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 highest latencies:

System rack7slot2.osadl.org (updated Wed Sep 02, 2026 12:44:10)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
706194	99	96	68,20	cyclictest	53	-21	kswapd0	09:40:22	0
706194	99	96	68,20	cyclictest	53	-21	kswapd0	09:40:21	0
706195	99	93	75,6	cyclictest	797921	-21	kworker/u4:10+events_unbound	10:24:08	1
706195	99	92	83,7	cyclictest	902064	-21	kworker/u4:2+events_unbound	12:14:27	1
706195	99	90	80,6	cyclictest	744313	-21	kworker/u4:3+events_unbound	09:33:57	1
706195	99	89	81,5	cyclictest	902063	-21	kworker/u4:0+events_unbound	12:19:28	1
706195	99	81	74,5	cyclictest	883992	-21	kworker/u4:3+events_unbound	12:29:30	1
706195	99	81	73,6	cyclictest	710086	-21	kworker/u4:5+events_unbound	07:28:32	1
706195	99	81	64,6	cyclictest	748928	-21	kworker/u4:4+events_unbound	09:53:58	1
706194	99	81	73,6	cyclictest	724125	-21	kworker/u4:15+events_unbound	08:23:42	0
706194	99	80	44,27	cyclictest	53	-21	kswapd0	10:20:13	0
706195	99	77	69,6	cyclictest	757480	-21	kworker/u4:9+events_unbound	09:38:55	1
706195	99	77	60,6	cyclictest	871015	-21	kworker/u4:6+events_unbound	12:04:27	1
706194	99	77	3,60	cyclictest	864869	-21	ssh	11:30:34	0
706194	99	77	3,60	cyclictest	864869	-21	ssh	11:30:33	0
706194	99	76	70,4	cyclictest	0	-21	swapper/0	10:10:29	0
706194	99	73	3,33	cyclictest	833039	-21	ntpq	10:55:33	0
706194	99	72	58,9	cyclictest	855015	-21	wget	11:20:15	0
706194	99	70	63,5	cyclictest	707413	-21	kworker/u4:2+events_unbound	07:23:32	0
706194	99	70	63,5	cyclictest	707413	-21	kworker/u4:2+events_unbound	07:23:31	0
706194	99	70	54,10	cyclictest	53	-21	kswapd0	12:10:08	0
706194	99	70	40,24	cyclictest	53	-21	kswapd0	11:35:08	0
706195	99	67	60,5	cyclictest	753562	-21	kworker/u4:6+events_unbound	09:28:56	1
706195	99	67	59,6	cyclictest	888533	-21	kworker/u4:9+events_unbound	11:59:26	1
706195	99	64	55,6	cyclictest	708701	-21	kworker/u4:13+events_unbound	08:28:43	1
706195	99	62	53,7	cyclictest	784994	-21	kworker/u4:9+events_unbound	10:15:02	1
706194	99	62	50,9	cyclictest	53	-21	kswapd0	11:15:01	0
706195	99	61	54,5	cyclictest	825478	-21	kworker/u4:4+events_unbound	10:54:12	1
706195	99	61	54,5	cyclictest	825478	-21	kworker/u4:4+events_unbound	10:54:12	1
706195	99	60	53,5	cyclictest	883993	-21	kworker/u4:4+events_unbound	12:09:28	1
706194	99	60	51,6	cyclictest	883994	-21	kworker/u4:8+events_unbound	11:54:23	0
706195	99	59	51,6	cyclictest	710086	-21	kworker/u4:5+events_unbound	08:03:37	1
706194	99	57	48,7	cyclictest	711363	-21	systemd	07:28:32	0
706195	99	56	39,13	cyclictest	0	-21	swapper/1	10:05:28	1
706194	99	56	49,5	cyclictest	789540	-21	kworker/u4:3+events_unbound	10:34:10	0
706194	99	56	3,42	cyclictest	905004	-21	ssh	12:15:32	0
706194	99	55	45,7	cyclictest	756675	-21	/usr/sbin/munin	09:30:39	0
706195	99	54	46,5	cyclictest	707328	-21	unixbench_multi	07:10:38	1
706195	99	54	45,6	cyclictest	906627	-21	kworker/u4:6+events_unbound	12:24:29	1
706195	99	54	41,8	cyclictest	733179	-21	kworker/u4:11	08:55:00	1
706195	99	54	34,14	cyclictest	809214	-21	modprobe	10:30:00	1
706194	99	54	44,8	cyclictest	716475	-21	systemd	07:48:36	0
706194	99	53	44,6	cyclictest	859474	-21	apt-get	11:25:14	0
706194	99	53	34,16	cyclictest	256	50	irq/23-42890000.ethernet	11:05:33	0
706195	99	52	38,10	cyclictest	841412	-21	aten_r7power_en	11:05:15	1
706194	99	52	43,6	cyclictest	789541	-21	kworker/u4:5+events_unbound	10:09:03	0
706195	99	51	36,11	cyclictest	37	-21	kcompactd0	11:45:36	1
706194	99	51	43,6	cyclictest	906630	-21	kworker/u4:12+events_unbound	12:30:03	0
706194	99	51	42,7	cyclictest	838713	-21	kworker/u4:5+events_unbound	11:02:15	0
706194	99	51	39,10	cyclictest	760794	-21	netstat	09:35:24	0
706195	99	50	41,6	cyclictest	720846	-21	fschecks_time	08:05:20	1
706195	99	50	39,7	cyclictest	0	-21	swapper/1	11:15:32	1
706194	99	50	32,16	cyclictest	750746	-21	sh	09:25:01	0
706195	99	49	42,5	cyclictest	791515	-21	apt-key	10:10:02	1
706195	99	49	39,6	cyclictest	0	-21	swapper/1	10:30:06	1
706195	99	49	29,14	cyclictest	0	-21	swapper/1	12:30:41	1
706194	99	49	42,5	cyclictest	895427	-21	cut	12:05:16	0
706194	99	49	42,5	cyclictest	873824	-21	sh	11:40:30	0
706194	99	49	42,5	cyclictest	752011	-21	proc_pri	09:25:38	0
706194	99	49	41,6	cyclictest	818913	-21	df_abs	10:40:22	0
706194	99	49	41,5	cyclictest	714518	-21	gltestperf	07:40:20	0
706195	99	48	5,33	cyclictest	819357	-21	ssh	10:40:32	1
706195	99	48	42,4	cyclictest	875590	-21	kworker/u4:1+events_unbound	11:43:58	1
706195	99	48	41,5	cyclictest	855096	-21	aten_r7power_po	11:20:17	1
706195	99	48	41,5	cyclictest	837124	-21	fschecks_time	11:00:19	1
706195	99	48	40,6	cyclictest	832302	-21	aten_r7power_cu	10:55:16	1
706195	99	48	40,6	cyclictest	712558	-21	unixbench_multi	07:30:39	1
706195	99	48	40,5	cyclictest	748928	-21	kworker/u4:4-events_freezable_power_	09:45:29	1
706195	99	48	38,7	cyclictest	724182	-21	sendmail	08:20:00	1
706194	99	48	38,6	cyclictest	769717	-21	expr	09:45:24	0
706194	99	48	36,8	cyclictest	0	-21	swapper/0	11:45:31	0
706194	99	48	32,9	cyclictest	730525	-21	kworker/u4:12-xprtiod	09:55:11	0
706194	99	48	19,23	cyclictest	256	50	irq/23-42890000.ethernet	10:25:13	0
706195	99	47	41,4	cyclictest	845835	-21	apt-get	11:10:13	1
706195	99	47	39,6	cyclictest	747847	-21	sed	09:20:45	1
706195	99	47	39,6	cyclictest	722841	-21	kworker/u4:2+events_unbound	08:33:43	1
706195	99	47	39,5	cyclictest	737516	-21	/usr/sbin/munin	09:10:17	1
706195	99	47	37,7	cyclictest	0	-21	swapper/1	11:30:25	1
706195	99	47	37,7	cyclictest	0	-21	swapper/1	11:30:25	1
706195	99	47	36,9	cyclictest	1069	-21	lldpd	11:25:27	1
706195	99	47	36,8	cyclictest	0	-21	swapper/1	10:00:34	1
706195	99	47	30,13	cyclictest	0	-21	swapper/1	09:15:32	1
706194	99	47	41,4	cyclictest	850529	-21	aten_r7power_po	11:15:18	0
706194	99	47	40,5	cyclictest	886961	-21	if_eth0	11:55:21	0
706194	99	47	40,5	cyclictest	734384	-21	unixbench_singl	08:55:40	0
706194	99	47	38,6	cyclictest	827700	-21	aten2__	10:50:16	0
706194	99	47	38,6	cyclictest	827700	-21	aten2__	10:50:15	0
706194	99	47	37,8	cyclictest	891510	-21	/usr/sbin/munin	12:00:22	0
706195	99	46	40,4	cyclictest	868641	-21	aten2__	11:35:20	1
706195	99	46	39,5	cyclictest	815106	-21	/usr/sbin/munin	10:35:38	1
706195	99	46	38,5	cyclictest	721910	-21	cpu	08:10:17	1
706195	99	46	38,5	cyclictest	717762	-21	kworker/u4:8	07:55:00	1
706195	99	46	36,7	cyclictest	736230	-21	fschecks_time	09:05:18	1
706195	99	46	35,7	cyclictest	0	-21	swapper/1	09:40:19	1
706195	99	46	35,7	cyclictest	0	-21	swapper/1	09:40:19	1
706194	99	46	39,5	cyclictest	909824	-21	switchtime	12:20:43	0
706194	99	46	38,5	cyclictest	741866	-21	/usr/sbin/munin	09:15:36	0
706194	99	46	37,7	cyclictest	735080	-21	tail	09:00:20	0
706194	99	46	36,8	cyclictest	729253	-21	kworker/u4:3	08:40:01	0
706194	99	46	36,7	cyclictest	922658	-21	gltestperf	12:35:21	0
706194	99	46	36,7	cyclictest	922658	-21	gltestperf	12:35:21	0
706194	99	46	36,7	cyclictest	717062	-21	gltestperf	07:50:20	0
706195	99	45	38,5	cyclictest	778845	-21	ssh	09:55:29	1
706195	99	45	36,6	cyclictest	823789	-21	ntp_kernel_err	10:45:24	1
706195	99	45	36,6	cyclictest	710125	-21	idleruntime-cro	07:25:00	1
706195	99	45	36,6	cyclictest	710125	-21	idleruntime-cro	07:25:00	1
706195	99	45	31,10	cyclictest	37	-21	kcompactd0	11:53:53	1
706194	99	45	37,5	cyclictest	736985	-21	kworker/u4:0+rpciod	09:10:16	0
706194	99	45	35,6	cyclictest	718851	-21	timerwakeupswit	07:55:38	0
706194	99	45	27,16	cyclictest	773891	-21	df_abs	09:50:17	0
706194	99	45	27,15	cyclictest	0	-21	swapper/0	10:00:24	0
706195	99	44	33,8	cyclictest	728400	-21	fschecks_count	08:35:19	1
706194	99	44	37,5	cyclictest	823993	-21	ldconfig	10:45:35	0
706194	99	44	34,7	cyclictest	0	-21	swapper/0	10:15:13	0
706194	99	44	26,16	cyclictest	727989	-21	cron	08:34:59	0
706194	99	44	21,18	cyclictest	256	50	irq/23-42890000.ethernet	12:25:14	0
706195	99	43	34,7	cyclictest	734886	-21	fschecks_count	09:00:19	1
706195	99	43	34,6	cyclictest	0	-21	swapper/1	12:35:12	1
706195	99	43	34,6	cyclictest	0	-21	swapper/1	12:35:12	1
706195	99	43	34,6	cyclictest	0	-21	swapper/1	07:45:27	1
706195	99	43	33,7	cyclictest	733638	-21	fschecks_count	08:55:20	1
706195	99	43	33,7	cyclictest	719117	-21	latency_hist	08:00:01	1
706195	99	43	28,12	cyclictest	0	-21	swapper/1	08:45:38	1
706194	99	43	36,5	cyclictest	729777	-21	fschecks_time	08:40:19	0
706194	99	43	35,6	cyclictest	814506	-21	gltestperf	10:35:21	0
706194	99	43	34,6	cyclictest	732209	-21	aten_r7power_vo	08:50:20	0
706194	99	43	34,6	cyclictest	730731	-21	aten2__	08:45:15	0
706194	99	43	33,7	cyclictest	719334	-21	aten_r7power_po	08:00:16	0
706194	99	43	25,16	cyclictest	0	-21	swapper/0	07:30:21	0
706195	99	42	32,7	cyclictest	0	-21	swapper/1	07:40:36	1
706195	99	42	18,7	cyclictest	710084	-21	kworker/u4:0+events_unbound	07:35:08	1
706194	99	42	34,5	cyclictest	717738	-21	kworker/u4:12+rpciod	08:05:19	0
706195	99	41	30,8	cyclictest	0	-21	swapper/1	08:20:37	1
706194	99	41	34,5	cyclictest	707413	-21	kworker/u4:2+events_unbound	07:18:32	0
706195	99	40	27,9	cyclictest	0	-21	swapper/1	08:40:22	1
706195	99	40	25,12	cyclictest	0	-21	swapper/1	07:15:21	1
706194	99	40	33,5	cyclictest	722035	-21	fschecks_count	08:10:19	0
706194	99	39	32,4	cyclictest	707086	-21	wc	07:10:35	0
706194	99	39	29,8	cyclictest	725699	-21	aten_r7power_en	08:25:17	0
706194	99	39	28,8	cyclictest	0	-21	swapper/0	09:05:20	0
706194	99	39	27,8	cyclictest	0	-21	swapper/0	08:15:38	0
706195	99	37	27,8	cyclictest	706301	-21	latency_hist	07:10:02	1
706194	99	37	28,6	cyclictest	0	-21	swapper/0	07:35:15	0
706194	99	35	27,5	cyclictest	0	-21	swapper/0	07:10:02	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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