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 100 highest latencies:

System rack7slot2.osadl.org (updated Fri Jun 26, 2026 12:44:13)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
687293	99	114	100,6	cyclictest	843885	-21	kworker/u4:6+events_unbound	11:54:58	1
687293	99	111	103,6	cyclictest	786650	-21	kworker/u4:3+events_unbound	10:34:48	1
687292	99	110	103,5	cyclictest	830528	-21	kworker/u4:6+events_unbound	11:19:56	0
687292	99	110	102,6	cyclictest	756166	-21	kworker/u4:8+events_unbound	10:09:46	0
687293	99	109	93,6	cyclictest	861720	-21	kworker/u4:2+events_unbound	11:59:59	1
687292	99	107	99,6	cyclictest	777774	-21	kworker/u4:15+events_unbound	10:24:48	0
687293	99	102	95,5	cyclictest	751735	-21	kworker/u4:3+events_unbound	09:54:42	1
687293	99	91	84,5	cyclictest	713063	-21	kworker/u4:6+events_unbound	09:04:39	1
687293	99	90	82,6	cyclictest	693638	-21	kworker/u4:11+events_unbound	07:34:23	1
687292	99	90	83,5	cyclictest	692360	-21	kworker/u4:1+events_unbound	07:29:22	0
687293	99	88	81,5	cyclictest	734568	-21	kworker/u4:7+events_unbound	09:29:41	1
687293	99	88	80,6	cyclictest	707956	-21	kworker/u4:6+events_unbound	08:29:28	1
687292	99	87	80,5	cyclictest	715605	-21	kworker/u4:1+events_unbound	09:09:39	0
687292	99	86	78,6	cyclictest	843883	-21	kworker/u4:4+events_unbound	12:35:04	0
687292	99	86	78,6	cyclictest	843883	-21	kworker/u4:4+events_unbound	12:35:04	0
687293	99	85	78,5	cyclictest	693631	-21	kworker/u4:0+events_unbound	07:59:26	1
687293	99	85	70,6	cyclictest	702838	-21	kworker/u4:9+events_unbound	08:19:27	1
687293	99	84	77,5	cyclictest	664013	-21	kworker/u4:2+events_unbound	07:24:22	1
687293	99	84	77,5	cyclictest	664013	-21	kworker/u4:2+events_unbound	07:24:22	1
687293	99	84	76,5	cyclictest	697647	-21	kworker/u4:16+events_unbound	07:55:00	1
687292	99	84	76,6	cyclictest	713064	-21	kworker/u4:7+events_unbound	08:54:36	0
687292	99	82	74,6	cyclictest	711793	-21	kworker/u4:3+events_unbound	08:44:31	0
687293	99	80	73,5	cyclictest	713064	-21	kworker/u4:7+events_unbound	08:49:38	1
687293	99	80	72,6	cyclictest	684695	-21	kworker/u4:3+events_unbound	07:14:19	1
687292	99	80	71,6	cyclictest	53	-21	kswapd0	11:05:00	0
687293	99	78	71,5	cyclictest	804407	-21	kworker/u4:10+events_unbound	10:50:03	1
687293	99	78	71,5	cyclictest	700185	-21	kworker/u4:1+events_unbound	08:09:27	1
687292	99	78	70,6	cyclictest	53	-21	kswapd0	11:15:00	0
687292	99	78	70,6	cyclictest	53	-21	kswapd0	11:15:00	0
687293	99	76	58,5	cyclictest	687224	-21	kworker/u4:7+events_unbound	07:50:02	1
687292	99	76	71,3	cyclictest	725534	-21	kworker/u4:15+events_unbound	09:34:40	0
687292	99	75	68,5	cyclictest	694993	-21	kworker/u4:12+events_unbound	07:49:24	0
687293	99	73	66,5	cyclictest	803771	-21	kworker/u4:8+events_unbound	10:49:51	1
687292	99	71	63,6	cyclictest	687221	-21	kworker/u4:4+events_unbound	08:14:28	0
687293	99	70	56,6	cyclictest	713064	-21	kworker/u4:7+events_unbound	08:50:01	1
687292	99	68	61,5	cyclictest	687221	-21	kworker/u4:4+events_unbound	08:34:27	0
687293	99	67	49,7	cyclictest	751735	-21	kworker/u4:3+events_unbound	10:07:59	1
687293	99	65	58,5	cyclictest	883474	-21	kworker/u4:12+events_unbound	12:30:03	1
687293	99	64	49,7	cyclictest	716899	-21	kworker/u4:5+events_unbound	09:44:00	1
687293	99	63	56,5	cyclictest	53	-21	kswapd0	11:29:59	1
687293	99	63	55,6	cyclictest	765102	-21	kworker/u4:0+events_unbound	10:05:00	1
687293	99	62	49,5	cyclictest	821619	-21	kworker/u4:5+events_unbound	11:10:00	1
687292	99	62	55,5	cyclictest	742797	-21	kworker/u4:11+events_unbound	10:16:46	0
687292	99	62	54,5	cyclictest	841831	-21	fschecks_count	11:30:21	0
687292	99	62	53,5	cyclictest	794158	-21	grep	10:35:39	0
687293	99	61	51,7	cyclictest	53	-21	kswapd0	10:39:59	1
687293	99	61	49,5	cyclictest	707949	-21	kworker/u4:1+events_unbound	08:39:31	1
687293	99	61	47,11	cyclictest	0	-21	swapper/1	09:55:13	1
687293	99	61	47,11	cyclictest	0	-21	swapper/1	09:55:13	1
687292	99	61	33,25	cyclictest	698114	-21	fschecks_count	07:50:23	0
687292	99	60	53,5	cyclictest	694993	-21	kworker/u4:12+events_unbound	07:39:24	0
687292	99	60	53,5	cyclictest	687221	-21	kworker/u4:4+events_unbound	08:05:01	0
687292	99	60	53,5	cyclictest	687221	-21	kworker/u4:4+events_unbound	08:05:01	0
687293	99	59	52,5	cyclictest	713063	-21	kworker/u4:6+events_unbound	09:05:02	1
687292	99	59	51,6	cyclictest	839435	-21	kworker/u4:2+events_unbound	11:30:00	0
687292	99	59	48,5	cyclictest	713064	-21	kworker/u4:7+events_unbound	09:20:03	0
687292	99	58	36,19	cyclictest	731944	-21	ssh	09:25:13	0
687292	99	58	36,19	cyclictest	702853	-21	cron	08:10:00	0
687293	99	57	45,9	cyclictest	828141	-21	sort	11:15:02	1
687293	99	57	45,9	cyclictest	828141	-21	sort	11:15:02	1
687292	99	57	49,6	cyclictest	830524	-21	kworker/u4:0+events_unbound	11:24:00	0
687292	99	57	49,6	cyclictest	830524	-21	kworker/u4:0+events_unbound	11:23:59	0
687293	99	55	42,6	cyclictest	843882	-21	kworker/u4:3+events_unbound	11:41:46	1
687292	99	55	46,6	cyclictest	53	-21	kswapd0	10:30:01	0
687292	99	55	46,6	cyclictest	53	-21	kswapd0	10:30:01	0
687292	99	55	41,12	cyclictest	867889	-21	cut	12:00:15	0
687293	99	54	46,6	cyclictest	716899	-21	kworker/u4:5+events_unbound	09:11:59	1
687293	99	54	46,6	cyclictest	713064	-21	kworker/u4:7+events_unbound	08:59:39	1
687292	99	54	46,6	cyclictest	742797	-21	kworker/u4:11+events_unbound	10:13:00	0
687292	99	54	46,6	cyclictest	742797	-21	kworker/u4:11+events_unbound	10:13:00	0
687292	99	54	44,7	cyclictest	687221	-21	kworker/u4:4+events_unbound	08:39:30	0
687292	99	54	44,6	cyclictest	0	-21	swapper/0	12:05:25	0
687292	99	54	32,20	cyclictest	877181	-21	gltestperf	12:10:26	0
687293	99	53	45,6	cyclictest	702838	-21	kworker/u4:9+events_unbound	08:10:04	1
687293	99	53	37,7	cyclictest	700185	-21	kworker/u4:1+events_unbound	08:04:04	1
687293	99	53	37,7	cyclictest	700185	-21	kworker/u4:1+events_unbound	08:04:04	1
687292	99	53	47,4	cyclictest	751735	-21	kworker/u4:3+events_unbound	09:51:00	0
687292	99	53	46,5	cyclictest	751735	-21	kworker/u4:3+events_unbound	09:59:00	0
687292	99	53	46,5	cyclictest	751735	-21	kworker/u4:3+events_unbound	09:58:59	0
687292	99	53	41,10	cyclictest	791085	-21	kworker/u4:2+events_unbound	10:53:46	0
687292	99	53	32,17	cyclictest	0	-21	swapper/0	11:36:08	0
687292	99	52	44,6	cyclictest	700187	-21	kworker/u4:6+events_unbound	08:00:01	0
687292	99	52	42,6	cyclictest	719677	-21	timerwakeupswit	09:10:39	0
687292	99	52	33,16	cyclictest	0	-21	swapper/0	12:25:00	0
687293	99	51	43,5	cyclictest	868293	-21	gltestperf	12:00:20	1
687292	99	51	43,6	cyclictest	891714	-21	kworker/u4:15+events_unbound	12:32:00	0
687292	99	51	40,9	cyclictest	851238	-21	/usr/sbin/munin	11:40:37	0
687293	99	50	42,5	cyclictest	891117	-21	diskmemload	12:25:46	1
687293	99	50	41,7	cyclictest	728784	-21	unixbench_singl	09:20:39	1
687293	99	50	26,8	cyclictest	734566	-21	kworker/u4:4+events_unbound	09:48:41	1
687293	99	50	26,8	cyclictest	734566	-21	kworker/u4:4+events_unbound	09:48:41	1
687292	99	50	43,5	cyclictest	745551	-21	gltestperf	09:40:21	0
687292	99	50	43,5	cyclictest	742797	-21	kworker/u4:11+events_unbound	10:03:00	0
687292	99	50	40,7	cyclictest	786651	-21	kworker/u4:4+events_unbound	10:44:50	0
687292	99	50	36,9	cyclictest	692753	-21	df	07:30:16	0
687293	99	49	41,5	cyclictest	804407	-21	kworker/u4:10+events_unbound	11:01:06	1
687293	99	49	41,5	cyclictest	0	-21	swapper/1	11:35:35	1
687293	99	49	40,7	cyclictest	736753	-21	sh	09:30:20	1
687293	99	49	40,5	cyclictest	0	-21	swapper/1	10:10:16	1
687293	99	49	40,5	cyclictest	0	-21	swapper/1	10:10:16	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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