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 Wed Apr 22, 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
4018476	99	116	106,7	cyclictest	4102444	-21	apt-get	10:10:12	0
4018477	99	104	93,5	cyclictest	4122364	-21	kworker/u4:0+events_unbound	10:33:54	1
4018476	99	97	69,24	cyclictest	53	-21	kswapd0	10:45:09	0
4018476	99	93	85,6	cyclictest	4046611	-21	kworker/u4:13+events_unbound	08:58:37	0
4018477	99	89	80,6	cyclictest	19786	-21	kworker/u4:12+events_unbound	12:24:16	1
4018477	99	88	80,5	cyclictest	4100818	-21	kworker/u4:12+events_unbound	10:18:47	1
4018476	99	87	80,5	cyclictest	4040235	-21	kworker/u4:3+events_unbound	08:38:34	0
4018476	99	86	81,3	cyclictest	4131192	-21	kworker/u4:12+events_unbound	10:43:59	0
4018477	99	85	76,7	cyclictest	53	-21	kswapd0	11:40:34	1
4018476	99	75	68,5	cyclictest	3803076	-21	kworker/u4:0+events_unbound	07:18:16	0
4018477	99	72	63,6	cyclictest	4046612	-21	kworker/u4:14+events_unbound	09:43:43	1
4018477	99	71	62,5	cyclictest	4027388	-21	kworker/u4:11+events_unbound	08:55:02	1
4018476	99	70	3,51	cyclictest	4142641	-21	ssh	10:55:29	0
4018477	99	62	57,3	cyclictest	3663592	-21	kworker/u4:8+events_unbound	09:03:37	1
4018477	99	62	51,9	cyclictest	4614	-21	ssh	12:00:01	1
4018477	99	62	51,9	cyclictest	4614	-21	ssh	12:00:01	1
4018477	99	61	4,39	cyclictest	4177628	-21	ssh	11:35:27	1
4018476	99	61	50,5	cyclictest	4157186	-21	kworker/u4:2+events_unbound	11:20:02	0
4018476	99	60	49,7	cyclictest	0	-21	swapper/0	10:35:32	0
4018476	99	60	41,17	cyclictest	4033802	-21	idleruntime-cro	08:10:00	0
4018476	99	59	38,15	cyclictest	4614	-21	ssh	12:00:02	0
4018476	99	59	38,15	cyclictest	4614	-21	ssh	12:00:01	0
4018477	99	58	50,6	cyclictest	4051313	-21	kworker/u4:20+events_unbound	09:13:41	1
4018476	99	58	47,7	cyclictest	0	-21	swapper/0	09:10:28	0
4018477	99	57	49,5	cyclictest	4046612	-21	kworker/u4:14+events_unbound	09:18:39	1
4018477	99	57	47,7	cyclictest	19785	-21	kworker/u4:11-rpciod	12:30:16	1
4018477	99	57	29,24	cyclictest	53	-21	kswapd0	11:30:19	1
4018476	99	57	49,6	cyclictest	4166121	-21	kworker/u4:7+events_unbound	11:51:09	0
4018476	99	57	49,6	cyclictest	4166121	-21	kworker/u4:7+events_unbound	11:51:08	0
4018476	99	57	47,7	cyclictest	4098958	-21	/usr/sbin/munin	10:05:23	0
4018476	99	57	47,7	cyclictest	4098958	-21	/usr/sbin/munin	10:05:22	0
4018477	99	56	49,5	cyclictest	4063157	-21	df	09:25:18	1
4018476	99	56	46,7	cyclictest	4054090	-21	aten_r7power_en	09:15:17	0
4018476	99	56	42,8	cyclictest	4179474	-21	kworker/u4:17-rpciod	11:50:02	0
4018476	99	56	41,12	cyclictest	30952	-21	latency_hist	12:30:02	0
4018476	99	56	38,4	cyclictest	4063863	-21	uname	09:25:36	0
4018477	99	55	47,6	cyclictest	4085576	-21	/usr/sbin/munin	09:50:21	1
4018477	99	55	44,7	cyclictest	4134350	-21	timerandwakeup	10:45:44	1
4018476	99	55	47,6	cyclictest	4090655	-21	unixbench-2d	09:55:39	0
4018476	99	55	47,4	cyclictest	0	-21	swapper/0	11:40:34	0
4018476	99	55	37,12	cyclictest	4074039	-21	sh	09:37:12	0
4018476	99	55	1,4	cyclictest	4115811	-21	apt-get	10:25:13	0
4018477	99	54	48,4	cyclictest	4135591	-21	kworker/u4:2+events_unbound	10:59:03	1
4018477	99	54	39,11	cyclictest	27079	-21	fschecks_count	12:25:19	1
4018477	99	54	38,6	cyclictest	3803076	-21	kworker/u4:0+events_unbound	07:50:02	1
4018477	99	54	37,4	cyclictest	4170571	-21	kworker/u4:2+events_unbound	11:29:08	1
4018476	99	54	48,5	cyclictest	4023551	-21	kworker/u4:15+events_unbound	08:30:02	0
4018476	99	54	32,7	cyclictest	17	1	rcu_preempt	12:20:27	0
4018476	99	53	46,5	cyclictest	3806152	-21	kworker/u4:6+events_unbound	08:20:01	0
4018476	99	53	46,5	cyclictest	3806152	-21	kworker/u4:6+events_unbound	08:20:01	0
4018476	99	53	45,6	cyclictest	1	-21	systemd	11:04:02	0
4018477	99	52	46,4	cyclictest	4036416	-21	apt-key	08:20:01	1
4018477	99	52	46,4	cyclictest	4036416	-21	apt-key	08:20:00	1
4018477	99	52	44,6	cyclictest	3803076	-21	kworker/u4:0+events_unbound	08:28:31	1
4018477	99	52	43,6	cyclictest	53	-21	kswapd0	10:40:01	1
4018477	99	52	42,6	cyclictest	0	-21	swapper/1	08:10:22	1
4018477	99	52	36,5	cyclictest	4087285	-21	kworker/u4:1+events_unbound	09:58:47	1
4018476	99	52	36,14	cyclictest	4084759	-21	munin-run	09:50:01	0
4018476	99	52	29,17	cyclictest	256	50	irq/23-42890000.ethernet	08:20:06	0
4018477	99	51	44,5	cyclictest	4071692	-21	/usr/sbin/munin	09:35:11	1
4018477	99	51	42,7	cyclictest	3803076	-21	kworker/u4:0+events_unbound	07:33:21	1
4018476	99	51	45,5	cyclictest	4061047	-21	kworker/u4:7+events_unbound	09:40:59	0
4018476	99	51	44,5	cyclictest	4135591	-21	kworker/u4:2+events_unbound	10:52:41	0
4018476	99	51	43,6	cyclictest	4144482	-21	kworker/u4:10+events_unbound	11:16:00	0
4018476	99	51	43,6	cyclictest	4031711	-21	fschecks_count	08:00:19	0
4018477	99	50	42,5	cyclictest	4128982	-21	aten_r7power_po	10:40:17	1
4018477	99	50	40,7	cyclictest	4150390	-21	awk	11:05:00	1
4018476	99	50	43,5	cyclictest	4113508	-21	kworker/u4:19+events_unbound	10:21:59	0
4018476	99	50	43,5	cyclictest	4026090	-21	kworker/u4:10+events_unbound	09:00:04	0
4018476	99	50	37,10	cyclictest	35720	-21	ssh	12:35:17	0
4018477	99	49	40,7	cyclictest	4036819	-21	df_abs	08:20:20	1
4018477	99	49	39,7	cyclictest	0	-21	swapper/1	11:10:11	1
4018476	99	49	42,5	cyclictest	4059117	-21	ntpq	09:20:25	0
4018476	99	49	42,5	cyclictest	4042770	-21	unixbench_singl	08:40:37	0
4018476	99	49	42,5	cyclictest	4042770	-21	unixbench_singl	08:40:37	0
4018476	99	49	42,5	cyclictest	4023551	-21	kworker/u4:15+events_unbound	08:25:03	0
4018476	99	49	41,6	cyclictest	4032491	-21	kworker/u4:17+events_unbound	09:08:59	0
4018476	99	49	2,33	cyclictest	14326	-21	ssh	12:10:28	0
4018477	99	48	39,7	cyclictest	19785	-21	kworker/u4:11+events_unbound	12:17:00	1
4018477	99	48	38,7	cyclictest	4159494	-21	aten_r7power_cu	11:15:16	1
4018476	99	48	41,5	cyclictest	31512	-21	/usr/sbin/munin	12:30:20	0
4018476	99	48	40,6	cyclictest	5107	-21	/usr/sbin/munin	12:00:17	0
4018476	99	48	40,6	cyclictest	4170572	-21	kworker/u4:3+events_unbound	11:37:23	0
4018476	99	48	40,6	cyclictest	4151868	-21	/usr/sbin/munin	11:05:38	0
4018476	99	48	40,6	cyclictest	4019698	-21	kworker/u4:4+events_unbound	07:21:03	0
4018476	99	48	40,6	cyclictest	4018407	-21	kworker/u4:1+events_unbound	07:10:04	0
4018476	99	48	40,5	cyclictest	4067987	-21	ntpq	09:30:25	0
4018476	99	48	32,6	cyclictest	7113	-21	kworker/u4:5+events_unbound	12:17:21	0
4018477	99	47	39,5	cyclictest	0	-21	swapper/1	10:20:25	1
4018477	99	47	38,7	cyclictest	4154759	-21	munin-plugin-st	11:10:01	1
4018476	99	47	41,5	cyclictest	4026090	-21	kworker/u4:10+events_unbound	07:40:03	0
4018476	99	47	39,6	cyclictest	4172725	-21	/usr/sbin/munin	11:30:18	0
4018476	99	47	34,10	cyclictest	4023572	-21	kworker/u4:15	07:30:01	0
4018477	99	46	40,4	cyclictest	5232	-21	fschecks_time	12:00:20	1
4018477	99	46	40,4	cyclictest	4103297	-21	gltestperf	10:10:30	1
4018477	99	46	39,5	cyclictest	7111	-21	kworker/u4:0+events_unbound	12:14:13	1
4018477	99	46	38,6	cyclictest	4094142	-21	df_abs	10:00:17	1
4018477	99	46	38,6	cyclictest	4021945	-21	sendmail_mailqu	07:20:35	1
4018476	99	46	40,5	cyclictest	4087284	-21	kworker/u4:0+events_unbound	10:20:01	0
4018476	99	46	40,4	cyclictest	4156126	-21	cat	11:10:39	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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