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 Tue Mar 17, 2026 12:44:08)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
720306	99	116	93,15	cyclictest	793944	-21	kworker/u4:15+events_unbound	10:14:42	0
720306	99	99	80,7	cyclictest	793944	-21	kworker/u4:15+events_unbound	10:09:42	0
720307	99	98	67,25	cyclictest	827669	-21	apt-get	10:35:12	1
720306	99	91	83,6	cyclictest	869862	-21	kworker/u4:6+events_unbound	11:29:55	0
720306	99	89	81,6	cyclictest	816619	-21	kworker/u4:7+events_unbound	10:29:45	0
720306	99	86	78,6	cyclictest	784859	-21	kworker/u4:4+events_unbound	10:04:42	0
720306	99	86	78,6	cyclictest	780975	-21	kworker/u4:3+events_unbound	09:49:39	0
720306	99	86	78,6	cyclictest	780975	-21	kworker/u4:3+events_unbound	09:49:39	0
720307	99	84	75,5	cyclictest	721530	-21	kworker/u4:5+events_unbound	07:35:00	1
720306	99	83	75,6	cyclictest	735676	-21	kworker/u4:0+events_unbound	09:34:36	0
720307	99	81	75,4	cyclictest	762810	-21	kworker/u4:8+events_unbound	09:24:34	1
720307	99	81	70,5	cyclictest	865353	-21	kworker/u4:0+events_unbound	11:20:00	1
720306	99	80	69,8	cyclictest	715391	-21	kworker/u4:6+events_unbound	07:10:01	0
720306	99	80	66,11	cyclictest	53	-21	kswapd0	11:30:13	0
720306	99	79	72,5	cyclictest	726649	-21	kworker/u4:13+events_unbound	08:34:21	0
720306	99	77	70,5	cyclictest	812059	-21	kworker/u4:6+events_unbound	10:39:47	0
720306	99	77	69,6	cyclictest	887221	-21	kworker/u4:8+events_unbound	11:44:58	0
720306	99	74	64,7	cyclictest	736950	-21	kworker/u4:3+events_unbound	09:29:59	0
720307	99	73	66,5	cyclictest	722810	-21	kworker/u4:1+events_unbound	08:05:00	1
720306	99	72	63,7	cyclictest	825670	-21	kworker/u4:3+events_unbound	10:34:46	0
720306	99	72	60,10	cyclictest	53	-21	kswapd0	12:10:12	0
720306	99	71	63,6	cyclictest	847396	-21	kworker/u4:6+events_unbound	10:59:50	0
720306	99	70	63,5	cyclictest	715391	-21	kworker/u4:6+events_unbound	07:29:13	0
720306	99	68	62,4	cyclictest	722811	-21	kworker/u4:7+events_unbound	07:19:11	0
720306	99	67	62,4	cyclictest	730484	-21	kworker/u4:17+events_unbound	08:25:01	0
720306	99	67	60,5	cyclictest	715390	-21	kworker/u4:3+events_unbound	07:24:12	0
720306	99	65	49,11	cyclictest	0	-21	swapper/0	10:40:40	0
720307	99	64	56,6	cyclictest	865353	-21	kworker/u4:0+events_unbound	11:20:02	1
720306	99	64	56,6	cyclictest	842906	-21	kworker/u4:7+events_unbound	11:10:02	0
720307	99	62	54,5	cyclictest	0	-21	swapper/1	11:50:36	1
720306	99	62	55,5	cyclictest	748796	-21	kworker/u4:12+events_unbound	09:04:26	0
720306	99	62	54,6	cyclictest	715390	-21	kworker/u4:3+events_unbound	07:49:14	0
720306	99	62	52,6	cyclictest	900808	-21	kworker/u4:8+events_unbound	12:00:13	0
720307	99	61	53,6	cyclictest	378	-21	dbus-daemon	11:44:56	1
720307	99	61	44,6	cyclictest	900809	-21	kworker/u4:9+events_unbound	11:59:59	1
720307	99	60	55,4	cyclictest	758232	-21	kworker/u4:2+events_unbound	09:19:32	1
720306	99	60	44,11	cyclictest	53	-21	kswapd0	12:05:14	0
720307	99	59	52,5	cyclictest	865353	-21	kworker/u4:0+events_unbound	11:30:03	1
720306	99	59	38,18	cyclictest	854612	-21	gltestperf	11:05:20	0
720306	99	58	51,5	cyclictest	736950	-21	kworker/u4:3+events_unbound	09:35:03	0
720306	99	58	49,7	cyclictest	927030	-21	kworker/u4:0+events_unbound	12:36:42	0
720307	99	57	50,5	cyclictest	744809	-21	kworker/u4:14+events_unbound	08:44:23	1
720306	99	57	50,5	cyclictest	743426	-21	kworker/u4:11+events_unbound	08:39:22	0
720306	99	56	10,37	cyclictest	0	-21	swapper/0	11:20:27	0
720307	99	55	48,4	cyclictest	0	-21	swapper/1	12:00:27	1
720306	99	55	49,5	cyclictest	735676	-21	kworker/u4:0+events_unbound	08:49:24	0
720306	99	55	37,16	cyclictest	735716	-21	munin-plugin-st	08:10:00	0
720306	99	54	47,5	cyclictest	894996	-21	/usr/sbin/munin	11:50:37	0
720307	99	53	46,4	cyclictest	872115	-21	fschecks_count	11:25:21	1
720307	99	53	45,5	cyclictest	0	-21	swapper/1	10:05:25	1
720307	99	53	43,7	cyclictest	739414	-21	timerandwakeup	08:20:41	1
720307	99	53	42,8	cyclictest	0	-21	swapper/1	10:45:29	1
720306	99	53	45,6	cyclictest	838405	-21	kworker/u4:11+events_unbound	10:47:02	0
720306	99	53	45,6	cyclictest	721530	-21	kworker/u4:5+events_unbound	08:04:18	0
720307	99	52	45,5	cyclictest	784859	-21	kworker/u4:4+events_unbound	10:05:00	1
720307	99	51	45,4	cyclictest	925042	-21	cut	12:25:17	1
720307	99	51	44,5	cyclictest	825671	-21	kworker/u4:4+events_unbound	10:54:51	1
720307	99	51	43,6	cyclictest	905324	-21	kworker/u4:14+events_unbound	12:30:42	1
720306	99	51	43,6	cyclictest	918752	-21	kworker/u4:2+events_unbound	12:18:01	0
720306	99	51	38,8	cyclictest	256	50	irq/23-42890000.ethernet	08:20:01	0
720306	99	51	30,17	cyclictest	0	-21	swapper/0	09:25:01	0
720307	99	50	43,5	cyclictest	787199	-21	cron	09:50:00	1
720307	99	50	43,5	cyclictest	787199	-21	cron	09:49:59	1
720307	99	50	39,6	cyclictest	0	-21	swapper/1	10:55:31	1
720306	99	50	5,35	cyclictest	840812	-21	apt-get	10:50:11	0
720306	99	50	43,5	cyclictest	860873	-21	kworker/u4:4+events_unbound	11:15:42	0
720306	99	50	43,5	cyclictest	793943	-21	kworker/u4:14+events_unbound	09:56:59	0
720306	99	50	43,5	cyclictest	780975	-21	kworker/u4:3+events_unbound	10:22:00	0
720306	99	50	43,5	cyclictest	715388	-21	kworker/u4:0+events_unbound	07:34:13	0
720306	99	49	43,4	cyclictest	896264	-21	kworker/u4:10+events_unbound	12:24:59	0
720306	99	49	42,5	cyclictest	927030	-21	kworker/u4:0+events_unbound	12:33:00	0
720306	99	49	42,5	cyclictest	788827	-21	awk	09:50:39	0
720306	99	49	42,5	cyclictest	758232	-21	kworker/u4:2+events_unbound	09:17:02	0
720306	99	49	39,7	cyclictest	751807	-21	aten_r7power_en	09:10:15	0
720306	99	49	29,17	cyclictest	0	-21	swapper/0	07:40:37	0
720307	99	48	41,5	cyclictest	924812	-21	latency_hist	12:25:02	1
720307	99	48	41,5	cyclictest	913658	-21	kworker/u4:20+events_unbound	12:12:59	1
720307	99	48	39,7	cyclictest	776456	-21	kworker/u4:2+events_unbound	09:45:01	1
720306	99	48	38,8	cyclictest	736981	-21	cron	08:14:59	0
720306	99	48	28,14	cyclictest	905324	-21	kworker/u4:14+events_unbound	12:28:35	0
720307	99	47	40,5	cyclictest	824174	-21	ld	10:30:39	1
720306	99	47	8,26	cyclictest	890231	-21	sh	11:45:27	0
720306	99	47	38,7	cyclictest	726982	-21	aten_r7power_vo	07:35:17	0
720306	99	47	38,6	cyclictest	810270	-21	grep	10:15:20	0
720307	99	46	39,4	cyclictest	0	-21	swapper/1	12:10:00	1
720307	99	46	37,6	cyclictest	916578	-21	fschecks_time	12:15:20	1
720307	99	46	36,7	cyclictest	765270	-21	aten_r7power_en	09:25:16	1
720307	99	46	33,8	cyclictest	53	-21	kswapd0	10:25:01	1
720306	99	46	40,5	cyclictest	882682	-21	kworker/u4:13+events_unbound	11:39:01	0
720306	99	46	36,7	cyclictest	899657	-21	unixbench-2d	11:55:40	0
720306	99	46	32,8	cyclictest	853796	-21	kworker/u4:1	11:05:00	0
720306	99	46	32,8	cyclictest	853796	-21	kworker/u4:1	11:05:00	0
720307	99	45	38,5	cyclictest	785519	-21	kworker/u4:10+events_unbound	10:10:18	1
720307	99	45	38,5	cyclictest	729673	-21	grep	07:45:18	1
720307	99	45	37,6	cyclictest	735676	-21	kworker/u4:0+events_unbound	08:54:25	1
720307	99	45	37,5	cyclictest	819186	-21	fschecks_time	10:25:20	1
720307	99	45	37,5	cyclictest	788483	-21	/usr/sbin/munin	09:50:37	1
720307	99	45	36,7	cyclictest	731511	-21	sendmail_mailqu	07:50:47	1
720307	99	45	35,7	cyclictest	0	-21	swapper/1	11:05:33	1
720306	99	45	37,6	cyclictest	776456	-21	kworker/u4:2+events_unbound	09:41:58	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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