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 Dec 04, 2025 00:44:07)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
1347825	99	132	123,7	cyclictest	1523195	-21	kworker/u4:3+events_unbound	00:23:14	1
1347825	99	107	100,5	cyclictest	1421811	-21	kworker/u4:17+events_unbound	22:02:07	1
1347824	99	102	97,3	cyclictest	1541253	-21	kworker/u4:15+events_unbound	00:38:23	0
1347825	99	93	84,6	cyclictest	1474697	-21	kworker/u4:3+events_unbound	23:22:29	1
1347825	99	93	84,6	cyclictest	1474697	-21	kworker/u4:3+events_unbound	23:22:28	1
1347824	99	88	79,7	cyclictest	1541253	-21	kworker/u4:15+events_unbound	00:33:59	0
1347824	99	88	79,7	cyclictest	1541253	-21	kworker/u4:15+events_unbound	00:33:58	0
1347824	99	85	75,7	cyclictest	1405891	-21	kworker/u4:16+events_unbound	21:52:05	0
1347825	99	84	76,6	cyclictest	1385263	-21	kworker/u4:17+events_unbound	21:17:01	1
1347824	99	80	71,7	cyclictest	1393521	-21	kworker/u4:1+events_unbound	21:32:02	0
1347824	99	80	70,7	cyclictest	1523193	-21	kworker/u4:1+events_unbound	00:08:36	0
1347824	99	80	30,38	cyclictest	0	-21	swapper/0	23:35:39	0
1347824	99	79	3,46	cyclictest	1500890	-21	apt-get	23:40:18	0
1347824	99	77	28,38	cyclictest	1525496	-21	ld	00:10:33	0
1347824	99	76	66,7	cyclictest	1514604	-21	kworker/u4:7+events_unbound	23:57:24	0
1347824	99	75	32,21	cyclictest	0	-21	swapper/0	22:00:17	0
1347824	99	75	29,43	cyclictest	0	-21	swapper/0	21:05:01	0
1347825	99	74	25,43	cyclictest	27	1	ktimers/1	21:10:12	1
1347825	99	74	25,43	cyclictest	27	1	ktimers/1	21:10:12	1
1347824	99	74	21,29	cyclictest	0	-21	swapper/0	23:10:21	0
1347825	99	73	34,32	cyclictest	1403611	-21	acpi	21:40:12	1
1347825	99	72	62,7	cyclictest	1368615	-21	kworker/u4:22+events_unbound	20:31:55	1
1347825	99	72	38,32	cyclictest	1470819	-21	systemd	23:02:23	1
1347824	99	72	63,6	cyclictest	1434143	-21	kworker/u4:3+events_unbound	22:17:17	0
1347824	99	70	59,7	cyclictest	1425890	-21	kworker/u4:19+events_unbound	22:12:18	0
1347824	99	70	26,41	cyclictest	1401737	-21	kworker/u4:3-rpciod	21:40:20	0
1347824	99	70	19,28	cyclictest	0	-21	swapper/0	22:35:26	0
1347824	99	69	38,27	cyclictest	1389436	-21	kworker/u4:11-rpciod	21:25:29	0
1347824	99	69	36,30	cyclictest	1356776	-21	threads	19:40:37	0
1347825	99	68	38,27	cyclictest	1465413	-21	pluginstate	22:55:39	1
1347824	99	68	59,6	cyclictest	1438286	-21	kworker/u4:1+events_unbound	22:30:02	0
1347825	99	67	2,19	cyclictest	1456461	-21	ssh	22:45:14	1
1347824	99	67	19,26	cyclictest	0	-21	swapper/0	00:24:10	0
1347825	99	66	44,19	cyclictest	1505418	-21	gltestperf	23:45:21	1
1347825	99	66	25,38	cyclictest	1415567	-21	latency_hist	21:55:02	1
1347824	99	66	60,4	cyclictest	1474700	-21	kworker/u4:7+events_unbound	23:27:15	0
1347824	99	66	36,27	cyclictest	1536075	-21	gltestperf	00:25:22	0
1347824	99	66	36,27	cyclictest	1401743	-21	kworker/u4:11-xprtiod	21:45:23	0
1347824	99	66	35,29	cyclictest	1405890	-21	kworker/u4:15-rpciod	21:55:37	0
1347824	99	66	35,29	cyclictest	1405890	-21	kworker/u4:15-rpciod	21:55:36	0
1347824	99	66	35,28	cyclictest	1421811	-21	kworker/u4:17-rpciod	22:20:34	0
1347824	99	66	32,31	cyclictest	1510110	-21	timerwakeupswit	23:50:42	0
1347825	99	65	5,47	cyclictest	1353179	-21	latency_hist	19:30:00	1
1347825	99	65	41,21	cyclictest	1399669	-21	/usr/sbin/munin	21:35:17	1
1347825	99	65	34,28	cyclictest	0	-21	swapper/1	00:00:01	1
1347825	99	65	33,29	cyclictest	0	-21	swapper/1	22:20:30	1
1347824	99	65	21,38	cyclictest	1358320	-21	modprobe	19:50:00	0
1347824	99	65	18,28	cyclictest	0	-21	swapper/0	23:15:29	0
1347825	99	64	4,6	cyclictest	0	-21	swapper/1	21:25:13	1
1347825	99	64	40,22	cyclictest	1527139	-21	sshd	00:13:03	1
1347825	99	64	34,27	cyclictest	0	-21	swapper/1	23:50:42	1
1347825	99	64	34,26	cyclictest	1444032	-21	sh	22:30:02	1
1347825	99	64	3,18	cyclictest	1501652	-21	ssh	23:40:36	1
1347824	99	64	54,7	cyclictest	1346529	-21	kworker/u4:8+events_unbound	19:36:47	0
1347824	99	64	27,33	cyclictest	0	-21	swapper/0	00:00:40	0
1347824	99	64	27,33	cyclictest	0	-21	swapper/0	00:00:39	0
1347824	99	64	21,39	cyclictest	257	50	irq/23-42890000.ethernet	21:05:32	0
1347825	99	63	38,22	cyclictest	0	-21	swapper/1	20:36:56	1
1347825	99	63	34,27	cyclictest	0	-21	swapper/1	22:35:20	1
1347825	99	63	27,33	cyclictest	0	-21	swapper/1	00:35:15	1
1347824	99	63	2,41	cyclictest	1469319	-21	ntpq	23:00:34	0
1347824	99	63	20,41	cyclictest	1457652	-21	tail	22:45:38	0
1347825	99	62	29,31	cyclictest	1521418	-21	tail	00:05:24	1
1347825	99	62	2,7	cyclictest	1535646	-21	ssh	00:25:16	1
1347825	99	62	23,33	cyclictest	0	-21	swapper/1	19:50:01	1
1347824	99	62	55,5	cyclictest	1368607	-21	kworker/u4:5+events_unbound	20:40:02	0
1347824	99	62	31,28	cyclictest	0	-21	swapper/0	23:30:30	0
1347824	99	62	26,34	cyclictest	1347823	-21	cyclictest	22:52:22	0
1347825	99	61	31,27	cyclictest	1431709	-21	latency_hist	22:15:01	1
1347825	99	61	2,20	cyclictest	1489502	-21	ssh	23:25:31	1
1347825	99	61	1,19	cyclictest	1416403	-21	ssh	21:55:23	1
1347825	99	61	1,19	cyclictest	1416403	-21	ssh	21:55:23	1
1347824	99	61	31,28	cyclictest	1424280	-21	fschecks_time	22:05:23	0
1347824	99	61	28,30	cyclictest	1380352	-21	timerandwakeup	21:10:39	0
1347824	99	61	28,30	cyclictest	1380352	-21	timerandwakeup	21:10:38	0
1347824	99	61	27,31	cyclictest	1506506	-21	sd-accept	23:46:09	0
1347824	99	61	2,54	cyclictest	1362373	-21	apt-get	20:05:14	0
1347825	99	60	6,11	cyclictest	1473455	-21	ssh	23:05:38	1
1347825	99	60	4,14	cyclictest	1407704	-21	ssh	21:45:13	1
1347824	99	60	3,51	cyclictest	1465184	-21	ntpq	22:55:28	0
1347824	99	60	28,30	cyclictest	1387118	-21	basename	21:20:00	0
1347824	99	60	27,30	cyclictest	1360855	-21	kworker/u4:9-rpciod	20:20:29	0
1347824	99	60	2,51	cyclictest	1358496	-21	apt-get	19:50:12	0
1347825	99	59	35,21	cyclictest	0	-21	swapper/1	22:15:05	1
1347825	99	59	27,29	cyclictest	1372219	-21	switchtime	20:40:38	1
1347825	99	59	27,29	cyclictest	0	-21	swapper/1	21:30:16	1
1347825	99	59	26,30	cyclictest	1481780	-21	unixbench-2d	23:15:40	1
1347825	99	59	26,29	cyclictest	1456137	-21	cron	22:45:00	1
1347825	99	59	1,18	cyclictest	1461187	-21	ssh	22:50:26	1
1347824	99	59	30,26	cyclictest	1355696	-21	kworker/u4:10-rpciod	20:25:39	0
1347824	99	59	2,53	cyclictest	1531764	-21	ssh	00:20:02	0
1347824	99	59	23,34	cyclictest	257	50	irq/23-42890000.ethernet	19:20:27	0
1347824	99	59	19,35	cyclictest	1452364	-21	ssh	22:40:16	0
1347825	99	58	3,21	cyclictest	1424521	-21	ssh	22:05:25	1
1347825	99	58	28,27	cyclictest	1350559	-21	latency_hist	19:20:02	1
1347825	99	58	2,21	cyclictest	1493451	-21	ssh	23:30:30	1
1347825	99	58	2,18	cyclictest	1377297	-21	ps	21:00:35	1
1347824	99	58	7,47	cyclictest	0	-21	swapper/0	20:40:20	0
1347824	99	58	3,52	cyclictest	1369523	-21	ps	20:30:34	0
1347824	99	58	27,29	cyclictest	1485366	-21	ssh	23:20:28	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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