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 Thu Feb 12, 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
771566	99	104	95,6	cyclictest	923767	-21	kworker/u4:4+events_unbound	11:31:40	1
771565	99	104	96,6	cyclictest	875667	-21	kworker/u4:2+events_unbound	10:46:33	0
771566	99	99	92,5	cyclictest	767904	-21	kworker/u4:1+events_unbound	07:15:31	1
771566	99	98	92,4	cyclictest	804856	-21	kworker/u4:5+events_unbound	09:16:18	1
771565	99	95	88,5	cyclictest	971565	-21	kworker/u4:4+events_unbound	12:31:51	0
771566	99	90	82,5	cyclictest	770307	-21	kworker/u4:0+events_unbound	07:35:36	1
771565	99	89	72,7	cyclictest	822921	-21	kworker/u4:6+events_unbound	09:51:23	0
771566	99	88	75,5	cyclictest	813899	-21	kworker/u4:3+events_unbound	09:26:18	1
771565	99	85	77,6	cyclictest	840299	-21	kworker/u4:10+events_unbound	09:56:24	0
771565	99	83	76,5	cyclictest	902405	-21	kworker/u4:13+events_unbound	11:06:35	0
771565	99	79	72,5	cyclictest	923767	-21	kworker/u4:4+events_unbound	11:31:42	0
771566	99	75	69,4	cyclictest	776666	-21	kworker/u4:13+events_unbound	08:35:00	1
771565	99	75	66,6	cyclictest	893583	-21	kworker/u4:2+events_unbound	11:21:38	0
771566	99	74	67,5	cyclictest	799728	-21	kworker/u4:4+events_unbound	09:00:01	1
771566	99	73	66,4	cyclictest	799731	-21	kworker/u4:7+events_unbound	09:05:01	1
771566	99	72	62,7	cyclictest	847434	-21	fschecks_time	10:00:19	1
771565	99	72	64,5	cyclictest	770309	-21	kworker/u4:6+events_unbound	07:30:01	0
771566	99	70	53,5	cyclictest	875667	-21	kworker/u4:2+events_unbound	10:36:28	1
771565	99	69	62,5	cyclictest	958346	-21	kworker/u4:0+events_unbound	12:11:48	0
771566	99	68	45,8	cyclictest	844819	-21	kworker/u4:1+events_unbound	10:20:00	1
771566	99	66	59,5	cyclictest	867314	-21	kworker/u4:10+events_unbound	10:31:27	1
771566	99	66	49,5	cyclictest	782970	-21	kworker/u4:16+events_unbound	08:15:57	1
771565	99	65	56,7	cyclictest	889159	-21	kworker/u4:0+events_unbound	10:51:33	0
771566	99	64	45,5	cyclictest	901760	-21	kworker/u4:12+events_unbound	11:01:36	1
771565	99	64	56,6	cyclictest	786847	-21	kworker/u4:2+events_unbound	08:10:51	0
771566	99	63	55,6	cyclictest	928156	-21	kworker/u4:6+events_unbound	11:46:43	1
771566	99	63	48,5	cyclictest	781714	-21	kworker/u4:12+events_unbound	08:05:49	1
771565	99	63	55,6	cyclictest	962736	-21	kworker/u4:3+events_unbound	12:21:50	0
771565	99	63	55,6	cyclictest	962736	-21	kworker/u4:3+events_unbound	12:21:49	0
771565	99	63	39,22	cyclictest	947434	-21	latency_hist	11:55:01	0
771566	99	62	55,5	cyclictest	767904	-21	kworker/u4:1+events_unbound	07:25:34	1
771566	99	61	40,13	cyclictest	973388	-21	modprobe	12:25:00	1
771566	99	61	40,13	cyclictest	973388	-21	modprobe	12:25:00	1
771565	99	61	52,6	cyclictest	798385	-21	kworker/u4:14+events_unbound	08:56:16	0
771565	99	61	40,6	cyclictest	897969	-21	kworker/u4:9+events_unbound	11:00:23	0
771566	99	60	52,6	cyclictest	795781	-21	kworker/u4:1+events_unbound	08:51:13	1
771565	99	60	51,6	cyclictest	786847	-21	kworker/u4:2+events_unbound	08:20:01	0
771566	99	58	45,9	cyclictest	0	-21	swapper/1	09:55:35	1
771565	99	58	48,8	cyclictest	866565	-21	systemd	10:21:26	0
771566	99	57	50,5	cyclictest	781713	-21	kworker/u4:11+events_unbound	07:55:40	1
771565	99	57	50,5	cyclictest	923767	-21	kworker/u4:4+events_unbound	11:36:41	0
771565	99	57	50,5	cyclictest	923766	-21	kworker/u4:2+events_unbound	11:29:00	0
771565	99	57	48,6	cyclictest	834603	-21	/usr/sbin/munin	09:45:35	0
771565	99	57	41,6	cyclictest	906820	-21	kworker/u4:3+events_unbound	11:10:43	0
771565	99	57	41,6	cyclictest	906820	-21	kworker/u4:3+events_unbound	11:10:43	0
771566	99	56	45,8	cyclictest	1064	-21	lldpd	09:10:25	1
771566	99	56	44,9	cyclictest	0	-21	swapper/1	09:20:12	1
771565	99	56	40,13	cyclictest	928157	-21	kworker/u4:7+events_unbound	11:55:42	0
771566	99	55	46,6	cyclictest	960985	-21	fschecks_count	12:10:20	1
771566	99	55	46,6	cyclictest	786877	-21	apt-get	08:10:07	1
771566	99	55	43,10	cyclictest	54	-21	kswapd0	10:45:01	1
771565	99	55	41,11	cyclictest	974280	-21	kernelversion	12:25:22	0
771565	99	55	35,18	cyclictest	945771	-21	kworker/u4:9+events_unbound	12:05:00	0
771566	99	54	48,4	cyclictest	941368	-21	kworker/u4:0+events_unbound	11:52:00	1
771566	99	54	47,5	cyclictest	910600	-21	kworker/u4:7+events_unbound	11:12:00	1
771566	99	54	47,5	cyclictest	910600	-21	kworker/u4:7+events_unbound	11:12:00	1
771565	99	54	49,3	cyclictest	867314	-21	kworker/u4:10+events_unbound	10:37:29	0
771565	99	54	36,16	cyclictest	786880	-21	munin-run	08:10:00	0
771566	99	53	42,7	cyclictest	775037	-21	ps	07:20:34	1
771566	99	53	35,6	cyclictest	884677	-21	kworker/u4:6+events_unbound	10:46:01	1
771565	99	53	45,5	cyclictest	932546	-21	kworker/u4:12+events_unbound	12:06:47	0
771565	99	53	35,5	cyclictest	770310	-21	kworker/u4:7+events_unbound	07:10:01	0
771566	99	52	45,5	cyclictest	840299	-21	kworker/u4:10+events_unbound	10:06:00	1
771566	99	52	40,6	cyclictest	928157	-21	kworker/u4:7+events_unbound	11:55:59	1
771566	99	52	38,9	cyclictest	0	-21	swapper/1	07:50:23	1
771566	99	52	34,6	cyclictest	897969	-21	kworker/u4:9+events_unbound	10:57:43	1
771566	99	52	33,11	cyclictest	0	-21	swapper/1	12:25:35	1
771565	99	52	44,6	cyclictest	822917	-21	kworker/u4:2+events_unbound	09:33:34	0
771566	99	51	43,6	cyclictest	932546	-21	kworker/u4:12+events_unbound	12:05:04	1
771566	99	51	42,7	cyclictest	825475	-21	ld	09:35:24	1
771566	99	51	42,7	cyclictest	825475	-21	ld	09:35:24	1
771566	99	51	42,6	cyclictest	794986	-21	fschecks_count	08:40:18	1
771565	99	51	43,6	cyclictest	935242	-21	/usr/sbin/munin	11:40:23	0
771565	99	51	43,5	cyclictest	867314	-21	kworker/u4:10+events_unbound	10:26:26	0
771565	99	51	43,5	cyclictest	0	-21	swapper/0	09:40:15	0
771565	99	51	39,6	cyclictest	0	-21	swapper/0	09:25:00	0
771566	99	50	33,11	cyclictest	37	-21	kcompactd0	11:37:14	1
771565	99	50	29,19	cyclictest	895961	-21	fschecks_count	10:55:21	0
771565	99	50	2,15	cyclictest	982356	-21	ssh	12:35:09	0
771566	99	49	41,6	cyclictest	853812	-21	kworker/u4:11+events_unbound	10:13:59	1
771566	99	49	40,5	cyclictest	967117	-21	kworker/u4:8+events_unbound	12:32:13	1
771566	99	49	39,8	cyclictest	822116	-21	systemd	09:31:19	1
771566	99	49	35,5	cyclictest	897971	-21	kworker/u4:11+events_unbound	11:22:43	1
771566	99	49	31,5	cyclictest	826779	-21	kworker/u4:12+events_unbound	09:45:44	1
771566	99	49	26,14	cyclictest	795782	-21	kworker/u4:2+events_unbound	09:05:20	1
771565	99	49	42,5	cyclictest	914319	-21	unixbench_singl	11:15:42	0
771565	99	49	42,5	cyclictest	804856	-21	kworker/u4:5+events_unbound	09:27:00	0
771565	99	49	41,5	cyclictest	796376	-21	gltestperf	08:45:21	0
771566	99	48	41,5	cyclictest	771562	-21	cyclictest	11:26:39	1
771566	99	48	40,5	cyclictest	917082	-21	awk	11:20:00	1
771566	99	48	37,7	cyclictest	952686	-21	ntp_kernel_err	12:00:26	1
771565	99	48	41,4	cyclictest	0	-21	swapper/0	10:40:18	0
771565	99	48	40,6	cyclictest	851716	-21	df_abs	10:05:16	0
771565	99	48	40,5	cyclictest	775538	-21	latency_hist	07:25:01	0
771565	99	48	23,19	cyclictest	255	50	irq/23-42890000.ethernet	08:50:10	0
771566	99	47	39,5	cyclictest	791651	-21	sendmail_mailqu	08:25:35	1
771566	99	47	39,5	cyclictest	777965	-21	sshd	07:35:00	1
771566	99	47	37,7	cyclictest	830569	-21	unixbench_singl	09:40:39	1
771566	99	47	36,8	cyclictest	776666	-21	kworker/u4:13-rpciod	07:45:18	1
771566	99	47	36,7	cyclictest	0	-21	swapper/1	10:20:30	1
771566	99	47	32,7	cyclictest	967119	-21	kworker/u4:10+events_unbound	12:20:00	1
771565	99	47	40,5	cyclictest	782971	-21	kworker/u4:17+events_unbound	08:21:02	0
771565	99	47	28,17	cyclictest	0	-21	swapper/0	09:10:01	0
771565	99	47	27,17	cyclictest	0	-21	swapper/0	12:15:19	0
771565	99	47	25,19	cyclictest	784256	-21	apt-get	08:00:09	0
771565	99	47	24,20	cyclictest	0	-21	swapper/0	10:15:41	0
771566	99	46	33,10	cyclictest	0	-21	swapper/1	12:35:31	1
771565	99	46	40,4	cyclictest	0	-21	swapper/0	10:00:15	0
771565	99	46	39,5	cyclictest	874749	-21	timerwakeupswit	10:30:37	0
771565	99	46	39,5	cyclictest	825485	-21	ldconfig	09:35:24	0
771565	99	46	39,5	cyclictest	825485	-21	ldconfig	09:35:24	0
771565	99	46	39,5	cyclictest	807130	-21	/usr/sbin/munin	09:15:16	0
771565	99	46	38,5	cyclictest	772219	-21	gltestperf	07:10:23	0
771565	99	46	38,5	cyclictest	771562	-21	cyclictest	09:10:30	0
771566	99	45	37,4	cyclictest	0	-21	swapper/1	10:50:21	1
771566	99	45	36,6	cyclictest	0	-21	swapper/1	11:43:04	1
771566	99	45	35,8	cyclictest	443	-21	systemd-network	11:07:44	1
771565	99	45	37,6	cyclictest	793761	-21	fschecks_time	08:35:19	0
771565	99	45	37,5	cyclictest	791323	-21	gltestperf	08:25:21	0
771566	99	44	34,7	cyclictest	797121	-21	latency_hist	08:50:01	1
771566	99	44	34,7	cyclictest	0	-21	swapper/1	07:10:01	1
771565	99	44	38,4	cyclictest	857717	-21	systemd	10:11:24	0
771565	99	44	35,6	cyclictest	941369	-21	kworker/u4:4+events_unbound	11:50:01	0
771565	99	44	23,18	cyclictest	795043	-21	fschecks_time	08:40:18	0
771566	99	43	36,5	cyclictest	770310	-21	kworker/u4:7+events_unbound	08:24:00	1
771566	99	43	36,4	cyclictest	0	-21	swapper/1	07:10:30	1
771566	99	43	35,5	cyclictest	0	-21	swapper/1	10:25:22	1
771565	99	43	33,6	cyclictest	781046	-21	grep	07:45:19	0
771566	99	42	30,9	cyclictest	822921	-21	kworker/u4:6-xprtiod	09:50:21	1
771565	99	42	34,6	cyclictest	779159	-21	sshd	07:35:35	0
771565	99	42	33,7	cyclictest	782202	-21	fschecks_time	07:50:18	0
771565	99	42	33,6	cyclictest	783407	-21	fschecks_count	07:55:18	0
771566	99	41	32,7	cyclictest	785390	-21	timerandwakeup	08:00:40	1
771566	99	41	29,10	cyclictest	0	-21	swapper/1	08:35:19	1
771565	99	41	33,5	cyclictest	792441	-21	fschecks_count	08:30:18	0
771565	99	41	32,5	cyclictest	0	-21	swapper/0	07:35:00	0
771565	99	40	30,8	cyclictest	800067	-21	aten_r7power_vo	09:00:15	0
771566	99	39	30,6	cyclictest	0	-21	swapper/1	07:40:37	1
771565	99	39	30,5	cyclictest	0	-21	swapper/0	07:15:12	0
771565	99	39	29,7	cyclictest	780205	-21	switchtime	07:40:36	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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