961069	99	66	2,40	cyclictest	4131463	-21	ssh	11:53:28	1
3961069	99	66	2,39	cyclictest	4143209	-21	ssh	12:06:39	1
3961069	99	66	2,39	cyclictest	4087710	-21	ssh	11:01:19	1
3961069	99	66	2,38	cyclictest	4167619	-21	ssh	12:36:25	1
3961069	99	66	1,38	cyclictest	4002928	-21	ssh	09:22:21	1
3961068	99	66	59,5	cyclictest	3966081	-21	kworker/u4:0+events_unbound	07:40:03	0
3961069	99	65	60,3	cyclictest	3981441	-21	kworker/u4:5+events_unbound	08:35:22	1
3961069	99	65	2,36	cyclictest	4058369	-21	ssh	10:27:06	1
3961069	99	65	1,37	cyclictest	4151159	-21	ssh	12:17:26	1
3961068	99	65	57,6	cyclictest	3991541	-21	kworker/u4:19+events_unbound	09:35:37	0
3961068	99	65	15,48	cyclictest	0	-21	swapper/0	10:55:28	0
3961069	99	64	43,18	cyclictest	4022803	-21	ntp_kernel_pll_	09:45:29	1
3961069	99	64	3,33	cyclictest	4047172	-21	ssh	10:14:42	1
3961069	99	64	2,38	cyclictest	4092906	-21	ssh	11:07:55	1
3961069	99	64	2,34	cyclictest	4134097	-21	ssh	11:55:48	1
3961069	99	64	1,37	cyclictest	3972075	-21	ntpq	07:50:30	1
3961069	99	62	9,32	cyclictest	4050397	-21	diskmemload	10:18:00	1
3961069	99	61	56,3	cyclictest	3977548	-21	kworker/u4:11+events_unbound	08:15:17	1
3961069	99	61	11,28	cyclictest	0	-21	swapper/1	08:10:27	1
3961068	99	61	54,5	cyclictest	3966085	-21	kworker/u4:5+events_unbound	07:30:02	0
3961069	99	60	51,6	cyclictest	3966088	-21	kworker/u4:11+events_unbound	07:45:01	1
3961069	99	60	3,51	cyclictest	4065427	-21	ntpq	10:35:31	1
3961069	99	60	15,26	cyclictest	0	-21	swapper/1	09:10:24	1
3961068	99	59	53,4	cyclictest	4139515	-21	kworker/u4:6+events_unbound	12:05:00	0
3961068	99	59	42,11	cyclictest	4054825	-21	sh	10:23:17	0
3961068	99	59	41,16	cyclictest	4087016	-21	/usr/sbin/munin	11:00:37	0
3961069	99	58	30,25	cyclictest	0	-21	swapper/1	09:35:34	1
3961069	99	58	1,35	cyclictest	1068	-21	snmpd	11:43:28	1
3961069	99	58	1,34	cyclictest	3990479	-21	apt-get	09:05:15	1
3961068	99	58	51,5	cyclictest	3971228	-21	kworker/u4:5+events_unbound	07:50:06	0
3961069	99	57	1,34	cyclictest	3981617	-21	/usr/sbin/munin	08:30:26	1
3961068	99	57	50,5	cyclictest	4019796	-21	kworker/u4:10+events_unbound	09:55:39	0
3961068	99	57	43,10	cyclictest	4021881	-21	latency_hist	09:45:01	0
3961068	99	57	43,10	cyclictest	4021881	-21	latency_hist	09:45:01	0
3961068	99	56	49,6	cyclictest	3972493	-21	kworker/u4:3+events_unbound	08:00:15	0
3961068	99	56	36,16	cyclictest	4088357	-21	kworker/u4:3-nfsiod	11:05:35	0
3961069	99	55	24,25	cyclictest	0	-21	swapper/1	08:25:04	1
3961069	99	55	1,31	cyclictest	3966973	-21	ps	07:30:35	1
3961069	99	55	10,42	cyclictest	1068	-21	snmpd	07:46:09	1
3961068	99	55	1,50	cyclictest	4094985	-21	if_eth0	11:10:21	0
3961069	99	54	3,47	cyclictest	3975783	-21	ntpq	08:05:25	1
3961069	99	54	3,47	cyclictest	3973294	-21	ntpq	07:55:27	1
3961069	99	54	2,50	cyclictest	3989785	-21	ntpq	09:00:25	1
3961069	99	54	2,50	cyclictest	3989785	-21	ntpq	09:00:25	1
3961069	99	54	2,49	cyclictest	3984758	-21	ntpq	08:40:28	1
3961069	99	54	1,48	cyclictest	3965712	-21	ps	07:25:33	1
3961068	99	54	46,6	cyclictest	4053740	-21	kworker/u4:16+events_unbound	10:41:06	0
3961068	99	54	40,6	cyclictest	4066706	-21	kworker/u4:10+events_unbound	10:37:00	0
3961068	99	54	36,16	cyclictest	3992197	-21	fschecks_count	09:10:19	0
3961069	99	53	2,47	cyclictest	3986083	-21	ntpq	08:45:33	1
3961069	99	53	1,48	cyclictest	3968191	-21	ntpq	07:35:32	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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