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 Aug 09, 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
1394138	99	103	95,6	cyclictest	1520874	-21	kworker/u4:17+events_unbound	23:12:48	0
1394138	99	98	89,7	cyclictest	1427972	-21	kworker/u4:1+events_unbound	21:17:25	0
1394139	99	97	78,6	cyclictest	1406949	-21	kworker/u4:7+events_unbound	21:37:32	1
1394138	99	97	90,5	cyclictest	1454769	-21	kworker/u4:2+events_unbound	21:47:36	0
1394139	99	96	77,6	cyclictest	1564972	-21	kworker/u4:6+events_unbound	00:08:00	1
1394139	99	95	88,5	cyclictest	1481075	-21	kworker/u4:13+events_unbound	22:17:41	1
1394139	99	95	88,5	cyclictest	1468281	-21	kworker/u4:12+events_unbound	21:57:39	1
1394139	99	95	88,5	cyclictest	1468281	-21	kworker/u4:12+events_unbound	21:57:39	1
1394138	99	93	86,5	cyclictest	1403140	-21	kworker/u4:1+events_unbound	19:47:10	0
1394138	99	93	84,6	cyclictest	1406949	-21	kworker/u4:7+events_unbound	20:12:14	0
1394138	99	91	84,5	cyclictest	1481072	-21	kworker/u4:6+events_unbound	22:12:40	0
1394138	99	88	81,5	cyclictest	1413458	-21	kworker/u4:12+events_unbound	20:37:19	0
1394139	99	87	81,4	cyclictest	1383974	-21	kworker/u4:3+events_unbound	20:22:15	1
1394138	99	85	78,5	cyclictest	1406950	-21	kworker/u4:9+events_unbound	20:57:21	0
1394138	99	85	77,6	cyclictest	1392870	-21	kworker/u4:0+events_unbound	19:37:08	0
1394138	99	85	77,6	cyclictest	1378863	-21	kworker/u4:4+events_unbound	19:42:09	0
1394138	99	82	76,4	cyclictest	1529837	-21	kworker/u4:1+events_unbound	23:07:48	0
1394138	99	81	74,5	cyclictest	1396649	-21	kworker/u4:10+events_unbound	19:52:11	0
1394139	99	80	73,5	cyclictest	1512556	-21	kworker/u4:5+events_unbound	22:47:47	1
1394138	99	78	70,6	cyclictest	1412157	-21	kworker/u4:0+events_unbound	20:47:19	0
1394139	99	77	70,5	cyclictest	1381433	-21	kworker/u4:13+events_unbound	19:32:06	1
1394138	99	76	68,6	cyclictest	1412158	-21	kworker/u4:1+events_unbound	20:32:18	0
1394138	99	76	68,6	cyclictest	1396649	-21	kworker/u4:10+events_unbound	20:27:17	0
1394138	99	75	68,5	cyclictest	1392870	-21	kworker/u4:0+events_unbound	19:12:04	0
1394139	99	74	61,5	cyclictest	1413458	-21	kworker/u4:12+events_unbound	21:25:03	1
1394138	99	74	62,6	cyclictest	1556041	-21	kworker/u4:9+events_unbound	23:40:03	0
1394139	99	71	56,5	cyclictest	1499087	-21	kworker/u4:13+events_unbound	22:35:03	1
1394139	99	68	59,7	cyclictest	1395358	-21	kworker/u4:7+events_unbound	19:20:01	1
1394138	99	67	52,7	cyclictest	256	50	irq/23-42890000.ethernet	19:10:00	0
1394139	99	65	52,10	cyclictest	0	-21	swapper/1	23:50:14	1
1394139	99	64	57,5	cyclictest	1543301	-21	kworker/u4:5+events_unbound	23:27:54	1
1394139	99	64	56,6	cyclictest	1413457	-21	kworker/u4:8+events_unbound	20:52:20	1
1394139	99	63	56,5	cyclictest	1423747	-21	kworker/u4:11+events_unbound	21:07:23	1
1394138	99	63	54,6	cyclictest	0	-21	swapper/0	20:20:41	0
1394139	99	61	54,5	cyclictest	1569461	-21	kworker/u4:15+events_unbound	23:57:58	1
1394139	99	61	40,6	cyclictest	1403141	-21	kworker/u4:2+events_unbound	20:30:01	1
1394139	99	61	38,13	cyclictest	1516374	-21	kworker/u4:8+events_unbound	22:56:13	1
1394138	99	61	48,9	cyclictest	1521110	-21	ssh	22:57:19	0
1394139	99	60	51,6	cyclictest	0	-21	swapper/1	23:30:37	1
1394138	99	60	37,20	cyclictest	1483616	-21	df	22:15:18	0
1394139	99	59	53,4	cyclictest	1481073	-21	kworker/u4:7+events_unbound	22:15:02	1
1394139	99	58	41,6	cyclictest	1383974	-21	kworker/u4:3+events_unbound	20:16:59	1
1394139	99	57	50,5	cyclictest	1569461	-21	kworker/u4:15+events_unbound	00:00:03	1
1394138	99	57	36,19	cyclictest	1515436	-21	timerandwakeup	22:50:39	0
1394139	99	56	42,5	cyclictest	1400573	-21	kworker/u4:16+events_unbound	19:57:12	1
1394139	99	56	38,7	cyclictest	1525388	-21	kworker/u4:0+events_unbound	23:03:44	1
1394138	99	56	44,7	cyclictest	1493906	-21	ssh	22:26:11	0
1394139	99	55	39,6	cyclictest	1534314	-21	kworker/u4:7+events_unbound	23:17:45	1
1394139	99	55	38,7	cyclictest	1560543	-21	kworker/u4:4+events_unbound	23:44:47	1
1394138	99	55	47,6	cyclictest	624	-21	munin-node	00:16:11	0
1394138	99	55	46,7	cyclictest	1454773	-21	kworker/u4:9+events_unbound	21:43:45	0
1394139	99	54	40,6	cyclictest	1427972	-21	kworker/u4:1+events_unbound	21:20:03	1
1394139	99	54	38,6	cyclictest	1396649	-21	kworker/u4:10+events_unbound	19:55:01	1
1394138	99	54	45,7	cyclictest	317	-21	systemd-journal	21:37:31	0
1394138	99	54	44,8	cyclictest	1543517	-21	systemd	23:22:51	0
1394138	99	54	39,10	cyclictest	1485580	-21	kworker/u4:4-rpciod	22:30:34	0
1394139	99	53	38,12	cyclictest	0	-21	swapper/1	00:10:31	1
1394139	99	53	38,12	cyclictest	0	-21	swapper/1	00:10:30	1
1394138	99	53	43,6	cyclictest	0	-21	swapper/0	21:30:33	0
1394138	99	53	42,7	cyclictest	1505615	-21	aten_r7power_en	22:40:16	0
1394138	99	53	41,9	cyclictest	53	-21	kswapd0	23:45:14	0
1394138	99	53	30,19	cyclictest	0	-21	swapper/0	21:50:25	0
1394139	99	52	45,5	cyclictest	1453190	-21	sshd	21:40:33	1
1394139	99	52	45,5	cyclictest	1410866	-21	kworker/u4:18+events_unbound	20:45:02	1
1394139	99	52	45,5	cyclictest	1396630	-21	kworker/u4:9+events_unbound	19:22:06	1
1394139	99	52	37,7	cyclictest	1427973	-21	kworker/u4:2+events_unbound	21:16:45	1
1394139	99	52	36,6	cyclictest	1490095	-21	kworker/u4:11+events_unbound	22:25:41	1
1394138	99	52	6,37	cyclictest	1509924	-21	ssh	22:45:10	0
1394138	99	52	44,6	cyclictest	1438617	-21	idleruntime-cro	21:25:01	0
1394138	99	52	40,9	cyclictest	1537521	-21	timerwakeupswit	23:15:39	0
1394138	99	52	30,12	cyclictest	1600400	-21	kworker/u4:2+events_unbound	00:27:12	0
1394139	99	51	8,39	cyclictest	1471046	-21	ssh	22:00:35	1
1394139	99	51	44,5	cyclictest	1578480	-21	kworker/u4:5+events_unbound	00:20:01	1
1394139	99	51	44,5	cyclictest	1416521	-21	fschecks_time	20:35:19	1
1394139	99	51	44,5	cyclictest	1408241	-21	kworker/u4:14+events_unbound	20:05:00	1
1394139	99	51	41,7	cyclictest	0	-21	swapper/1	23:45:15	1
1394139	99	51	35,6	cyclictest	1454772	-21	kworker/u4:8+events_unbound	22:05:23	1
1394138	99	51	42,6	cyclictest	1577374	-21	sed	00:00:49	0
1394138	99	51	42,6	cyclictest	1396933	-21	/usr/sbin/munin	19:20:11	0
1394138	99	51	38,10	cyclictest	1425050	-21	sh	21:10:01	0
1394139	99	50	40,8	cyclictest	1444376	-21	processes	21:30:37	1
1394139	99	50	39,5	cyclictest	1595890	-21	kworker/u4:4+events_unbound	00:22:44	1
1394139	99	50	38,5	cyclictest	1408241	-21	kworker/u4:14+events_unbound	20:10:01	1
1394138	99	50	42,5	cyclictest	1419855	-21	apt-get	20:50:09	0
1394138	99	50	42,5	cyclictest	0	-21	swapper/0	23:30:19	0
1394139	99	49	40,7	cyclictest	0	-21	swapper/1	23:20:29	1
1394139	99	49	40,6	cyclictest	1394135	-21	cyclictest	21:50:04	1
1394139	99	49	31,6	cyclictest	1534315	-21	kworker/u4:8+events_unbound	23:37:56	1
1394138	99	49	42,5	cyclictest	1389217	-21	kworker/u4:1+events_unbound	19:15:23	0
1394138	99	49	37,8	cyclictest	1441275	-21	ssh	21:27:14	0
1394139	99	48	40,5	cyclictest	1505612	-21	/usr/sbin/munin	22:40:17	1
1394139	99	48	40,5	cyclictest	1423409	-21	sendmail_mailqu	21:00:37	1
1394139	99	48	40,5	cyclictest	0	-21	swapper/1	00:25:16	1
1394138	99	48	4,36	cyclictest	1585541	-21	ssh	00:10:25	0
1394138	99	48	4,36	cyclictest	1585541	-21	ssh	00:10:25	0
1394138	99	48	39,6	cyclictest	1466260	-21	gltestperf	21:55:22	0
1394138	99	48	39,6	cyclictest	1466260	-21	gltestperf	21:55:21	0
1394138	99	48	38,5	cyclictest	1595888	-21	kworker/u4:1+events_unbound	00:23:50	0
1394138	99	48	37,8	cyclictest	1608140	-21	switchtime	00:35:41	0
1394138	99	48	36,10	cyclictest	1468281	-21	kworker/u4:12-rpciod	22:00:42	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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