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 May 20, 2026 00:44:09)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
376084	99	106	101,3	cyclictest	577051	-21	kworker/u4:2-rpciod	00:27:21	1
376084	99	94	84,7	cyclictest	409715	-21	kworker/u4:3+events_unbound	21:25:54	1
376081	99	88	63,16	cyclictest	524447	-21	kworker/u4:9-nfsiod	23:15:11	0
376084	99	87	74,7	cyclictest	443646	-21	kworker/u4:11+events_unbound	21:56:01	1
376081	99	87	35,42	cyclictest	256	50	irq/23-42890000.ethernet	00:00:07	0
376084	99	83	67,6	cyclictest	443646	-21	kworker/u4:11+events_unbound	22:46:11	1
376084	99	83	67,6	cyclictest	443646	-21	kworker/u4:11+events_unbound	22:46:10	1
376081	99	77	30,6	cyclictest	456917	-21	timerwakeupswit	22:00:44	0
376081	99	76	39,34	cyclictest	500095	-21	systemd	22:46:09	0
376081	99	76	39,34	cyclictest	500095	-21	systemd	22:46:08	0
376081	99	76	35,37	cyclictest	404886	-21	fschecks_count	21:00:18	0
376081	99	76	32,41	cyclictest	379918	-21	apt	19:25:01	0
376081	99	75	39,33	cyclictest	513306	-21	/usr/sbin/munin	23:00:21	0
376084	99	73	66,5	cyclictest	458190	-21	kworker/u4:9+events_unbound	22:31:09	1
376081	99	73	49,13	cyclictest	256	50	irq/23-42890000.ethernet	21:50:07	0
376081	99	73	35,35	cyclictest	398226	-21	aten2__	20:35:14	0
376081	99	72	32,5	cyclictest	385032	-21	idleruntime-cro	19:45:01	0
376084	99	71	64,5	cyclictest	543901	-21	kworker/u4:9+events_unbound	00:01:22	1
376084	99	71	51,7	cyclictest	458190	-21	kworker/u4:9+events_unbound	22:17:45	1
376081	99	71	31,5	cyclictest	0	-21	swapper/0	00:05:17	0
376081	99	71	31,5	cyclictest	0	-21	swapper/0	00:05:16	0
376081	99	71	2,8	cyclictest	0	-21	swapper/0	22:30:08	0
376084	99	70	63,5	cyclictest	392736	-21	kworker/u4:18+events_unbound	20:35:45	1
376081	99	70	34,33	cyclictest	412567	-21	cut	21:15:21	0
376081	99	69	30,7	cyclictest	422996	-21	switchtime	21:25:38	0
376081	99	69	28,9	cyclictest	0	-21	swapper/0	20:25:13	0
376081	99	69	28,34	cyclictest	381160	-21	kworker/u4:4-xprtiod	19:30:02	0
376084	99	68	61,5	cyclictest	414677	-21	kworker/u4:18+events_unbound	21:20:52	1
376081	99	68	7,14	cyclictest	521963	-21	latency_hist	23:10:01	0
376081	99	68	36,28	cyclictest	429535	-21	kworker/u4:5-rpciod	21:35:25	0
376081	99	68	32,32	cyclictest	0	-21	swapper/0	23:45:29	0
376081	99	68	31,6	cyclictest	0	-21	swapper/0	22:25:32	0
376081	99	67	54,7	cyclictest	256	50	irq/23-42890000.ethernet	00:30:09	0
376081	99	67	30,7	cyclictest	0	-21	swapper/0	23:20:29	0
376081	99	67	29,8	cyclictest	436582	-21	aten_r7power_en	21:40:17	0
376081	99	67	19,13	cyclictest	407643	-21	fschecks_count	21:10:19	0
376081	99	66	31,7	cyclictest	386056	-21	timerandwakeup	19:45:36	0
376081	99	66	31,32	cyclictest	0	-21	swapper/0	19:50:22	0
376081	99	65	28,6	cyclictest	0	-21	swapper/0	22:50:21	0
376084	99	64	50,5	cyclictest	414674	-21	kworker/u4:15+events_unbound	22:22:59	1
376081	99	64	33,5	cyclictest	560575	-21	aten_r7power_vo	23:50:15	0
376081	99	64	31,5	cyclictest	0	-21	swapper/0	22:35:22	0
376081	99	64	30,5	cyclictest	589283	-21	aten_r7power_cu	00:20:18	0
376081	99	64	28,5	cyclictest	0	-21	swapper/0	20:30:24	0
376081	99	64	28,4	cyclictest	377313	-21	kworker/u4:15-rpciod	20:00:00	0
376084	99	63	48,8	cyclictest	500916	-21	kworker/u4:8+events_unbound	23:03:58	1
376084	99	63	45,6	cyclictest	543901	-21	kworker/u4:9+events_unbound	23:36:01	1
376081	99	63	53,7	cyclictest	409714	-21	kworker/u4:2+events_unbound	21:45:58	0
376081	99	63	26,7	cyclictest	469808	-21	acpi	22:15:12	0
376084	99	62	5,50	cyclictest	437200	-21	ssh	21:40:27	1
376081	99	62	47,11	cyclictest	417029	-21	ssh	21:20:13	0
376081	99	62	30,6	cyclictest	558349	-21	kworker/u4:6-rpciod	23:55:28	0
376081	99	61	28,6	cyclictest	466227	-21	timerandwakeup	22:10:38	0
376084	99	60	53,5	cyclictest	409715	-21	kworker/u4:3+events_unbound	22:27:01	1
376084	99	60	44,12	cyclictest	565992	-21	ssh	23:55:28	1
376081	99	60	34,14	cyclictest	0	-21	swapper/0	20:10:13	0
376081	99	60	24,6	cyclictest	393028	-21	aten_r7power_po	20:15:15	0
376084	99	59	52,5	cyclictest	379890	-21	kworker/u4:3+events_unbound	19:50:38	1
376084	99	59	51,6	cyclictest	377313	-21	kworker/u4:15+events_unbound	20:05:39	1
376081	99	59	42,12	cyclictest	377329	-21	kworker/u4:2	19:15:01	0
376081	99	59	2,17	cyclictest	546928	-21	ntpq	23:35:28	0
376084	99	58	52,4	cyclictest	476749	-21	kworker/u4:1+events_unbound	22:37:00	1
376084	99	58	45,7	cyclictest	409715	-21	kworker/u4:3+events_unbound	21:48:00	1
376084	99	57	41,5	cyclictest	591765	-21	kworker/u4:37+events_unbound	00:23:44	1
376084	99	56	40,7	cyclictest	409714	-21	kworker/u4:2+events_unbound	21:32:46	1
376084	99	55	47,6	cyclictest	409715	-21	kworker/u4:3+events_unbound	21:16:00	1
376084	99	55	46,6	cyclictest	1073	-21	snmpd	22:06:02	1
376084	99	55	42,5	cyclictest	414674	-21	kworker/u4:15+events_unbound	23:10:59	1
376081	99	55	47,5	cyclictest	580581	-21	mailstats	00:10:39	0
376084	99	54	44,8	cyclictest	0	-21	swapper/1	21:35:14	1
376084	99	53	45,5	cyclictest	541634	-21	/usr/sbin/munin	23:30:17	1
376084	99	52	45,5	cyclictest	376015	-21	kworker/u4:7+events_unbound	19:17:00	1
376084	99	52	44,6	cyclictest	508492	-21	/usr/sbin/munin	22:55:21	1
376084	99	52	43,6	cyclictest	555778	-21	/usr/sbin/munin	23:45:17	1
376084	99	52	37,6	cyclictest	379890	-21	kworker/u4:3+events_unbound	20:15:41	1
376084	99	51	39,7	cyclictest	0	-21	swapper/1	22:10:24	1
376081	99	51	43,5	cyclictest	427916	-21	timerandwakeup	21:30:38	0
376081	99	51	37,10	cyclictest	0	-21	swapper/0	23:25:27	0
376084	99	50	34,7	cyclictest	505789	-21	kworker/u4:12+events_unbound	22:53:09	1
376081	99	50	43,5	cyclictest	407016	-21	awk	21:10:00	0
376081	99	50	39,7	cyclictest	475249	-21	/usr/sbin/munin	22:20:25	0
376081	99	50	28,19	cyclictest	391415	-21	idleruntime-cro	20:10:01	0
376084	99	49	42,5	cyclictest	491181	-21	kworker/u4:0+events_unbound	22:42:00	1
376084	99	49	35,6	cyclictest	591764	-21	kworker/u4:36+events_unbound	00:37:45	1
376084	99	49	34,6	cyclictest	383707	-21	kworker/u4:4+events_unbound	21:10:59	1
376084	99	49	32,5	cyclictest	388814	-21	kworker/u4:13+events_unbound	21:05:01	1
376081	99	49	33,14	cyclictest	460669	-21	df	22:05:19	0
376084	99	48	40,5	cyclictest	389775	-21	sendmail_mailqu	20:00:36	1
376084	99	48	38,7	cyclictest	527212	-21	aten_r7power_po	23:15:22	1
376084	99	48	29,11	cyclictest	446951	-21	ssh	21:50:32	1
376081	99	48	38,7	cyclictest	452184	-21	/usr/sbin/munin	21:55:39	0
376081	99	48	38,7	cyclictest	0	-21	swapper/0	23:05:34	0
376084	99	47	40,5	cyclictest	443646	-21	kworker/u4:11+events_unbound	23:06:01	1
376084	99	47	40,5	cyclictest	443646	-21	kworker/u4:11+events_unbound	23:06:01	1
376084	99	47	39,6	cyclictest	553544	-21	kworker/u4:17+events_unbound	23:55:00	1
376084	99	47	39,6	cyclictest	536290	-21	idleruntime-cro	23:25:00	1
376084	99	47	34,10	cyclictest	579633	-21	aten_r7power_cu	00:10:18	1
376084	99	47	29,6	cyclictest	577057	-21	kworker/u4:10+events_unbound	00:15:47	1
376081	99	47	39,5	cyclictest	376079	-21	cyclictest	00:18:40	0
376084	99	46	37,6	cyclictest	395031	-21	proc_pri	20:20:47	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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