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 Thu Jan 29, 2026 00:44:11)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
1546448	99	106	98,6	cyclictest	1692711	-21	kworker/u4:0+events_unbound	23:26:35	1
1546448	99	104	96,5	cyclictest	1547750	-21	kworker/u4:6+events_unbound	20:15:59	1
1546448	99	88	80,6	cyclictest	1609865	-21	kworker/u4:5+events_unbound	21:56:19	1
1546448	99	87	78,6	cyclictest	1609869	-21	kworker/u4:9+events_unbound	22:01:20	1
1546446	99	85	65,16	cyclictest	54	-21	kswapd0	22:10:08	0
1546448	99	84	66,6	cyclictest	1614334	-21	kworker/u4:7+events_unbound	22:11:22	1
1546448	99	81	73,6	cyclictest	1575531	-21	kworker/u4:2+events_unbound	21:16:11	1
1546446	99	79	59,15	cyclictest	1677295	-21	ssh	23:05:01	0
1546448	99	77	69,5	cyclictest	1569205	-21	kworker/u4:17+events_unbound	21:10:01	1
1546446	99	77	53,20	cyclictest	255	50	irq/23-42890000.ethernet	19:10:01	0
1546448	99	74	66,6	cyclictest	1556594	-21	kworker/u4:1+events_unbound	19:55:01	1
1546448	99	74	58,5	cyclictest	1649218	-21	kworker/u4:6+events_unbound	22:56:31	1
1546448	99	72	64,6	cyclictest	1701531	-21	kworker/u4:9+events_unbound	23:41:39	1
1546448	99	68	63,3	cyclictest	1549013	-21	kworker/u4:7+events_unbound	21:05:00	1
1546448	99	68	61,5	cyclictest	1653607	-21	kworker/u4:5+events_unbound	22:51:30	1
1546446	99	67	28,14	cyclictest	1575728	-21	apt-get	21:05:13	0
1546446	99	67	25,14	cyclictest	1712922	-21	ssh	23:45:27	0
1546448	99	66	59,5	cyclictest	1740604	-21	kworker/u4:9+events_unbound	00:18:31	1
1546448	99	65	59,5	cyclictest	1549013	-21	kworker/u4:7+events_unbound	19:40:01	1
1546446	99	65	48,14	cyclictest	54	-21	kswapd0	00:10:06	0
1546446	99	65	26,12	cyclictest	1585864	-21	apt-get	21:20:11	0
1546448	99	64	56,6	cyclictest	1697108	-21	kworker/u4:2+events_unbound	23:30:03	1
1546448	99	64	54,6	cyclictest	1576787	-21	kworker/u4:8+events_unbound	21:15:01	1
1546448	99	64	54,6	cyclictest	1576787	-21	kworker/u4:8+events_unbound	21:15:00	1
1546446	99	64	51,8	cyclictest	1569205	-21	kworker/u4:17-rpciod	21:50:50	0
1546448	99	63	55,6	cyclictest	1731758	-21	kworker/u4:6+events_unbound	00:09:00	1
1546448	99	63	55,6	cyclictest	1722905	-21	kworker/u4:1+events_unbound	00:03:07	1
1546448	99	63	55,6	cyclictest	1559104	-21	kworker/u4:12+events_unbound	20:00:00	1
1546446	99	63	24,13	cyclictest	1642697	-21	apt-get	22:25:12	0
1546448	99	61	56,3	cyclictest	1557850	-21	kworker/u4:8+events_unbound	20:15:01	1
1546448	99	61	54,5	cyclictest	1530263	-21	kworker/u4:10+events_unbound	20:40:01	1
1546448	99	61	52,7	cyclictest	388	-21	dbus-daemon	00:38:37	1
1546446	99	61	46,9	cyclictest	0	-21	swapper/0	23:40:02	0
1546448	99	60	46,5	cyclictest	1722906	-21	kworker/u4:2+events_unbound	23:58:07	1
1546446	99	60	5,38	cyclictest	1576828	-21	apt-get	21:10:06	0
1546446	99	60	5,38	cyclictest	1576828	-21	apt-get	21:10:06	0
1546446	99	60	16,24	cyclictest	1560419	-21	idleruntime-cro	20:05:01	0
1546446	99	59	38,18	cyclictest	0	-21	swapper/0	23:15:13	0
1546446	99	59	27,15	cyclictest	1751966	-21	ntpq	00:30:23	0
1546446	99	59	19,15	cyclictest	1693213	-21	ssh	23:22:52	0
1546448	99	57	49,6	cyclictest	1605036	-21	sshd	21:41:14	1
1546448	99	57	49,6	cyclictest	1605036	-21	sshd	21:41:14	1
1546448	99	57	49,5	cyclictest	1649218	-21	kworker/u4:6+events_unbound	22:45:00	1
1546446	99	57	25,13	cyclictest	1598968	-21	apt-get	21:35:11	0
1546446	99	57	17,16	cyclictest	1572565	-21	ntpq	20:50:30	0
1546446	99	56	34,17	cyclictest	1566321	-21	ps	20:25:34	0
1546446	99	56	31,21	cyclictest	1638341	-21	apt-get	22:20:11	0
1546446	99	56	20,14	cyclictest	1556181	-21	uname	19:45:30	0
1546446	99	56	20,12	cyclictest	1682564	-21	ntpq	23:10:28	0
1546446	99	56	19,10	cyclictest	1659260	-21	ssh	22:44:09	0
1546446	99	56	18,13	cyclictest	1652042	-21	ntpq	22:35:24	0
1546448	99	55	49,4	cyclictest	1753866	-21	kworker/u4:16+events_unbound	00:34:00	1
1546448	99	55	48,5	cyclictest	1649219	-21	kworker/u4:8+events_unbound	22:40:01	1
1546448	99	55	47,6	cyclictest	1647117	-21	/usr/sbin/munin	22:30:14	1
1546446	99	55	49,4	cyclictest	1710369	-21	kworker/u4:10+events_unbound	23:55:01	0
1546446	99	55	49,4	cyclictest	1607831	-21	aten_r7power_po	21:45:15	0
1546446	99	55	24,28	cyclictest	255	50	irq/23-42890000.ethernet	19:10:11	0
1546446	99	55	24,11	cyclictest	1707866	-21	apt-get	23:40:14	0
1546446	99	55	16,14	cyclictest	1637097	-21	ssh	22:18:31	0
1546446	99	55	16,12	cyclictest	1680164	-21	ssh	23:07:51	0
1546446	99	55	16,12	cyclictest	1680164	-21	ssh	23:07:50	0
1546446	99	55	15,16	cyclictest	1661818	-21	ssh	22:46:18	0
1546446	99	55	15,14	cyclictest	1740524	-21	ssh	00:17:08	0
1546448	99	54	48,4	cyclictest	1537855	-21	kworker/u4:17+events_unbound	19:10:01	1
1546448	99	54	46,6	cyclictest	1675076	-21	kworker/u4:12+events_unbound	23:05:00	1
1546448	99	54	42,8	cyclictest	1714765	-21	kworker/u4:13+events_unbound	23:50:18	1
1546446	99	54	37,11	cyclictest	1629320	-21	modprobe	22:10:00	0
1546446	99	54	27,8	cyclictest	1561141	-21	ntpq	20:05:27	0
1546446	99	54	16,15	cyclictest	1548506	-21	ntpq	19:15:24	0
1546446	99	54	16,13	cyclictest	1725149	-21	ssh	00:00:05	0
1546446	99	54	16,12	cyclictest	1742655	-21	apt-get	00:20:15	0
1546446	99	54	12,20	cyclictest	1733642	-21	ls	00:10:01	0
1546448	99	53	46,5	cyclictest	1679490	-21	kworker/u4:7+events_unbound	23:11:34	1
1546448	99	53	45,6	cyclictest	1583843	-21	kworker/u4:6+events_unbound	21:39:00	1
1546446	99	53	37,12	cyclictest	1747910	-21	ps	00:25:36	0
1546446	99	53	19,11	cyclictest	1651061	-21	ssh	22:34:59	0
1546446	99	53	17,10	cyclictest	1757661	-21	ssh	00:36:45	0
1546446	99	53	16,11	cyclictest	1552325	-21	ntpq	19:30:26	0
1546446	99	53	13,20	cyclictest	1665129	-21	ntpq	22:50:25	0
1546446	99	52	46,4	cyclictest	1622603	-21	kthreadd	22:01:20	0
1546446	99	52	30,18	cyclictest	1570144	-21	ps	20:40:34	0
1546446	99	52	30,18	cyclictest	1570144	-21	ps	20:40:34	0
1546446	99	52	15,11	cyclictest	1558682	-21	ntpq	19:55:32	0
1546448	99	51	44,5	cyclictest	1534066	-21	kworker/u4:15+events_unbound	20:55:02	1
1546446	99	51	30,16	cyclictest	1721666	-21	ssh	23:55:30	0
1546446	99	51	25,9	cyclictest	1557858	-21	cron	19:55:00	0
1546446	99	51	24,9	cyclictest	1549831	-21	ntpq	19:20:28	0
1546446	99	51	24,9	cyclictest	1549831	-21	ntpq	19:20:28	0
1546446	99	51	15,18	cyclictest	536	-21	rs:main		0
1546446	99	51	15,14	cyclictest	1596732	-21	ssh	21:31:55	0
1546446	99	51	14,12	cyclictest	1573727	-21	ntpq	20:55:22	0
1546448	99	50	42,6	cyclictest	1705429	-21	sd-accept	23:36:38	1
1546448	99	50	41,6	cyclictest	1690929	-21	fschecks_time	23:20:22	1
1546448	99	50	40,8	cyclictest	1575532	-21	kworker/u4:4+events_unbound	21:25:12	1
1546448	99	50	37,7	cyclictest	1534066	-21	kworker/u4:15+events_unbound	20:25:01	1
1546448	99	50	31,7	cyclictest	1625551	-21	fschecks_count	22:05:18	1
1546446	99	50	8,19	cyclictest	0	-21	swapper/0	23:30:28	0
1546446	99	50	36,8	cyclictest	1567966	-21	modprobe	20:35:00	0
1546446	99	50	26,3	cyclictest	1616472	-21	apt-get	21:55:15	0
1546446	99	50	15,12	cyclictest	1604192	-21	ntpq	21:40:33	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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