OSADL QA Farm on Real-time of Mainline Linux

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

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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 highest latencies:

System rack7slot2.osadl.org (updated Mon Feb 09, 2026 12:44:08)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
794724	99	100	92,5	cyclictest	782319	-21	kworker/u4:3+events_unbound	09:15:36	0
794724	99	99	57,37	cyclictest	0	-21	swapper/0	11:20:33	0
794724	99	85	77,6	cyclictest	892721	-21	kworker/u4:2+events_unbound	10:30:42	0
794726	99	84	39,28	cyclictest	794722	-21	cyclictest	10:10:33	1
794724	99	84	13,60	cyclictest	536	-21	rs:main		0
794724	99	82	74,5	cyclictest	804788	-21	kworker/u4:11+events_unbound	08:40:31	0
794724	99	79	71,5	cyclictest	973262	-21	ssh	12:00:13	0
794724	99	78	68,7	cyclictest	868028	-21	ssh	09:59:24	0
794724	99	75	67,5	cyclictest	770371	-21	kworker/u4:6+events_unbound	09:10:35	0
794724	99	73	66,5	cyclictest	770371	-21	kworker/u4:6+events_unbound	08:20:02	0
794724	99	73	60,9	cyclictest	54	-21	kswapd0	10:20:08	0
794724	99	71	62,7	cyclictest	770371	-21	kworker/u4:6+events_unbound	09:00:33	0
794724	99	71	59,10	cyclictest	875660	-21	kworker/u4:21+events_unbound	10:17:01	0
794726	99	70	18,30	cyclictest	0	-21	swapper/1	11:50:02	1
794724	99	70	61,6	cyclictest	966605	-21	kworker/u4:9+events_unbound	11:55:58	0
794726	99	68	60,6	cyclictest	1003622	-21	fschecks_count	12:35:20	1
794724	99	68	59,6	cyclictest	875657	-21	kworker/u4:18+events_unbound	10:25:40	0
794724	99	68	56,9	cyclictest	819510	-21	sshd	08:45:31	0
794726	99	67	32,33	cyclictest	926393	-21	ssh	11:05:32	1
794724	99	67	57,7	cyclictest	838723	-21	/usr/sbin/munin	09:25:37	0
794724	99	66	52,9	cyclictest	912512	-21	aten2__	10:50:16	0
794724	99	66	52,9	cyclictest	912512	-21	aten2__	10:50:16	0
794726	99	65	33,29	cyclictest	828716	-21	ssh	09:15:02	1
794726	99	65	33,28	cyclictest	0	-21	swapper/1	12:10:26	1
794724	99	65	55,7	cyclictest	955780	-21	ssh	11:40:01	0
794724	99	65	55,7	cyclictest	853221	-21	kworker/u4:1+events_unbound	10:05:39	0
794726	99	64	5,54	cyclictest	851026	-21	apt-get	09:40:15	1
794724	99	64	50,10	cyclictest	54	-21	kswapd0	11:40:09	0
794726	99	63	52,8	cyclictest	812355	-21	kworker/u4:1+events_unbound	08:55:35	1
794726	99	63	31,30	cyclictest	908422	-21	fschecks_count	10:45:19	1
794726	99	62	4,52	cyclictest	873789	-21	ssh	10:05:26	1
794726	99	62	33,26	cyclictest	0	-21	swapper/1	11:15:37	1
794726	99	62	30,29	cyclictest	949673	-21	kworker/u4:0-rpciod	11:50:25	1
794726	99	62	17,42	cyclictest	0	-21	swapper/1	09:55:12	1
794724	99	62	54,6	cyclictest	809835	-21	kworker/u4:7+events_unbound	08:35:01	0
794726	99	61	4,52	cyclictest	917735	-21	ssh	10:55:34	1
794726	99	61	30,28	cyclictest	930907	-21	sendmail_mailqu	11:10:36	1
794726	99	61	28,29	cyclictest	0	-21	swapper/1	11:35:22	1
794724	99	61	54,5	cyclictest	984109	-21	kworker/u4:10+events_unbound	12:26:00	0
794726	99	60	55,3	cyclictest	782319	-21	kworker/u4:3+events_unbound	08:15:24	1
794726	99	60	4,51	cyclictest	938656	-21	apt-get	11:20:13	1
794726	99	60	29,28	cyclictest	0	-21	swapper/1	09:15:20	1
794726	99	60	26,31	cyclictest	885971	-21	latency_hist	10:20:01	1
794726	99	60	1,14	cyclictest	943736	-21	ntpq	11:25:30	1
794724	99	60	52,5	cyclictest	897193	-21	kworker/u4:6+events_unbound	10:36:34	0
794724	99	60	49,8	cyclictest	909503	-21	sshd	10:45:47	0
794726	99	59	34,23	cyclictest	1003015	-21	idleruntime-cro	12:35:00	1
794726	99	59	29,26	cyclictest	0	-21	swapper/1	11:00:36	1
794726	99	59	27,30	cyclictest	0	-21	swapper/1	11:40:26	1
794726	99	59	26,28	cyclictest	0	-21	swapper/1	08:25:17	1
794726	99	59	2,18	cyclictest	978398	-21	ssh	12:05:33	1
794724	99	59	48,7	cyclictest	925664	-21	aten2__	11:05:18	0
794724	99	59	47,8	cyclictest	869315	-21	/usr/sbin/munin	10:00:26	0
794726	99	58	4,49	cyclictest	842634	-21	ssh	09:30:22	1
794726	99	58	3,7	cyclictest	847311	-21	ntpq	09:35:27	1
794726	99	58	3,51	cyclictest	834023	-21	ssh	09:20:26	1
794726	99	58	33,22	cyclictest	797918	-21	kernelversion	07:20:23	1
794726	99	58	32,24	cyclictest	0	-21	swapper/1	10:25:20	1
794726	99	58	30,25	cyclictest	998833	-21	latency_hist	12:30:01	1
794726	99	58	27,28	cyclictest	0	-21	swapper/1	10:35:29	1
794726	99	58	17,38	cyclictest	855502	-21	ssh	09:45:15	1
794724	99	58	52,4	cyclictest	797203	-21	kworker/u4:10+events_unbound	07:45:01	0
794724	99	58	49,5	cyclictest	821281	-21	kworker/u4:4+xprtiod	08:55:10	0
794724	99	58	48,8	cyclictest	979760	-21	kworker/u4:8+events_unbound	12:10:59	0
794726	99	57	3,6	cyclictest	968900	-21	apt-get	11:55:11	1
794726	99	57	29,26	cyclictest	901595	-21	kworker/u4:1-rpciod	10:40:23	1
794726	99	57	2,7	cyclictest	818175	-21	ntpq	08:40:28	1
794726	99	57	24,30	cyclictest	0	-21	swapper/1	10:00:26	1
794724	99	57	49,6	cyclictest	897192	-21	kworker/u4:5+events_unbound	10:55:49	0
794724	99	57	46,5	cyclictest	988486	-21	kworker/u4:6+events_unbound	12:20:59	0
794724	99	57	43,11	cyclictest	855682	-21	cpu	09:45:17	0
794726	99	56	4,7	cyclictest	816893	-21	ntpq	08:35:27	1
794726	99	56	4,6	cyclictest	796709	-21	ntpq	07:15:25	1
794726	99	56	3,10	cyclictest	820766	-21	ntpq	08:50:28	1
794726	99	56	2,8	cyclictest	986964	-21	ssh	12:15:32	1
794726	99	56	28,25	cyclictest	0	-21	swapper/1	09:25:25	1
794726	99	56	25,29	cyclictest	860377	-21	gltestperf	09:50:20	1
794726	99	56	25,29	cyclictest	824125	-21	diskmemload	12:00:14	1
794726	99	56	2,50	cyclictest	914937	-21	ssh	10:52:29	1
794726	99	56	2,50	cyclictest	914937	-21	ssh	10:52:28	1
794726	99	56	22,30	cyclictest	0	-21	swapper/1	10:20:29	1
794726	99	56	2,13	cyclictest	809384	-21	ntpq	08:05:30	1
794726	99	56	18,34	cyclictest	991178	-21	ssh	12:20:29	1
794726	99	56	16,37	cyclictest	805790	-21	sed	07:50:34	1
794724	99	56	46,7	cyclictest	852137	-21	timerandwakeup	09:40:38	0
794724	99	56	33,20	cyclictest	846904	-21	fschecks_count	09:35:19	0
794726	99	55	3,4	cyclictest	812574	-21	apt-get	08:20:14	1
794726	99	55	28,24	cyclictest	892721	-21	kworker/u4:2-rpciod	10:30:39	1
794726	99	55	1,13	cyclictest	799283	-21	ntpq	07:25:27	1
794724	99	55	44,6	cyclictest	937107	-21	kworker/u4:2-xprtiod	11:30:02	0
794726	99	54	47,5	cyclictest	823514	-21	systemd	09:00:34	1
794726	99	54	46,6	cyclictest	0	-21	swapper/1	08:00:19	1
794726	99	54	4,46	cyclictest	803082	-21	ntpq	07:40:27	1
794726	99	54	2,14	cyclictest	800495	-21	ntpq	07:30:26	1
794726	99	54	2,11	cyclictest	948692	-21	ssh	11:30:45	1
794726	99	54	1,10	cyclictest	810601	-21	sed	08:10:26	1
794724	99	54	42,7	cyclictest	846370	-21	ssh	09:35:01	0
794724	99	54	10,39	cyclictest	0	-21	swapper/0	08:50:10	0
794724	99	53	45,6	cyclictest	797202	-21	kworker/u4:8+events_unbound	07:35:09	0
794726	99	52	2,4	cyclictest	804295	-21	ntpq	07:45:25	1
794726	99	52	23,27	cyclictest	0	-21	swapper/1	07:35:37	1
794726	99	52	1,15	cyclictest	795494	-21	ntpq	07:10:28	1
794726	99	52	1,12	cyclictest	806817	-21	ntpq	07:55:25	1
794724	99	52	38,11	cyclictest	0	-21	swapper/0	10:40:17	0
794726	99	51	2,4	cyclictest	815778	-21	ps	08:30:32	1
794724	99	51	41,7	cyclictest	812767	-21	df	08:20:18	0
794724	99	51	41,7	cyclictest	798519	-21	cut	07:25:00	0
794724	99	51	40,7	cyclictest	875660	-21	kworker/u4:21-rpciod	10:10:33	0
794724	99	51	37,9	cyclictest	0	-21	swapper/0	12:30:20	0
794726	99	50	23,25	cyclictest	824132	-21	munin-run	09:10:00	1
794726	99	50	12,36	cyclictest	819207	-21	basename	08:45:20	1
794724	99	50	5,28	cyclictest	859898	-21	ssh	09:50:12	0
794724	99	49	42,5	cyclictest	987086	-21	ps	12:15:37	0
794724	99	49	29,17	cyclictest	797238	-21	apt	07:20:01	0
794724	99	48	40,6	cyclictest	809177	-21	gltestperf	08:05:21	0
794724	99	48	39,5	cyclictest	949681	-21	kworker/u4:9+events_unbound	11:35:01	0
794724	99	48	37,8	cyclictest	817411	-21	cron	08:40:00	0
794724	99	47	28,16	cyclictest	949680	-21	kworker/u4:8-rpciod	11:46:36	0
794724	99	46	39,5	cyclictest	810574	-21	sshd	08:10:23	0
794724	99	46	38,6	cyclictest	805087	-21	aten_r7power_po	07:50:14	0
794724	99	46	38,5	cyclictest	922544	-21	/usr/sbin/munin	11:00:39	0
794724	99	46	36,6	cyclictest	1000928	-21	kworker/u4:6-rpciod	12:35:32	0
794724	99	46	27,15	cyclictest	0	-21	swapper/0	11:55:01	0
794726	99	45	11,32	cyclictest	794741	-21	sed	07:10:01	1
794724	99	45	37,6	cyclictest	834354	-21	mailstats	09:20:40	0
794724	99	45	35,7	cyclictest	930352	-21	fschecks_time	11:10:21	0
794724	99	44	36,6	cyclictest	814924	-21	munin-run	08:30:00	0
794724	99	44	36,5	cyclictest	808615	-21	idleruntime-cro	08:05:01	0
794724	99	44	31,8	cyclictest	255	50	irq/23-42890000.ethernet	11:20:00	0
794724	99	43	36,4	cyclictest	0	-21	swapper/0	07:55:12	0
794724	99	43	33,7	cyclictest	977594	-21	aten2__	12:05:14	0
794724	99	43	33,6	cyclictest	804914	-21	latency_hist	07:50:02	0
794724	99	42	26,6	cyclictest	798487	-21	kworker/u4:14+events_unbound	07:30:10	0
794724	99	42	23,17	cyclictest	798981	-21	fschecks_time	07:25:17	0
794724	99	40	34,4	cyclictest	824131	-21	ls	09:10:00	0
794724	99	40	31,5	cyclictest	782320	-21	kworker/u4:4-rpciod	07:10:20	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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