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 Jun 21, 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
1430949	99	105	92,5	cyclictest	1464673	-21	kworker/u4:10+events_unbound	21:30:00	0
1430949	99	102	94,6	cyclictest	1634841	-21	kworker/u4:14+events_unbound	00:28:25	0
1430949	99	101	93,6	cyclictest	1578316	-21	kworker/u4:2+events_unbound	23:33:08	0
1430949	99	101	86,6	cyclictest	1578316	-21	kworker/u4:2+events_unbound	23:23:08	0
1430949	99	100	93,5	cyclictest	1591606	-21	kworker/u4:5+events_unbound	23:43:14	0
1430950	99	99	90,7	cyclictest	1516737	-21	kworker/u4:7+events_unbound	22:12:41	1
1430949	99	98	91,5	cyclictest	1613256	-21	kworker/u4:8+events_unbound	00:33:27	0
1430949	99	95	86,7	cyclictest	1613254	-21	kworker/u4:5+events_unbound	00:08:24	0
1430949	99	94	84,7	cyclictest	1428447	-21	kworker/u4:3+events_unbound	21:17:29	0
1430949	99	94	79,6	cyclictest	1436026	-21	kworker/u4:18+events_unbound	20:50:00	0
1430949	99	94	79,6	cyclictest	1436026	-21	kworker/u4:18+events_unbound	20:50:00	0
1430949	99	92	84,6	cyclictest	1495206	-21	kworker/u4:6+events_unbound	22:02:41	0
1430949	99	90	83,5	cyclictest	1432181	-21	kworker/u4:14+events_unbound	20:57:21	0
1430949	99	89	82,5	cyclictest	1490760	-21	kworker/u4:2+events_unbound	22:42:56	0
1430949	99	86	78,6	cyclictest	1432167	-21	kworker/u4:9+events_unbound	21:10:01	0
1430949	99	85	78,5	cyclictest	1538894	-21	kworker/u4:4+events_unbound	22:37:49	0
1430949	99	85	78,5	cyclictest	1495207	-21	kworker/u4:7+events_unbound	21:47:36	0
1430949	99	85	78,5	cyclictest	1458072	-21	kworker/u4:13+events_unbound	21:02:24	0
1430949	99	85	77,6	cyclictest	1495208	-21	kworker/u4:9+events_unbound	22:32:47	0
1430949	99	84	76,6	cyclictest	1490762	-21	kworker/u4:5+events_unbound	22:22:45	0
1430949	99	81	76,3	cyclictest	1569411	-21	kworker/u4:0+events_unbound	23:28:07	0
1430949	99	80	73,5	cyclictest	1534458	-21	kworker/u4:7+events_unbound	22:47:57	0
1430949	99	79	73,5	cyclictest	1495209	-21	kworker/u4:10+events_unbound	21:57:37	0
1430949	99	76	58,7	cyclictest	53	-21	kswapd0	23:15:09	0
1430949	99	76	58,6	cyclictest	1547821	-21	kworker/u4:10+events_unbound	22:52:58	0
1430949	99	74	67,5	cyclictest	1529990	-21	kworker/u4:1+events_unbound	22:27:46	0
1430949	99	72	65,5	cyclictest	1507871	-21	kworker/u4:13+events_unbound	22:17:44	0
1430949	99	70	62,6	cyclictest	1430883	-21	kworker/u4:4+events_unbound	20:17:15	0
1430949	99	70	44,15	cyclictest	1486296	-21	kworker/u4:7+events_unbound	21:41:45	0
1430950	99	69	57,9	cyclictest	53	-21	kswapd0	22:50:01	1
1430950	99	69	57,10	cyclictest	53	-21	kswapd0	21:35:00	1
1430949	99	69	51,8	cyclictest	1454147	-21	kworker/u4:8+events_unbound	20:40:02	0
1430949	99	69	50,6	cyclictest	1432182	-21	kworker/u4:15+events_unbound	19:20:08	0
1430949	99	68	61,5	cyclictest	1626577	-21	kworker/u4:0+events_unbound	00:38:28	0
1430949	99	68	61,5	cyclictest	1430882	-21	kworker/u4:1+events_unbound	19:32:09	0
1430949	99	66	46,7	cyclictest	1613255	-21	kworker/u4:6+events_unbound	00:10:59	0
1430949	99	66	46,7	cyclictest	1613255	-21	kworker/u4:6+events_unbound	00:10:58	0
1430949	99	66	14,37	cyclictest	1430947	-21	cyclictest	19:09:59	0
1430950	99	64	44,12	cyclictest	0	-21	swapper/1	21:45:26	1
1430950	99	63	3,52	cyclictest	1585502	-21	ssh	23:30:25	1
1430949	99	60	42,8	cyclictest	1551617	-21	kworker/u4:12+events_unbound	22:58:59	0
1430950	99	59	53,4	cyclictest	1430884	-21	kworker/u4:6+events_unbound	20:10:02	1
1430950	99	59	47,9	cyclictest	1541600	-21	kernelversion	22:40:22	1
1430949	99	59	52,5	cyclictest	1510942	-21	if_err_eth0	22:05:23	0
1430949	99	59	46,10	cyclictest	0	-21	swapper/0	20:25:26	0
1430950	99	58	39,13	cyclictest	1532931	-21	ssh	22:30:28	1
1430949	99	58	50,6	cyclictest	1515907	-21	/usr/sbin/munin	22:10:43	0
1430949	99	58	44,6	cyclictest	1430882	-21	kworker/u4:1+events_unbound	19:10:02	0
1430949	99	58	40,6	cyclictest	1481831	-21	kworker/u4:1+events_unbound	21:35:02	0
1430949	99	58	37,7	cyclictest	1547176	-21	kworker/u4:9+events_unbound	23:06:14	0
1430950	99	57	44,11	cyclictest	1550304	-21	if_err_eth0	22:50:22	1
1430950	99	57	23,13	cyclictest	1629557	-21	processes	00:20:39	1
1430949	99	57	50,5	cyclictest	1613256	-21	kworker/u4:8+events_unbound	00:02:59	0
1430949	99	57	50,5	cyclictest	1495209	-21	kworker/u4:10+events_unbound	21:50:03	0
1430949	99	57	47,8	cyclictest	1561342	-21	sshd	23:03:01	0
1430949	99	57	23,30	cyclictest	256	50	irq/23-42890000.ethernet	21:10:11	0
1430950	99	56	23,20	cyclictest	0	-21	swapper/1	21:10:42	1
1430949	99	54	46,6	cyclictest	1586522	-21	kworker/u4:9+events_unbound	23:40:02	0
1430949	99	54	40,5	cyclictest	1434757	-21	kworker/u4:17+events_unbound	19:45:46	0
1430950	99	53	45,5	cyclictest	1602865	-21	sh	23:50:21	1
1430950	99	53	44,6	cyclictest	1511337	-21	/usr/sbin/munin	22:05:39	1
1430950	99	53	38,8	cyclictest	1617672	-21	kworker/u4:1-rpciod	00:25:07	1
1430949	99	53	47,5	cyclictest	1415908	-21	kworker/u4:10+events_unbound	19:42:08	0
1430949	99	53	46,5	cyclictest	1622116	-21	kworker/u4:11+events_unbound	00:23:25	0
1430949	99	53	46,5	cyclictest	1432182	-21	kworker/u4:15+events_unbound	20:02:13	0
1430949	99	53	45,6	cyclictest	1453913	-21	/usr/sbin/munin	20:35:36	0
1430950	99	52	45,5	cyclictest	1626577	-21	kworker/u4:0+events_unbound	00:39:00	1
1430950	99	52	45,5	cyclictest	1523699	-21	cpu	22:20:18	1
1430950	99	52	42,7	cyclictest	1617671	-21	kworker/u4:0-xprtiod	00:10:22	1
1430950	99	52	42,7	cyclictest	1617671	-21	kworker/u4:0-xprtiod	00:10:22	1
1430950	99	52	41,8	cyclictest	1637701	-21	fschecks_count	00:30:20	1
1430950	99	52	40,8	cyclictest	1457693	-21	ps	20:50:43	1
1430949	99	52	45,5	cyclictest	1547175	-21	kworker/u4:6+events_unbound	23:15:15	0
1430950	99	51	44,5	cyclictest	1593662	-21	aten_r7power_en	23:40:16	1
1430950	99	51	44,5	cyclictest	1581080	-21	sshd	23:25:23	1
1430950	99	51	42,6	cyclictest	1569413	-21	kworker/u4:3+xprtiod	23:15:08	1
1430950	99	51	16,19	cyclictest	0	-21	swapper/1	22:35:17	1
1430949	99	51	44,5	cyclictest	1449041	-21	kworker/u4:11+events_unbound	20:22:14	0
1430949	99	51	43,6	cyclictest	1578316	-21	kworker/u4:2+events_unbound	23:52:00	0
1430950	99	50	43,5	cyclictest	1504215	-21	sshd	21:57:37	1
1430950	99	50	41,7	cyclictest	1459334	-21	systemd	20:57:21	1
1430950	99	50	40,8	cyclictest	1466807	-21	cpu	21:15:17	1
1430950	99	50	40,8	cyclictest	1452866	-21	systemd	20:32:16	1
1430950	99	50	28,14	cyclictest	1572570	-21	ssh	23:15:40	1
1430949	99	50	44,4	cyclictest	1432179	-21	kworker/u4:12+events_unbound	20:07:13	0
1430949	99	50	32,5	cyclictest	1608783	-21	kworker/u4:0+events_unbound	23:59:00	0
1430950	99	49	39,7	cyclictest	1580291	-21	latency_hist	23:25:02	1
1430949	99	49	41,6	cyclictest	1578317	-21	kworker/u4:3+events_unbound	23:45:19	0
1430949	99	49	40,6	cyclictest	1433472	-21	cron	19:20:00	0
1430949	99	49	29,17	cyclictest	0	-21	swapper/0	00:15:34	0
1430950	99	48	41,5	cyclictest	1555141	-21	ssh	22:55:39	1
1430950	99	48	41,5	cyclictest	1497870	-21	kernelversion	21:50:23	1
1430950	99	47	38,6	cyclictest	1454315	-21	awk	20:40:02	1
1430950	99	47	36,8	cyclictest	1612050	-21	/usr/sbin/munin	00:00:37	1
1430950	99	47	25,18	cyclictest	53	-21	kswapd0	22:25:11	1
1430950	99	46	5,30	cyclictest	1563229	-21	ssh	23:05:19	1
1430950	99	46	39,5	cyclictest	1625969	-21	sshd	00:16:23	1
1430950	99	46	37,6	cyclictest	1460831	-21	/usr/sbin/munin	21:05:14	1
1430950	99	46	37,6	cyclictest	1449091	-21	sendmail	20:19:59	1
1430950	99	46	17,7	cyclictest	0	-21	swapper/1	21:40:16	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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