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 highest latencies:

System rack7slot2.osadl.org (updated Tue Feb 10, 2026 00:44:08)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
1491539	99	103	96,5	cyclictest	1489067	-21	kworker/u4:8+events_unbound	19:17:14	0
1491539	99	103	94,7	cyclictest	1629046	-21	kworker/u4:5+events_unbound	23:32:50	0
1491539	99	95	88,5	cyclictest	1504200	-21	kworker/u4:16+events_unbound	19:57:17	0
1491539	99	92	74,13	cyclictest	54	-21	kswapd0	21:35:08	0
1491539	99	85	77,6	cyclictest	1646721	-21	kworker/u4:6+events_unbound	23:42:51	0
1491539	99	84	76,6	cyclictest	1629046	-21	kworker/u4:5+events_unbound	23:17:48	0
1491539	99	83	76,5	cyclictest	1500433	-21	kworker/u4:8+events_unbound	19:52:17	0
1491539	99	81	64,15	cyclictest	1633470	-21	kworker/u4:10+events_unbound	23:25:01	0
1491539	99	80	72,6	cyclictest	1620872	-21	kworker/u4:8+events_unbound	23:02:47	0
1491539	99	80	72,6	cyclictest	1495302	-21	kworker/u4:12+events_unbound	20:07:19	0
1491539	99	77	71,5	cyclictest	1489066	-21	kworker/u4:5+events_unbound	19:27:13	0
1491540	99	75	68,5	cyclictest	1672422	-21	kworker/u4:5+events_unbound	00:12:54	1
1491539	99	73	66,5	cyclictest	1504200	-21	kworker/u4:16+events_unbound	20:17:19	0
1491539	99	73	65,6	cyclictest	1603262	-21	kworker/u4:6+events_unbound	23:07:48	0
1491540	99	71	39,30	cyclictest	1584125	-21	interrupts	22:20:23	1
1491540	99	71	37,32	cyclictest	1670672	-21	gltestperf	00:00:21	1
1491540	99	70	63,5	cyclictest	1518102	-21	kworker/u4:6+events_unbound	20:57:25	1
1491540	99	70	35,31	cyclictest	0	-21	swapper/1	23:50:29	1
1491540	99	70	32,35	cyclictest	0	-21	swapper/1	22:10:32	1
1491540	99	70	29,38	cyclictest	0	-21	swapper/1	21:40:15	1
1491540	99	70	1,24	cyclictest	1597510	-21	ssh	22:35:39	1
1491540	99	69	2,22	cyclictest	1696978	-21	ntpq	00:30:34	1
1491539	99	68	54,7	cyclictest	1603265	-21	kworker/u4:12+events_unbound	22:50:59	0
1491540	99	67	6,12	cyclictest	1557104	-21	modprobe	21:50:01	1
1491540	99	67	4,13	cyclictest	1610263	-21	ntpq	22:50:25	1
1491540	99	67	33,31	cyclictest	0	-21	swapper/1	23:00:40	1
1491540	99	67	30,34	cyclictest	0	-21	swapper/1	22:30:32	1
1491540	99	67	29,10	cyclictest	1674857	-21	grep	00:05:18	1
1491540	99	67	26,5	cyclictest	0	-21	swapper/1	22:45:27	1
1491539	99	67	26,34	cyclictest	0	-21	swapper/0	00:35:09	0
1491540	99	66	32,32	cyclictest	1700586	-21	aten_r7power_cu	00:35:20	1
1491540	99	66	3,17	cyclictest	1502488	-21	ntpq	19:50:29	1
1491540	99	66	30,33	cyclictest	1538472	-21	sshd	21:28:14	1
1491540	99	66	28,34	cyclictest	0	-21	swapper/1	23:55:30	1
1491540	99	66	28,34	cyclictest	0	-21	swapper/1	22:15:24	1
1491540	99	66	26,37	cyclictest	1561472	-21	sh	21:55:01	1
1491540	99	66	26,36	cyclictest	1508095	-21	latency_hist	20:15:02	1
1491539	99	66	63,2	cyclictest	1510539	-21	kworker/u4:6+events_unbound	20:22:21	0
1491540	99	65	52,8	cyclictest	37	-21	kcompactd0	23:15:19	1
1491540	99	65	34,28	cyclictest	0	-21	swapper/1	20:30:22	1
1491540	99	65	28,32	cyclictest	0	-21	swapper/1	22:00:30	1
1491540	99	65	21,6	cyclictest	0	-21	swapper/1	21:39:07	1
1491539	99	65	58,5	cyclictest	1646721	-21	kworker/u4:6+events_unbound	23:37:51	0
1491539	99	65	57,6	cyclictest	1529130	-21	kworker/u4:8+events_unbound	21:21:43	0
1491540	99	64	30,31	cyclictest	0	-21	swapper/1	21:15:23	1
1491539	99	64	57,5	cyclictest	1663632	-21	kworker/u4:4+events_unbound	00:00:03	0
1491539	99	64	19,15	cyclictest	54	-21	kswapd0	22:25:06	0
1491540	99	63	28,4	cyclictest	0	-21	swapper/1	22:05:27	1
1491540	99	63	27,3	cyclictest	0	-21	swapper/1	21:12:17	1
1491540	99	63	26,5	cyclictest	0	-21	swapper/1	22:27:41	1
1491540	99	63	24,36	cyclictest	0	-21	swapper/1	19:30:21	1
1491540	99	62	33,25	cyclictest	0	-21	swapper/1	23:25:30	1
1491540	99	62	30,4	cyclictest	1509275	-21	kworker/u4:8	20:20:01	1
1491540	99	62	24,5	cyclictest	0	-21	swapper/1	20:50:14	1
1491539	99	62	29,27	cyclictest	1266729	-21	kworker/u4:1+rpciod	19:10:00	0
1491540	99	61	3,22	cyclictest	1692515	-21	/usr/sbin/munin	00:25:25	1
1491540	99	61	3,20	cyclictest	1684143	-21	ssh	00:15:34	1
1491540	99	61	28,30	cyclictest	0	-21	swapper/1	23:05:24	1
1491540	99	61	24,10	cyclictest	0	-21	swapper/1	19:10:21	1
1491539	99	61	52,7	cyclictest	1692270	-21	fschecks_time	00:25:22	0
1491539	99	61	10,15	cyclictest	1596602	-21	/usr/sbin/munin	22:35:11	0
1491540	99	60	51,7	cyclictest	1495294	-21	systemd	19:22:13	1
1491540	99	60	28,5	cyclictest	1514343	-21	idleruntime-cro	20:39:59	1
1491540	99	60	28,28	cyclictest	0	-21	swapper/1	00:20:32	1
1491540	99	60	25,4	cyclictest	1542862	-21	sh	21:33:14	1
1491540	99	60	25,4	cyclictest	0	-21	swapper/1	20:05:34	1
1491539	99	60	52,6	cyclictest	1676784	-21	kworker/u4:2+events_unbound	00:12:55	0
1491539	99	60	51,7	cyclictest	1593194	-21	processes	22:30:36	0
1491540	99	59	25,6	cyclictest	0	-21	swapper/1	22:55:39	1
1491540	99	59	24,31	cyclictest	1500433	-21	kworker/u4:8+rpciod	20:20:15	1
1491539	99	59	52,5	cyclictest	1510533	-21	kworker/u4:0+events_unbound	20:32:21	0
1491540	99	58	7,18	cyclictest	1637441	-21	ssh	23:21:26	1
1491540	99	58	34,22	cyclictest	1555240	-21	kworker/u4:10-rpciod	21:55:28	1
1491540	99	58	29,26	cyclictest	0	-21	swapper/1	23:40:36	1
1491540	99	58	27,5	cyclictest	0	-21	swapper/1	21:06:03	1
1491540	99	58	26,3	cyclictest	0	-21	swapper/1	23:30:14	1
1491540	99	58	25,4	cyclictest	1629046	-21	kworker/u4:5-rpciod	23:35:34	1
1491539	99	58	50,6	cyclictest	1494020	-21	kworker/u4:6+events_unbound	19:22:14	0
1491540	99	57	24,6	cyclictest	0	-21	swapper/1	20:00:49	1
1491539	99	57	54,2	cyclictest	1654865	-21	kworker/u4:9+events_unbound	23:51:43	0
1491539	99	57	4,7	cyclictest	1499101	-21	apt-get	19:40:05	0
1491539	99	57	42,12	cyclictest	1553362	-21	fschecks_count	21:45:19	0
1491540	99	56	26,5	cyclictest	0	-21	swapper/1	19:55:35	1
1491540	99	56	24,6	cyclictest	1500264	-21	timerwakeupswit	19:40:41	1
1491539	99	56	49,5	cyclictest	1642314	-21	kworker/u4:4+events_unbound	23:28:58	0
1491540	99	55	27,24	cyclictest	0	-21	swapper/1	19:25:33	1
1491539	99	55	42,10	cyclictest	1674501	-21	/usr/sbin/munin	00:05:33	0
1491539	99	55	36,17	cyclictest	1700266	-21	latency_hist	00:35:01	0
1491540	99	54	25,5	cyclictest	0	-21	swapper/1	22:40:25	1
1491539	99	54	46,6	cyclictest	1688161	-21	/usr/sbin/munin	00:20:25	0
1491539	99	54	46,5	cyclictest	0	-21	swapper/0	22:20:16	0
1491539	99	52	44,6	cyclictest	1603264	-21	kworker/u4:9+events_unbound	22:46:43	0
1491539	99	51	41,8	cyclictest	1541128	-21	unixbench_multi	21:30:39	0
1491539	99	50	41,7	cyclictest	1527797	-21	/usr/sbin/munin	21:15:38	0
1491539	99	50	38,10	cyclictest	1564106	-21	kworker/u4:4+events_unbound	22:00:43	0
1491540	99	49	38,8	cyclictest	1511420	-21	ps	20:25:37	1
1491539	99	49	41,6	cyclictest	1548763	-21	aten2__	21:40:17	0
1491539	99	49	41,6	cyclictest	1536751	-21	/usr/sbin/munin	21:25:41	0
1491539	99	49	38,6	cyclictest	1666771	-21	ssh	23:55:37	0
1491539	99	49	36,6	cyclictest	1510538	-21	kworker/u4:5+events_unbound	20:42:15	0
1491539	99	49	33,14	cyclictest	1514369	-21	sendmail	20:40:00	0
1491539	99	49	29,7	cyclictest	1559662	-21	kworker/u4:7+events_unbound	21:53:54	0
1491539	99	48	41,5	cyclictest	1507124	-21	df_abs	20:10:17	0
1491539	99	48	40,6	cyclictest	1672422	-21	kworker/u4:5+events_unbound	00:15:03	0
1491539	99	48	39,6	cyclictest	1601131	-21	aten_r7power_vo	22:40:17	0
1491539	99	48	37,7	cyclictest	1661290	-21	modprobe	23:49:59	0
1491539	99	48	36,8	cyclictest	1510538	-21	kworker/u4:5-rpciod	21:05:19	0
1491540	99	47	39,6	cyclictest	0	-21	swapper/1	21:22:29	1
1491540	99	47	38,7	cyclictest	1515588	-21	systemd	20:42:21	1
1491539	99	47	41,4	cyclictest	1510533	-21	kworker/u4:0+events_unbound	21:10:03	0
1491539	99	47	39,6	cyclictest	1577374	-21	kworker/u4:2+events_unbound	22:16:00	0
1491539	99	47	39,6	cyclictest	1492754	-21	kworker/u4:10+events_unbound	19:34:45	0
1491540	99	46	39,5	cyclictest	1493189	-21	fschecks_count	19:15:19	1
1491539	99	46	40,4	cyclictest	0	-21	swapper/0	21:02:26	0
1491539	99	46	35,8	cyclictest	1612041	-21	kworker/u4:1-nfsiod	22:55:34	0
1491539	99	46	28,7	cyclictest	1629047	-21	kworker/u4:7+events_unbound	23:14:58	0
1491540	99	45	38,5	cyclictest	1499190	-21	date	19:40:01	1
1491539	99	45	38,5	cyclictest	1064	-21	lldpd	19:37:51	0
1491539	99	45	37,6	cyclictest	1518100	-21	kworker/u4:1+events_unbound	20:54:42	0
1491539	99	45	36,7	cyclictest	1500898	-21	fschecks_count	19:45:21	0
1491539	99	44	34,7	cyclictest	1504482	-21	aten_r7power_en	20:00:14	0
1491540	99	42	37,3	cyclictest	1510538	-21	kworker/u4:5+events_unbound	21:05:01	1
1491540	99	42	35,5	cyclictest	1627122	-21	aten_r7power_vo	23:10:19	1
1491540	99	42	34,5	cyclictest	1494019	-21	kworker/u4:4-rpciod	19:45:37	1
1491540	99	42	32,7	cyclictest	0	-21	swapper/1	23:45:12	1
1491539	99	42	35,5	cyclictest	1575809	-21	find	22:10:37	0
1491539	99	42	35,5	cyclictest	1559661	-21	kworker/u4:6-rpciod	21:55:23	0
1491539	99	42	32,7	cyclictest	1518431	-21	aten_r7power_vo	20:55:18	0
1491539	99	41	34,5	cyclictest	1555238	-21	kworker/u4:8-nfsiod	22:05:20	0
1491540	99	40	29,9	cyclictest	0	-21	swapper/1	20:45:19	1
1491539	99	40	36,3	cyclictest	1510535	-21	kworker/u4:2+events_unbound	20:27:15	0
1491539	99	40	32,6	cyclictest	1491750	-21	aten_r7power_en	19:10:15	0
1491539	99	38	29,4	cyclictest	0	-21	swapper/0	20:45:25	0
1491540	99	28	19,6	cyclictest	1491585	-21	latency_hist	19:10:01	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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