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 Mon Jun 08, 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
1367962	99	142	129,8	cyclictest	1392296	-21	kworker/u4:5+events_unbound	09:10:46	0
1367962	99	95	6,37	cyclictest	1533221	-21	ssh	11:45:34	0
1367962	99	90	82,5	cyclictest	1444860	-21	kworker/u4:4+events_unbound	10:41:01	0
1367962	99	90	82,5	cyclictest	1444860	-21	kworker/u4:4+events_unbound	10:41:00	0
1367962	99	88	78,7	cyclictest	1560172	-21	kworker/u4:11+events_unbound	12:21:14	0
1367962	99	87	78,6	cyclictest	1538572	-21	kworker/u4:10+events_unbound	11:56:12	0
1367964	99	84	29,32	cyclictest	0	-21	swapper/1	11:45:38	1
1367962	99	81	71,7	cyclictest	53	-21	kswapd0	10:05:09	0
1367964	99	79	33,28	cyclictest	1367959	-21	cyclictest	11:11:45	1
1367964	99	78	28,29	cyclictest	0	-21	swapper/1	09:15:31	1
1367964	99	77	26,32	cyclictest	53	-21	kswapd0	11:25:17	1
1367962	99	74	66,5	cyclictest	1555846	-21	kworker/u4:8+events_unbound	12:26:14	0
1367962	99	74	63,9	cyclictest	53	-21	kswapd0	10:10:11	0
1367964	99	72	27,42	cyclictest	0	-21	swapper/1	11:05:15	1
1367962	99	72	51,17	cyclictest	1422054	-21	timerandwakeup	09:35:40	0
1367964	99	71	34,34	cyclictest	0	-21	swapper/1	10:05:20	1
1367964	99	71	29,38	cyclictest	0	-21	swapper/1	10:40:15	1
1367964	99	71	29,38	cyclictest	0	-21	swapper/1	10:40:14	1
1367964	99	70	63,5	cyclictest	1521931	-21	kworker/u4:4+events_unbound	11:35:00	1
1367962	99	70	62,6	cyclictest	1452981	-21	kworker/u4:9+events_unbound	10:15:57	0
1367962	99	70	61,6	cyclictest	1387191	-21	kworker/u4:11+events_unbound	09:00:01	0
1367964	99	67	57,7	cyclictest	1375581	-21	kworker/u4:15+events_unbound	07:45:25	1
1367964	99	67	27,37	cyclictest	0	-21	swapper/1	12:15:42	1
1367962	99	67	1,61	cyclictest	1375618	-21	apt-get	07:40:10	0
1367964	99	66	45,7	cyclictest	1369195	-21	kworker/u4:12+events_unbound	07:30:24	1
1367962	99	66	49,13	cyclictest	1571838	-21	unixbench_singl	12:30:39	0
1367964	99	65	40,23	cyclictest	1464171	-21	aten_r7power_cu	10:25:15	1
1367962	99	65	56,6	cyclictest	1369190	-21	kworker/u4:5+events_unbound	07:50:28	0
1367964	99	64	40,21	cyclictest	1383010	-21	sendmail_mailqu	08:05:37	1
1367964	99	64	35,26	cyclictest	1408349	-21	gltestperf	09:20:19	1
1367964	99	64	33,29	cyclictest	1455152	-21	diskmemload	10:15:01	1
1367964	99	64	32,28	cyclictest	0	-21	swapper/1	08:20:01	1
1367964	99	64	3,10	cyclictest	1574823	-21	apt-get	12:35:14	1
1367962	99	64	56,6	cyclictest	1466196	-21	kworker/u4:2+events_unbound	10:35:59	0
1367962	99	64	56,6	cyclictest	1448619	-21	kworker/u4:5+events_unbound	10:30:02	0
1367962	99	64	47,10	cyclictest	0	-21	swapper/0	11:05:13	0
1367964	99	63	33,26	cyclictest	1414835	-21	kworker/u4:3+rpciod	09:30:36	1
1367964	99	63	26,32	cyclictest	0	-21	swapper/1	11:45:01	1
1367964	99	62	34,24	cyclictest	0	-21	swapper/1	09:55:37	1
1367964	99	62	32,26	cyclictest	0	-21	swapper/1	09:35:32	1
1367964	99	62	3,15	cyclictest	1469188	-21	ssh	10:30:29	1
1367964	99	62	31,28	cyclictest	1391052	-21	sendmail	08:40:01	1
1367964	99	62	31,27	cyclictest	0	-21	swapper/1	11:20:30	1
1367964	99	62	27,31	cyclictest	0	-21	swapper/1	12:20:43	1
1367964	99	62	1,14	cyclictest	1459766	-21	ssh	10:20:10	1
1367962	99	62	53,6	cyclictest	1517597	-21	kworker/u4:12+events_unbound	11:28:59	0
1367964	99	61	29,29	cyclictest	1481471	-21	aten_r7power_vo	10:45:16	1
1367964	99	61	28,29	cyclictest	0	-21	swapper/1	10:55:34	1
1367964	99	61	2,17	cyclictest	1571453	-21	ntpq	12:30:34	1
1367962	99	61	52,6	cyclictest	1392296	-21	kworker/u4:5+events_unbound	08:50:01	0
1367964	99	60	46,12	cyclictest	0	-21	swapper/1	09:45:13	1
1367964	99	60	3,9	cyclictest	1485565	-21	ssh	10:50:12	1
1367964	99	60	3,10	cyclictest	1442498	-21	apt-get	10:00:10	1
1367964	99	60	30,26	cyclictest	0	-21	swapper/1	12:30:01	1
1367964	99	60	29,28	cyclictest	0	-21	swapper/1	11:55:32	1
1367964	99	60	26,31	cyclictest	0	-21	swapper/1	11:50:25	1
1367964	99	60	25,32	cyclictest	0	-21	swapper/1	09:30:01	1
1367964	99	60	25,30	cyclictest	0	-21	swapper/1	12:10:27	1
1367962	99	60	50,8	cyclictest	1448619	-21	kworker/u4:5+events_unbound	10:46:01	0
1367964	99	59	29,27	cyclictest	0	-21	swapper/1	11:35:36	1
1367962	99	59	49,7	cyclictest	1431742	-21	kworker/u4:7+events_unbound	09:55:00	0
1367964	99	58	9,10	cyclictest	1073	-21	snmpd	07:44:30	1
1367964	99	58	4,9	cyclictest	1472782	-21	apt-get	10:35:17	1
1367964	99	58	3,17	cyclictest	1506830	-21	ssh	11:15:13	1
1367964	99	58	27,27	cyclictest	1435027	-21	timerwakeupswit	09:50:38	1
1367962	99	58	50,6	cyclictest	1449246	-21	kworker/u4:8+events_unbound	11:01:04	0
1367964	99	57	49,6	cyclictest	1396179	-21	systemd	08:55:43	1
1367964	99	57	28,26	cyclictest	0	-21	swapper/1	07:15:38	1
1367964	99	57	28,25	cyclictest	0	-21	swapper/1	12:00:24	1
1367964	99	57	28,25	cyclictest	0	-21	swapper/1	12:00:23	1
1367964	99	57	25,29	cyclictest	0	-21	swapper/1	09:15:01	1
1367964	99	57	24,31	cyclictest	0	-21	swapper/1	12:05:21	1
1367964	99	57	22,31	cyclictest	0	-21	swapper/1	10:15:26	1
1367964	99	57	1,14	cyclictest	1375151	-21	ntpq	07:35:31	1
1367962	99	57	49,6	cyclictest	1359219	-21	kworker/u4:2+events_unbound	07:10:22	0
1367962	99	57	38,14	cyclictest	1502599	-21	ssh	11:10:13	0
1367964	99	56	44,7	cyclictest	0	-21	swapper/1	07:55:36	1
1367964	99	56	25,27	cyclictest	0	-21	swapper/1	09:40:32	1
1367964	99	56	2,17	cyclictest	1389742	-21	modprobe	08:35:00	1
1367964	99	56	2,10	cyclictest	1372557	-21	ntpq	07:25:29	1
1367962	99	56	45,7	cyclictest	1465028	-21	/usr/sbin/munin	10:25:36	0
1367962	99	56	44,9	cyclictest	1439291	-21	/usr/sbin/munin	09:55:39	0
1367962	99	56	36,17	cyclictest	1397516	-21	apt	09:05:01	0
1367964	99	55	29,24	cyclictest	1379131	-21	proc_pri	07:50:34	1
1367964	99	55	22,31	cyclictest	0	-21	swapper/1	08:25:18	1
1367964	99	55	2,13	cyclictest	1397662	-21	/usr/sbin/munin	09:05:41	1
1367962	99	55	46,7	cyclictest	378	-21	dbus-daemon	11:21:07	0
1367964	99	54	3,16	cyclictest	1384098	-21	ntpq	08:10:24	1
1367964	99	54	3,11	cyclictest	1391218	-21	apt-get	08:40:12	1
1367964	99	53	22,29	cyclictest	0	-21	swapper/1	07:10:19	1
1367964	99	53	21,29	cyclictest	0	-21	swapper/1	11:00:18	1
1367964	99	53	2,10	cyclictest	1386114	-21	sshd	08:20:13	1
1367964	99	53	13,9	cyclictest	1393325	-21	sed	08:45:36	1
1367962	99	53	44,6	cyclictest	1385785	-21	unixbench_multi	08:15:38	0
1367962	99	53	42,9	cyclictest	37	-21	kcompactd0	09:30:17	0
1367962	99	53	36,9	cyclictest	1369190	-21	kworker/u4:5+events_unbound	07:55:27	0
1367964	99	52	3,6	cyclictest	1394409	-21	ntpq	08:50:32	1
1367964	99	52	2,15	cyclictest	1381604	-21	ntpq	08:00:28	1
1367964	99	52	15,34	cyclictest	1396937	-21	netstat	09:00:22	1
1367964	99	52	10,8	cyclictest	1371834	-21	sed	07:25:01	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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