OSADL QA Farm on Real-time of Mainline Linux

About - Hardware - CPUs - Benchmarks - Graphics - Benchmarks - Kernels - Boards/Distros - Latency monitoring - Latency plots - System data - Profiles - Compare - Awards

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 all highest latencies:

System rack7slot2.osadl.org (updated Sat Aug 08, 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
737457	99	120	113,5	cyclictest	797897	-21	kworker/u4:0+events_unbound	10:05:41	1
737457	99	112	103,7	cyclictest	742534	-21	kworker/u4:8+events_unbound	08:40:29	1
737457	99	101	77,8	cyclictest	737390	-21	kworker/u4:7+events_unbound	08:10:23	1
737457	99	97	66,9	cyclictest	819777	-21	kworker/u4:5+events_unbound	10:35:47	1
737457	99	96	88,6	cyclictest	859812	-21	kworker/u4:10+events_unbound	11:20:55	1
737456	99	86	61,19	cyclictest	53	-21	kswapd0	10:30:23	0
737456	99	83	73,8	cyclictest	819776	-21	kworker/u4:4+events_unbound	10:10:42	0
737457	99	81	72,7	cyclictest	761962	-21	kworker/u4:7+events_unbound	08:45:30	1
737457	99	81	71,8	cyclictest	767068	-21	kworker/u4:3+events_unbound	09:05:35	1
737456	99	80	36,41	cyclictest	804011	-21	cron	09:50:00	0
737457	99	77	67,7	cyclictest	742534	-21	kworker/u4:8+events_unbound	08:55:31	1
737457	99	75	67,6	cyclictest	948491	-21	kworker/u4:1+events_unbound	12:36:02	1
737457	99	73	65,5	cyclictest	756852	-21	kworker/u4:11+events_unbound	09:10:35	1
737456	99	72	41,28	cyclictest	937114	-21	sendmail	12:20:01	0
737456	99	71	38,29	cyclictest	745574	-21	df_abs	07:40:18	0
737456	99	71	38,29	cyclictest	745574	-21	df_abs	07:40:18	0
737456	99	71	36,28	cyclictest	256	50	irq/23-42890000.ethernet	09:30:12	0
737456	99	70	2,19	cyclictest	871978	-21	ssh	11:05:38	0
737457	99	69	61,6	cyclictest	738684	-21	kworker/u4:9+events_unbound	08:20:28	1
737457	99	69	58,8	cyclictest	738686	-21	kworker/u4:11+events_unbound	07:55:21	1
737457	99	69	57,8	cyclictest	768370	-21	diskmemload	10:30:21	1
737457	99	68	61,5	cyclictest	738684	-21	kworker/u4:9+events_unbound	08:25:27	1
737457	99	68	55,9	cyclictest	0	-21	swapper/1	12:15:14	1
737456	99	68	36,30	cyclictest	756747	-21	unixbench_multi	08:20:45	0
737456	99	68	34,29	cyclictest	830891	-21	/usr/sbin/munin	10:20:41	0
737456	99	68	33,32	cyclictest	0	-21	swapper/0	10:15:42	0
737456	99	67	57,7	cyclictest	754189	-21	kworker/u4:4+events_unbound	08:15:27	0
737456	99	67	4,7	cyclictest	911897	-21	ssh	11:50:38	0
737456	99	66	2,19	cyclictest	814053	-21	ntpq	10:00:33	0
737456	99	66	2,13	cyclictest	748578	-21	ntpq	07:50:27	0
737456	99	65	36,26	cyclictest	915836	-21	gltestperf	11:55:22	0
737456	99	65	20,42	cyclictest	768958	-21	df_inode	09:10:19	0
737456	99	64	58,4	cyclictest	817624	-21	find	10:05:12	0
737456	99	64	29,32	cyclictest	743127	-21	gltestperf	07:30:21	0
737456	99	64	27,34	cyclictest	0	-21	swapper/0	12:30:34	0
737456	99	64	1,13	cyclictest	858569	-21	ssh	10:50:37	0
737457	99	63	56,5	cyclictest	859812	-21	kworker/u4:10+events_unbound	11:05:52	1
737457	99	63	53,7	cyclictest	742534	-21	kworker/u4:8+events_unbound	07:50:15	1
737456	99	63	51,9	cyclictest	53	-21	kswapd0	12:10:07	0
737456	99	63	32,29	cyclictest	884672	-21	fschecks_count	11:20:25	0
737456	99	63	30,28	cyclictest	0	-21	swapper/0	10:55:36	0
737456	99	63	23,36	cyclictest	950785	-21	aten_r7power_vo	12:35:18	0
737456	99	63	20,23	cyclictest	0	-21	swapper/0	12:08:33	0
737456	99	62	29,30	cyclictest	835589	-21	cpu	10:25:18	0
737456	99	62	23,36	cyclictest	256	50	irq/23-42890000.ethernet	07:55:21	0
737456	99	62	2,18	cyclictest	907194	-21	ntpq	11:45:26	0
737456	99	62	2,16	cyclictest	902147	-21	apt-get	11:40:17	0
737456	99	62	1,16	cyclictest	761437	-21	ntpq	08:40:24	0
737456	99	61	31,27	cyclictest	761961	-21	kworker/u4:6-rpciod	09:20:37	0
737456	99	61	30,28	cyclictest	0	-21	swapper/0	11:15:44	0
737456	99	61	30,28	cyclictest	0	-21	swapper/0	10:35:33	0
737456	99	61	28,29	cyclictest	0	-21	swapper/0	08:10:16	0
737456	99	61	2,4	cyclictest	751183	-21	ntpq	08:00:31	0
737456	99	61	2,10	cyclictest	762156	-21	apt-get	08:45:13	0
737456	99	61	19,39	cyclictest	746760	-21	aten2__	07:45:27	0
737456	99	60	3,13	cyclictest	766570	-21	ntpq	09:00:29	0
737456	99	60	30,27	cyclictest	805448	-21	timerandwakeup	09:50:40	0
737456	99	60	30,27	cyclictest	805448	-21	timerandwakeup	09:50:39	0
737456	99	60	26,31	cyclictest	757875	-21	switchtime	08:25:37	0
737456	99	60	2,19	cyclictest	774033	-21	ntpq	09:15:34	0
737456	99	60	2,19	cyclictest	774033	-21	ntpq	09:15:33	0
737456	99	60	2,16	cyclictest	898421	-21	ssh	11:35:32	0
737456	99	60	2,13	cyclictest	808752	-21	apt-get	09:55:11	0
737456	99	60	2,13	cyclictest	808752	-21	apt-get	09:55:11	0
737456	99	59	3,8	cyclictest	740746	-21	ntpq	07:20:28	0
737456	99	59	29,28	cyclictest	923728	-21	sh	12:04:48	0
737456	99	59	25,31	cyclictest	0	-21	swapper/0	09:35:41	0
737456	99	59	25,31	cyclictest	0	-21	swapper/0	08:05:20	0
737456	99	59	24,32	cyclictest	744964	-21	timerandwakeup	07:35:41	0
737456	99	59	2,18	cyclictest	760220	-21	ntpq	08:35:30	0
737456	99	59	2,12	cyclictest	782119	-21	apt-get	09:25:12	0
737456	99	59	2,11	cyclictest	937424	-21	apt-get	12:20:14	0
737456	99	59	17,28	cyclictest	0	-21	swapper/0	10:45:27	0
737457	99	58	51,5	cyclictest	738686	-21	kworker/u4:11+events_unbound	07:35:07	1
737456	99	58	30,25	cyclictest	837847	-21	kworker/u4:2-rpciod	11:10:32	0
737456	99	58	2,6	cyclictest	796232	-21	ntpq	09:40:31	0
737456	99	57	3,8	cyclictest	888670	-21	apt-get	11:25:12	0
737456	99	57	2,9	cyclictest	738177	-21	ntpq	07:10:25	0
737456	99	57	2,7	cyclictest	764038	-21	ntpq	08:50:29	0
737456	99	57	26,28	cyclictest	0	-21	swapper/0	07:25:20	0
737456	99	57	1,5	cyclictest	941797	-21	apt	12:25:12	0
737456	99	57	1,15	cyclictest	767900	-21	ntpq	09:05:33	0
737457	99	56	5,42	cyclictest	786697	-21	ssh	09:30:14	1
737457	99	56	47,6	cyclictest	828777	-21	kworker/u4:12+events_unbound	10:20:13	1
737457	99	56	47,6	cyclictest	739956	-21	kworker/u4:13+events_unbound	07:30:04	1
737457	99	56	43,4	cyclictest	760664	-21	kworker/u4:1+events_unbound	09:22:46	1
737456	99	56	27,26	cyclictest	867347	-21	gcc	11:00:30	0
737456	99	56	27,26	cyclictest	867347	-21	gcc	11:00:30	0
737456	99	56	27,26	cyclictest	0	-21	swapper/0	10:40:28	0
737456	99	56	10,43	cyclictest	894194	-21	grep	11:30:40	0
737456	99	55	2,9	cyclictest	740007	-21	munin-run	07:20:00	0
737456	99	55	23,29	cyclictest	0	-21	swapper/0	08:30:21	0
737456	99	55	2,12	cyclictest	765565	-21	/usr/sbin/munin	08:55:38	0
737457	99	54	43,7	cyclictest	0	-21	swapper/1	09:55:37	1
737457	99	54	43,7	cyclictest	0	-21	swapper/1	09:55:36	1
737457	99	54	41,5	cyclictest	859811	-21	kworker/u4:9+events_unbound	11:10:53	1
737457	99	54	40,10	cyclictest	0	-21	swapper/1	12:30:30	1
737457	99	53	45,6	cyclictest	916494	-21	timerandwakeup	11:55:41	1
737457	99	53	2,38	cyclictest	929352	-21	ssh	12:10:31	1
737457	99	52	44,6	cyclictest	796388	-21	sshd	09:40:38	1
737457	99	52	43,7	cyclictest	378	-21	dbus-daemon	10:15:41	1
737457	99	50	43,5	cyclictest	805391	-21	switchtime	09:50:38	1
737457	99	50	43,5	cyclictest	805391	-21	switchtime	09:50:38	1
737457	99	50	43,5	cyclictest	800331	-21	gltestperf	09:45:21	1
737457	99	50	42,6	cyclictest	917786	-21	kworker/u4:5+events_unbound	12:05:37	1
737457	99	49	42,5	cyclictest	902328	-21	aten_r7power_vo	11:40:22	1
737457	99	49	42,5	cyclictest	854245	-21	cat	10:45:40	1
737457	99	49	39,7	cyclictest	817462	-21	latency_hist	10:05:01	1
737457	99	48	6,28	cyclictest	782892	-21	ssh	09:25:27	1
737457	99	48	41,5	cyclictest	740536	-21	fschecks_time	07:20:21	1
737457	99	47	39,6	cyclictest	849789	-21	switchtime	10:40:38	1
737457	99	47	39,5	cyclictest	926120	-21	kworker/u4:8-rpciod	12:20:27	1
737457	99	47	37,8	cyclictest	747637	-21	timerwakeupswit	07:45:48	1
737457	99	47	37,7	cyclictest	942386	-21	kernelversion	12:25:23	1
737457	99	47	34,8	cyclictest	0	-21	swapper/1	12:00:19	1
737457	99	47	17,20	cyclictest	0	-21	swapper/1	10:10:28	1
737457	99	46	41,4	cyclictest	895248	-21	kworker/u4:4+events_unbound	11:49:46	1
737457	99	46	40,4	cyclictest	0	-21	swapper/1	11:25:14	1
737457	99	46	39,5	cyclictest	901841	-21	http	11:40:00	1
737457	99	46	39,5	cyclictest	774132	-21	proc_pri	09:15:37	1
737457	99	46	39,5	cyclictest	774132	-21	proc_pri	09:15:36	1
737457	99	46	36,7	cyclictest	746454	-21	kworker/u4:2-rpciod	08:15:17	1
737457	99	46	36,7	cyclictest	0	-21	swapper/1	11:00:12	1
737457	99	46	36,7	cyclictest	0	-21	swapper/1	11:00:12	1
737456	99	46	15,28	cyclictest	0	-21	swapper/0	07:10:01	0
737457	99	45	36,7	cyclictest	862828	-21	ntp_kernel_pll_	10:55:29	1
737457	99	45	3,29	cyclictest	836247	-21	ssh	10:25:35	1
737457	99	44	36,6	cyclictest	759326	-21	grep	08:30:38	1
737457	99	44	35,7	cyclictest	893154	-21	acpi	11:30:13	1
737457	99	44	35,6	cyclictest	0	-21	swapper/1	10:50:26	1
737457	99	44	34,7	cyclictest	0	-21	swapper/1	11:50:22	1
737457	99	43	37,4	cyclictest	0	-21	swapper/1	08:50:26	1
737457	99	42	35,5	cyclictest	791541	-21	cut	09:35:24	1
737457	99	42	34,5	cyclictest	738460	-21	threads	07:10:37	1
737457	99	42	32,7	cyclictest	0	-21	swapper/1	11:15:23	1
737457	99	40	31,6	cyclictest	0	-21	swapper/1	08:35:21	1
737457	99	40	27,10	cyclictest	0	-21	swapper/1	07:15:12	1
737457	99	39	30,5	cyclictest	729895	-21	kworker/u4:5+rpciod	07:10:01	1
737457	99	39	24,12	cyclictest	0	-21	swapper/1	08:05:20	1
737457	99	38	29,6	cyclictest	0	-21	swapper/1	08:00:27	1
737457	99	38	28,8	cyclictest	766156	-21	cpu	09:00:17	1
737457	99	37	24,10	cyclictest	0	-21	swapper/1	07:25:36	1
737457	99	36	28,4	cyclictest	0	-21	swapper/1	07:40:19	1
737457	99	36	28,4	cyclictest	0	-21	swapper/1	07:40:19	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


Access: public		Short link to this page
This page was last modified on 2019-05-28 - 00:17