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 Sun Dec 07, 2025 12:44:08)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
1695584	99	150	113,22	cyclictest	1696823	-21	kworker/u4:7+events_unbound	08:15:34	0
1695584	99	120	110,8	cyclictest	1847980	-21	kworker/u4:8+events_unbound	12:01:08	0
1695584	99	119	113,4	cyclictest	1732413	-21	kworker/u4:15+events_unbound	09:20:47	0
1695584	99	119	112,5	cyclictest	1793065	-21	kworker/u4:4+events_unbound	11:11:01	0
1695584	99	118	108,7	cyclictest	1764258	-21	kworker/u4:6+events_unbound	10:05:52	0
1695584	99	115	108,5	cyclictest	1817598	-21	kworker/u4:15+events_unbound	11:26:03	0
1695584	99	115	104,8	cyclictest	1793064	-21	kworker/u4:3+events_unbound	10:46:10	0
1695584	99	114	107,4	cyclictest	1695519	-21	kworker/u4:1+events_unbound	07:30:28	0
1695584	99	113	106,5	cyclictest	1785955	-21	kworker/u4:7+events_unbound	10:35:56	0
1695584	99	113	104,6	cyclictest	1695514	-21	kworker/u4:0+events_unbound	07:35:27	0
1695584	99	107	99,6	cyclictest	1863325	-21	kworker/u4:12+events_unbound	12:31:32	0
1695584	99	107	98,7	cyclictest	1831566	-21	kworker/u4:9+events_unbound	11:36:21	0
1695584	99	106	98,6	cyclictest	1879838	-21	kworker/u4:8+events_unbound	12:36:34	0
1695584	99	106	98,6	cyclictest	1749766	-21	kworker/u4:16+events_unbound	10:00:51	0
1695584	99	104	96,6	cyclictest	1764255	-21	kworker/u4:1+events_unbound	10:15:53	0
1695584	99	104	93,5	cyclictest	1800049	-21	kworker/u4:9+events_unbound	11:01:13	0
1695584	99	102	94,6	cyclictest	1771627	-21	kworker/u4:13+events_unbound	10:30:55	0
1695584	99	101	93,6	cyclictest	1764258	-21	kworker/u4:6+events_unbound	10:10:53	0
1695584	99	101	93,6	cyclictest	1693059	-21	kworker/u4:5+events_unbound	07:15:25	0
1695584	99	100	76,18	cyclictest	1047	-21	sshd	09:35:12	0
1695584	99	100	76,18	cyclictest	1047	-21	sshd	09:35:12	0
1695584	99	99	92,5	cyclictest	1855367	-21	kworker/u4:3+events_unbound	12:11:11	0
1695584	99	99	91,6	cyclictest	1817598	-21	kworker/u4:15+events_unbound	12:06:28	0
1695585	99	96	86,7	cyclictest	1723971	-21	kworker/u4:10+events_unbound	09:30:48	1
1695585	99	95	87,5	cyclictest	1824827	-21	kworker/u4:1+events_unbound	11:41:03	1
1695585	99	95	87,5	cyclictest	1824827	-21	kworker/u4:1+events_unbound	11:41:03	1
1695584	99	94	89,3	cyclictest	1696824	-21	kworker/u4:8+events_unbound	08:05:34	0
1695584	99	94	85,7	cyclictest	1749764	-21	kworker/u4:15+events_unbound	09:45:58	0
1695585	99	93	88,3	cyclictest	1721408	-21	kworker/u4:5+events_unbound	09:10:45	1
1695584	99	92	85,5	cyclictest	1722689	-21	kworker/u4:7+events_unbound	08:55:50	0
1695584	99	89	74,6	cyclictest	1696823	-21	kworker/u4:7+events_unbound	08:30:38	0
1695584	99	88	82,4	cyclictest	1859338	-21	kworker/u4:7+events_unbound	12:21:30	0
1695584	99	86	78,6	cyclictest	1778714	-21	kworker/u4:6+events_unbound	11:21:02	0
1695584	99	86	77,6	cyclictest	1693059	-21	kworker/u4:5+events_unbound	07:15:00	0
1695585	99	84	75,6	cyclictest	1701984	-21	kworker/u4:16+events_unbound	07:45:36	1
1695585	99	82	71,8	cyclictest	1691841	-21	kworker/u4:3+events_unbound	07:10:21	1
1695584	99	81	72,7	cyclictest	1749766	-21	kworker/u4:16+events_unbound	09:59:37	0
1695585	99	78	64,11	cyclictest	1700703	-21	kworker/u4:13+events_unbound	08:15:40	1
1695585	99	76	66,7	cyclictest	1859336	-21	kworker/u4:4+events_unbound	12:16:30	1
1695584	99	76	68,6	cyclictest	1814409	-21	kworker/u4:9+events_unbound	11:16:00	0
1695585	99	75	65,7	cyclictest	1714891	-21	kworker/u4:1+events_unbound	08:45:42	1
1695584	99	74	65,7	cyclictest	1793065	-21	kworker/u4:4+events_unbound	11:05:58	0
1695585	99	73	66,5	cyclictest	1767908	-21	kworker/u4:10+events_unbound	10:11:04	1
1695584	99	73	65,6	cyclictest	1789494	-21	kworker/u4:10+events_unbound	10:40:57	0
1695584	99	72	57,6	cyclictest	1691840	-21	kworker/u4:2+events_unbound	08:20:41	0
1695585	99	71	64,5	cyclictest	1696824	-21	kworker/u4:8+events_unbound	07:50:34	1
1695585	99	71	31,11	cyclictest	1759231	-21	ntpq	09:55:31	1
1695584	99	71	64,5	cyclictest	1704575	-21	kworker/u4:19+events_unbound	08:10:38	0
1695585	99	70	62,6	cyclictest	1742937	-21	kworker/u4:7+events_unbound	09:35:50	1
1695585	99	70	62,6	cyclictest	1742937	-21	kworker/u4:7+events_unbound	09:35:50	1
1695585	99	70	61,6	cyclictest	1851309	-21	kworker/u4:11+events_unbound	12:06:07	1
1695584	99	70	62,6	cyclictest	1732412	-21	kworker/u4:13+events_unbound	09:40:51	0
1695585	99	69	60,7	cyclictest	1730079	-21	apt-get	09:15:07	1
1695585	99	69	30,12	cyclictest	1824929	-21	ssh	11:27:05	1
1695584	99	69	62,5	cyclictest	1824830	-21	kworker/u4:5+events_unbound	11:41:23	0
1695584	99	69	62,5	cyclictest	1824830	-21	kworker/u4:5+events_unbound	11:41:23	0
1695584	99	69	61,6	cyclictest	1691840	-21	kworker/u4:2+events_unbound	09:15:47	0
1695585	99	67	31,13	cyclictest	1750297	-21	ssh	09:43:13	1
1695585	99	67	27,13	cyclictest	1783019	-21	ssh	10:28:09	1
1695585	99	67	26,16	cyclictest	1753883	-21	ssh	09:48:39	1
1695585	99	67	26,13	cyclictest	1764676	-21	ssh	10:03:09	1
1695585	99	67	15,40	cyclictest	1808562	-21	ssh	11:05:19	1
1695585	99	66	34,9	cyclictest	1870916	-21	ssh	12:25:57	1
1695585	99	66	28,10	cyclictest	1880619	-21	ssh	12:37:43	1
1695585	99	66	25,17	cyclictest	1740261	-21	ssh	09:29:22	1
1695585	99	66	25,14	cyclictest	1845021	-21	ssh	11:54:22	1
1695585	99	66	24,15	cyclictest	1847129	-21	ssh	11:55:55	1
1695585	99	65	57,6	cyclictest	1775343	-21	kworker/u4:0+events_unbound	10:20:53	1
1695585	99	65	28,11	cyclictest	1818914	-21	ssh	11:19:34	1
1695585	99	65	27,14	cyclictest	1832231	-21	ssh	11:37:28	1
1695585	99	65	26,14	cyclictest	1702830	-21	ntpq	07:35:33	1
1695585	99	65	26,11	cyclictest	1796099	-21	ssh	10:45:57	1
1695585	99	65	25,15	cyclictest	1800532	-21	ssh	10:53:19	1
1695585	99	65	25,14	cyclictest	1768323	-21	ssh	10:08:19	1
1695585	99	65	25,13	cyclictest	1815441	-21	ssh	11:14:51	1
1695585	99	65	25,11	cyclictest	1758103	-21	ssh	09:54:38	1
1695585	99	65	24,15	cyclictest	1866985	-21	ssh	12:21:30	1
1695585	99	65	24,14	cyclictest	1790202	-21	ssh	10:38:40	1
1695584	99	65	58,5	cyclictest	1708419	-21	kworker/u4:9+events_unbound	08:25:43	0
1695585	99	64	27,10	cyclictest	1807293	-21	ssh	11:02:58	1
1695585	99	64	27,10	cyclictest	1776283	-21	ssh	10:19:20	1
1695585	99	64	26,11	cyclictest	1877537	-21	ssh	12:34:42	1
1695585	99	64	25,15	cyclictest	1852167	-21	ssh	12:03:13	1
1695585	99	64	25,10	cyclictest	1736078	-21	ssh	09:22:51	1
1695584	99	64	56,6	cyclictest	1746566	-21	kworker/u4:14+events_unbound	09:51:00	0
1695585	99	63	54,6	cyclictest	1817598	-21	kworker/u4:15+events_unbound	11:46:23	1
1695585	99	63	25,11	cyclictest	1827863	-21	ssh	11:31:03	1
1695584	99	63	49,5	cyclictest	1693058	-21	kworker/u4:4+events_unbound	07:25:01	0
1695585	99	62	55,5	cyclictest	1857473	-21	/usr/sbin/munin	12:10:15	1
1695585	99	62	26,13	cyclictest	1700318	-21	/usr/sbin/munin	07:25:36	1
1695585	99	62	26,12	cyclictest	1793788	-21	ssh	10:43:34	1
1695585	99	62	24,14	cyclictest	1786809	-21	ssh	10:33:52	1
1695585	99	62	24,13	cyclictest	1822157	-21	ssh	11:23:49	1
1695585	99	60	51,7	cyclictest	1716170	-21	kworker/u4:4+events_unbound	09:00:49	1
1695585	99	60	25,10	cyclictest	1697573	-21	ntpq	07:15:26	1
1695585	99	60	23,23	cyclictest	0	-21	swapper/1	10:55:35	1
1695584	99	60	52,6	cyclictest	1835865	-21	kworker/u4:4+events_unbound	11:56:06	0
1695584	99	59	53,5	cyclictest	1760474	-21	kworker/u4:3+events_unbound	10:21:05	0
1695585	99	58	48,8	cyclictest	1695514	-21	kworker/u4:0+events_unbound	07:30:31	1
1695585	99	56	24,9	cyclictest	1714391	-21	ntpq	08:20:32	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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