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 Sun Apr 19, 2026 12:44:09)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
4148620	99	107	94,9	cyclictest	4159158	-21	/usr/sbin/munin	07:50:12	1
4148620	99	90	39,40	cyclictest	36987	-21	ssh	10:07:17	1
4148619	99	88	40,13	cyclictest	0	-21	swapper/0	11:35:26	0
4148619	99	87	75,8	cyclictest	154496	-21	kworker/u4:8+events_unbound	12:25:33	0
4148619	99	82	73,7	cyclictest	136792	-21	kworker/u4:16+events_unbound	12:05:30	0
4148620	99	74	66,6	cyclictest	154494	-21	kworker/u4:6+events_unbound	12:35:34	1
4148619	99	71	63,6	cyclictest	4170561	-21	kworker/u4:1+events_unbound	09:05:01	0
4148620	99	69	36,30	cyclictest	0	-21	swapper/1	12:10:30	1
4148620	99	67	27,37	cyclictest	0	-21	swapper/1	09:50:27	1
4148620	99	67	1,15	cyclictest	92197	-21	ps	11:10:37	1
4148620	99	65	34,29	cyclictest	78235	-21	aten2__	10:55:14	1
4148620	99	65	31,31	cyclictest	0	-21	swapper/1	11:00:30	1
4148620	99	65	22,40	cyclictest	0	-21	swapper/1	09:35:26	1
4148620	99	65	1,22	cyclictest	100942	-21	ps	11:20:41	1
4148619	99	65	55,8	cyclictest	115321	-21	kworker/u4:4+events_unbound	11:45:24	0
4148619	99	65	52,9	cyclictest	62420	-21	ssh	10:36:08	0
4148620	99	64	34,27	cyclictest	0	-21	swapper/1	09:24:10	1
4148620	99	63	4,12	cyclictest	86907	-21	apt-get	11:05:11	1
4148619	99	63	50,8	cyclictest	4175713	-21	munin-plugin-st	08:55:00	0
4148620	99	62	52,7	cyclictest	53	-21	kswapd0	12:30:01	1
4148620	99	62	34,25	cyclictest	0	-21	swapper/1	10:05:01	1
4148620	99	62	32,27	cyclictest	0	-21	swapper/1	09:25:35	1
4148620	99	62	26,33	cyclictest	0	-21	swapper/1	10:30:33	1
4148620	99	62	2,13	cyclictest	139060	-21	apt-get	12:05:11	1
4148619	99	62	45,13	cyclictest	17411	-21	fschecks_count	09:45:23	0
4148620	99	61	37,21	cyclictest	134819	-21	aten_r7power_cu	12:00:16	1
4148620	99	61	3,22	cyclictest	96525	-21	ssh	11:15:43	1
4148620	99	61	32,27	cyclictest	4180273	-21	/usr/sbin/munin	09:10:19	1
4148620	99	61	2,9	cyclictest	61470	-21	ntpq	10:35:26	1
4148620	99	61	28,30	cyclictest	0	-21	swapper/1	11:35:30	1
4148620	99	61	27,31	cyclictest	0	-21	swapper/1	12:30:13	1
4148620	99	61	27,30	cyclictest	0	-21	swapper/1	12:20:26	1
4148620	99	61	23,35	cyclictest	53	-21	kswapd0	11:55:33	1
4148620	99	61	2,15	cyclictest	4163714	-21	ntpq	08:05:31	1
4148619	99	61	48,9	cyclictest	147460	-21	cron	12:15:00	0
4148619	99	61	38,20	cyclictest	112715	-21	idleruntime-cro	11:35:00	0
4148620	99	60	51,7	cyclictest	4165450	-21	systemd	08:14:50	1
4148620	99	60	4,9	cyclictest	12616	-21	apt-get	09:40:14	1
4148620	99	60	29,29	cyclictest	71788	-21	kworker/u4:1-rpciod	10:50:19	1
4148620	99	60	22,35	cyclictest	4153450	-21	sed	07:25:35	1
4148620	99	59	33,23	cyclictest	106490	-21	kworker/u4:10-rpciod	11:30:27	1
4148620	99	59	26,30	cyclictest	0	-21	swapper/1	11:25:22	1
4148620	99	59	26,30	cyclictest	0	-21	swapper/1	11:25:22	1
4148620	99	58	4,19	cyclictest	25849	-21	ssh	09:55:13	1
4148620	99	58	3,12	cyclictest	126831	-21	ntpq	11:50:32	1
4148620	99	58	3,10	cyclictest	4176460	-21	ntpq	08:55:28	1
4148620	99	58	28,27	cyclictest	0	-21	swapper/1	10:15:23	1
4148620	99	58	24,31	cyclictest	4156328	-21	latency_hist	07:40:02	1
4148619	99	58	50,5	cyclictest	36348	-21	kworker/u4:3+events_unbound	10:06:42	0
4148619	99	58	48,7	cyclictest	27054	-21	unixbench-2d	09:55:40	0
4148620	99	57	33,22	cyclictest	4133422	-21	kworker/u4:12+rpciod	07:20:18	1
4148620	99	57	28,26	cyclictest	0	-21	swapper/1	11:40:30	1
4148620	99	57	28,26	cyclictest	0	-21	swapper/1	09:10:01	1
4148620	99	57	27,27	cyclictest	0	-21	swapper/1	11:45:36	1
4148620	99	57	27,27	cyclictest	0	-21	swapper/1	10:45:33	1
4148620	99	57	22,33	cyclictest	65947	-21	ssh	10:40:30	1
4148619	99	57	48,7	cyclictest	4164173	-21	kworker/u4:18+events_unbound	08:09:50	0
4148619	99	57	48,6	cyclictest	106491	-21	kworker/u4:11+events_unbound	11:54:42	0
4148619	99	57	45,8	cyclictest	4180149	-21	grep	09:10:18	0
4148619	99	57	34,19	cyclictest	0	-21	swapper/0	11:10:00	0
4148620	99	56	3,16	cyclictest	4375	-21	ssh	09:30:25	1
4148620	99	56	26,28	cyclictest	0	-21	swapper/1	10:25:38	1
4148620	99	56	24,30	cyclictest	4166740	-21	cron	08:20:01	1
4148620	99	56	2,14	cyclictest	148560	-21	ntpq	12:15:32	1
4148620	99	56	21,33	cyclictest	20482	-21	sh	09:48:57	1
4148620	99	56	21,32	cyclictest	0	-21	swapper/1	07:30:19	1
4148620	99	55	23,29	cyclictest	0	-21	swapper/1	10:20:31	1
4148620	99	55	11,9	cyclictest	1066	-21	snmpd	07:44:01	1
4148619	99	55	46,6	cyclictest	4158891	-21	kworker/u4:11+events_unbound	07:49:50	0
4148620	99	54	27,24	cyclictest	4160716	-21	fschecks_count	07:55:19	1
4148620	99	54	2,21	cyclictest	4185208	-21	ssh	09:15:35	1
4148620	99	54	2,21	cyclictest	4185208	-21	ssh	09:15:34	1
4148620	99	54	21,30	cyclictest	4174165	-21	switchtime	08:45:39	1
4148619	99	54	48,4	cyclictest	4149836	-21	kworker/u4:2+xprtiod	07:50:13	0
4148619	99	54	44,7	cyclictest	4169755	-21	fschecks_count	08:30:21	0
4148619	99	54	44,6	cyclictest	28079	-21	kworker/u4:7-rpciod	10:04:05	0
4148619	99	54	4,25	cyclictest	138885	-21	ssh	12:05:01	0
4148619	99	54	39,12	cyclictest	117717	-21	fschecks_count	11:40:19	0
4148619	99	54	34,17	cyclictest	4166772	-21	sendmail	08:20:01	0
4148620	99	53	25,25	cyclictest	0	-21	swapper/1	07:10:37	1
4148620	99	53	24,27	cyclictest	0	-21	swapper/1	10:10:18	1
4148620	99	53	23,28	cyclictest	4158301	-21	kernelversion	07:45:21	1
4148620	99	53	23,26	cyclictest	0	-21	swapper/1	08:55:01	1
4148619	99	53	43,6	cyclictest	4160773	-21	fschecks_time	07:55:19	0
4148619	99	53	42,8	cyclictest	169202	-21	ssh	12:40:00	0
4148620	99	52	2,13	cyclictest	4150611	-21	ntpq	07:15:24	1
4148619	99	52	45,4	cyclictest	97034	-21	users	11:15:52	0
4148619	99	52	4,39	cyclictest	104987	-21	ssh	11:25:26	0
4148619	99	52	4,39	cyclictest	104987	-21	ssh	11:25:26	0
4148619	99	52	43,6	cyclictest	4151109	-21	kworker/u4:10+events_unbound	07:40:02	0
4148619	99	52	42,7	cyclictest	4192958	-21	latency_hist	09:25:01	0
4148619	99	52	30,9	cyclictest	15	1	ktimers/0	10:10:26	0
4148620	99	51	2,13	cyclictest	4177873	-21	ps	09:00:36	1
4148619	99	51	42,6	cyclictest	13865	-21	unixbench_multi	09:40:39	0
4148619	99	51	41,7	cyclictest	70776	-21	sh	10:45:40	0
4148619	99	51	19,28	cyclictest	256	50	irq/23-42890000.ethernet	07:40:12	0
4148620	99	50	41,6	cyclictest	4158884	-21	kworker/u4:4-rpciod	08:35:00	1
4148620	99	50	18,29	cyclictest	0	-21	swapper/1	08:25:39	1
4148620	99	50	15,32	cyclictest	0	-21	swapper/1	07:10:01	1
4148620	99	50	1,13	cyclictest	4167562	-21	ntpq	08:20:30	1
4148619	99	50	39,8	cyclictest	324	-21	switchtime	09:25:37	0
4148619	99	50	29,19	cyclictest	0	-21	swapper/0	10:35:02	0
4148620	99	49	16,5	cyclictest	4162814	-21	tail	08:00:44	1
4148620	99	49	13,10	cyclictest	4171418	-21	ntp_states	08:35:35	1
4148619	99	49	41,6	cyclictest	80624	-21	kworker/u4:8+events_unbound	11:00:12	0
4148619	99	49	40,7	cyclictest	100416	-21	fschecks_time	11:20:24	0
4148619	99	49	40,6	cyclictest	91243	-21	apt-get	11:10:13	0
4148619	99	49	38,5	cyclictest	0	-21	swapper/0	12:20:31	0
4148619	99	49	2,16	cyclictest	47771	-21	ssh	10:20:14	0
4148619	99	48	41,5	cyclictest	158861	-21	kworker/u4:3+events_unbound	12:30:17	0
4148619	99	48	39,6	cyclictest	9161	-21	mailstats	09:35:37	0
4148619	99	48	36,7	cyclictest	0	-21	swapper/0	09:00:01	0
4148619	99	48	32,12	cyclictest	44127	-21	ssh	10:15:29	0
4148619	99	48	24,20	cyclictest	0	-21	swapper/0	10:25:18	0
4148619	99	47	39,6	cyclictest	4599	-21	ntpq	09:30:36	0
4148619	99	47	37,8	cyclictest	148576	-21	/usr/sbin/munin	12:15:32	0
4148619	99	47	35,7	cyclictest	0	-21	swapper/0	09:50:33	0
4148620	99	45	13,6	cyclictest	0	-21	swapper/1	08:40:14	1
4148619	99	45	37,5	cyclictest	4164642	-21	fschecks_count	08:10:19	0
4148619	99	45	37,5	cyclictest	4152126	-21	cat	07:20:35	0
4148619	99	45	36,5	cyclictest	4173182	-21	awk	08:45:00	0
4148619	99	45	35,7	cyclictest	0	-21	swapper/0	09:15:18	0
4148619	99	45	35,7	cyclictest	0	-21	swapper/0	09:15:18	0
4148619	99	45	32,7	cyclictest	0	-21	swapper/0	10:42:45	0
4148619	99	45	27,15	cyclictest	0	-21	swapper/0	07:30:01	0
4148619	99	45	24,18	cyclictest	0	-21	swapper/0	11:55:36	0
4148619	99	44	35,6	cyclictest	4136020	-21	kworker/u4:17-rpciod	07:35:01	0
4148619	99	44	35,6	cyclictest	1062	-21	lldpd	08:22:52	0
4148619	99	44	34,7	cyclictest	4169259	-21	unixbench_singl	08:25:41	0
4148619	99	44	34,6	cyclictest	0	-21	swapper/0	07:20:00	0
4148619	99	43	3,18	cyclictest	73861	-21	ssh	10:50:12	0
4148619	99	43	10,28	cyclictest	21	1	irq_work/0	08:00:12	0
4148619	99	42	35,5	cyclictest	4178733	-21	fschecks_time	09:05:19	0
4148619	99	42	33,5	cyclictest	67381	-21	kworker/u4:11-rpciod	10:55:33	0
4148619	99	40	31,6	cyclictest	4170782	-21	aten2__	08:35:16	0
4148619	99	40	31,5	cyclictest	0	-21	swapper/0	07:10:18	0
4148619	99	40	22,16	cyclictest	4174175	-21	find	08:45:39	0
4148619	99	39	30,6	cyclictest	0	-21	swapper/0	07:10:01	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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