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 792 highest latencies:

System rack7slot2.osadl.org (updated Sat Mar 21, 2026 00:44:09)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
1418345	99	107	96,8	cyclictest	1478626	-21	kworker/u4:8+events_unbound	21:51:55	0
1418346	99	103	95,6	cyclictest	1478628	-21	kworker/u4:10+events_unbound	21:56:58	1
1418346	99	101	94,5	cyclictest	1616050	-21	kworker/u4:9+events_unbound	00:29:03	1
1418346	99	98	90,6	cyclictest	1566851	-21	kworker/u4:2+events_unbound	23:22:11	1
1418346	99	96	88,6	cyclictest	1456491	-21	kworker/u4:7+events_unbound	21:36:53	1
1418346	99	89	82,5	cyclictest	1428613	-21	kworker/u4:9+events_unbound	20:56:46	1
1418346	99	89	81,6	cyclictest	1553985	-21	kworker/u4:2+events_unbound	23:07:08	1
1418346	99	89	81,6	cyclictest	1415753	-21	kworker/u4:6+events_unbound	19:11:28	1
1418346	99	89	81,6	cyclictest	1414543	-21	kworker/u4:0+events_unbound	19:21:30	1
1418346	99	85	78,5	cyclictest	1428613	-21	kworker/u4:9+events_unbound	20:51:46	1
1418346	99	85	78,5	cyclictest	1415752	-21	kworker/u4:3+events_unbound	20:01:37	1
1418346	99	84	79,4	cyclictest	1576395	-21	kworker/u4:1+events_unbound	23:37:13	1
1418346	99	83	75,6	cyclictest	1404415	-21	kworker/u4:8+events_unbound	19:26:31	1
1418346	99	82	74,6	cyclictest	1441454	-21	kworker/u4:0+events_unbound	21:01:48	1
1418345	99	79	29,41	cyclictest	256	50	irq/23-42890000.ethernet	22:00:32	0
1418345	99	79	27,38	cyclictest	0	-21	swapper/0	20:20:23	0
1418345	99	79	27,38	cyclictest	0	-21	swapper/0	20:20:22	0
1418345	99	79	2,52	cyclictest	1431773	-21	grep	20:00:20	0
1418345	99	78	2,53	cyclictest	1556946	-21	ssh	23:10:24	0
1418346	99	77	70,5	cyclictest	1434987	-21	kworker/u4:16+events_unbound	20:35:01	1
1418346	99	76	69,5	cyclictest	1420833	-21	kworker/u4:17+events_unbound	19:36:33	1
1418345	99	76	69,5	cyclictest	1518711	-21	kworker/u4:15+events_unbound	22:32:04	0
1418345	99	76	2,49	cyclictest	1436301	-21	apt-get	20:20:01	0
1418345	99	76	1,50	cyclictest	1474265	-21	ssh	21:37:16	0
1418346	99	75	68,5	cyclictest	1431143	-21	kworker/u4:12+events_unbound	21:06:49	1
1418345	99	75	2,48	cyclictest	1449161	-21	diskmemload	22:25:25	0
1418346	99	74	67,5	cyclictest	1436267	-21	kworker/u4:17+events_unbound	20:21:41	1
1418346	99	74	67,5	cyclictest	1436267	-21	kworker/u4:17+events_unbound	20:21:40	1
1418345	99	74	4,49	cyclictest	0	-21	swapper/0	21:10:26	0
1418345	99	74	34,37	cyclictest	1459670	-21	unixbench_multi	21:20:40	0
1418345	99	74	34,37	cyclictest	1459670	-21	unixbench_multi	21:20:39	0
1418346	99	73	67,4	cyclictest	0	-21	swapper/1	23:40:33	1
1418345	99	72	58,10	cyclictest	53	-21	kswapd0	00:15:33	0
1418345	99	72	24,31	cyclictest	1552427	-21	netstat	23:05:20	0
1418345	99	72	21,27	cyclictest	256	50	irq/23-42890000.ethernet	00:05:33	0
1418346	99	71	63,6	cyclictest	1593598	-21	kworker/u4:7+events_unbound	00:25:01	1
1418346	99	71	63,6	cyclictest	1474060	-21	kworker/u4:1+events_unbound	21:41:55	1
1418345	99	71	63,6	cyclictest	1474061	-21	kworker/u4:2+events_unbound	22:17:00	0
1418345	99	71	3,64	cyclictest	1481567	-21	ntpq	21:45:30	0
1418346	99	70	64,5	cyclictest	1419573	-21	kworker/u4:15+events_unbound	19:56:38	1
1418346	99	70	64,5	cyclictest	1419573	-21	kworker/u4:15+events_unbound	19:56:38	1
1418346	99	70	61,6	cyclictest	1496045	-21	kworker/u4:9+events_unbound	22:01:58	1
1418345	99	70	21,27	cyclictest	0	-21	swapper/0	21:55:18	0
1418345	99	70	19,28	cyclictest	1573837	-21	acpi	23:30:11	0
1418345	99	70	1,51	cyclictest	1583400	-21	ntpq	23:40:34	0
1418345	99	69	21,45	cyclictest	0	-21	swapper/0	22:39:59	0
1418345	99	68	56,9	cyclictest	1545061	-21	kworker/u4:9+events_unbound	23:00:00	0
1418345	99	68	36,29	cyclictest	0	-21	swapper/0	22:45:02	0
1418345	99	68	29,24	cyclictest	1428408	-21	timerandwakeup	19:45:40	0
1418345	99	68	25,25	cyclictest	0	-21	swapper/0	21:15:34	0
1418345	99	68	2,48	cyclictest	1425145	-21	fschecks_count	19:35:19	0
1418345	99	68	14,29	cyclictest	1618675	-21	ntpq	00:20:27	0
1418345	99	68	10,53	cyclictest	0	-21	swapper/0	00:15:00	0
1418345	99	67	21,43	cyclictest	256	50	irq/23-42890000.ethernet	23:25:30	0
1418346	99	66	59,5	cyclictest	1441454	-21	kworker/u4:0+events_unbound	20:40:02	1
1418346	99	66	58,6	cyclictest	1602584	-21	kworker/u4:3+events_unbound	00:10:02	1
1418345	99	66	21,27	cyclictest	0	-21	swapper/0	00:00:46	0
1418345	99	66	19,27	cyclictest	0	-21	swapper/0	00:25:19	0
1418345	99	66	16,32	cyclictest	1561367	-21	ntpq	23:15:27	0
1418345	99	66	1,45	cyclictest	1592046	-21	/usr/sbin/munin	23:50:22	0
1418345	99	65	33,30	cyclictest	1426277	-21	aten_r7power_po	19:40:16	0
1418345	99	64	37,21	cyclictest	1449257	-21	latency_hist	21:10:02	0
1418345	99	64	35,26	cyclictest	1442972	-21	aten2__	20:45:14	0
1418345	99	64	32,28	cyclictest	0	-21	swapper/0	22:10:23	0
1418345	99	64	1,59	cyclictest	1512789	-21	ssh	22:20:25	0
1418345	99	63	46,10	cyclictest	1424700	-21	modprobe	19:34:59	0
1418345	99	63	2,53	cyclictest	1463418	-21	/usr/sbin/munin	21:25:20	0
1418345	99	63	2,46	cyclictest	1631825	-21	ssh	00:35:24	0
1418345	99	63	22,35	cyclictest	1565096	-21	apt-get	23:20:12	0
1418346	99	62	55,5	cyclictest	1456491	-21	kworker/u4:7+events_unbound	21:21:52	1
1418346	99	62	55,5	cyclictest	1456491	-21	kworker/u4:7+events_unbound	21:21:52	1
1418345	99	62	39,19	cyclictest	1591246	-21	latency_hist	23:50:02	0
1418345	99	62	3,43	cyclictest	1438410	-21	ntpq	20:25:25	0
1418345	99	62	2,55	cyclictest	1626776	-21	ssh	00:30:14	0
1418345	99	62	2,42	cyclictest	1447396	-21	ntpq	21:00:30	0
1418345	99	62	1,58	cyclictest	1468162	-21	ntpq	21:30:30	0
1418345	99	62	1,57	cyclictest	1498653	-21	apt-get	22:05:11	0
1418345	99	62	1,54	cyclictest	1535249	-21	switchtime	22:45:38	0
1418345	99	61	26,28	cyclictest	0	-21	swapper/0	20:05:17	0
1418345	99	61	2,55	cyclictest	1422911	-21	ntpq	19:25:26	0
1418345	99	61	22,36	cyclictest	1547966	-21	cat	23:00:20	0
1418346	99	60	53,5	cyclictest	1428613	-21	kworker/u4:9+events_unbound	20:17:00	1
1418346	99	60	46,7	cyclictest	1536716	-21	kworker/u4:0+events_unbound	22:52:59	1
1418345	99	60	30,26	cyclictest	0	-21	swapper/0	23:35:38	0
1418345	99	60	2,54	cyclictest	1595841	-21	ssh	23:55:11	0
1418345	99	60	2,54	cyclictest	1441025	-21	ntpq	20:35:31	0
1418345	99	60	2,52	cyclictest	1444751	-21	ntpq	20:50:22	0
1418345	99	60	1,40	cyclictest	0	-21	swapper/0	21:40:34	0
1418346	99	59	50,6	cyclictest	0	-21	swapper/1	00:00:00	1
1418345	99	59	50,6	cyclictest	1418278	-21	kworker/u4:11+events_unbound	19:16:27	0
1418345	99	59	4,48	cyclictest	1445484	-21	apt-get	20:55:11	0
1418346	99	58	50,6	cyclictest	53	-21	kswapd0	21:50:01	1
1418345	99	58	34,22	cyclictest	1434203	-21	fschecks_time	20:10:18	0
1418345	99	58	3,33	cyclictest	1440216	-21	munin-run	20:35:01	0
1418345	99	58	1,4	cyclictest	1419070	-21	ntpq	19:10:25	0
1418345	99	57	3,48	cyclictest	1429382	-21	ntpq	19:50:27	0
1418345	99	57	2,51	cyclictest	1441673	-21	apt-get	20:40:12	0
1418345	99	57	1,38	cyclictest	1539484	-21	ssh	22:50:33	0
1418346	99	56	47,6	cyclictest	1560516	-21	date	23:15:05	1
1418346	99	56	45,5	cyclictest	1451322	-21	kworker/u4:1+events_unbound	21:11:58	1
1418346	99	56	41,5	cyclictest	1593598	-21	kworker/u4:7+events_unbound	23:52:02	1
1418345	99	56	3,47	cyclictest	1421711	-21	ntpq	19:20:30	0
1418346	99	55	46,6	cyclictest	37	-21	kcompactd0	00:30:16	1
1418346	99	55	42,7	cyclictest	1451993	-21	kworker/u4:3+events_unbound	21:35:00	1
1418345	99	55	3,48	cyclictest	1430645	-21	ntpq	19:55:26	0
1418345	99	55	3,48	cyclictest	1430645	-21	ntpq	19:55:25	0
1418346	99	53	46,5	cyclictest	1543287	-21	df_abs	22:55:16	1
1418346	99	51	45,5	cyclictest	1598079	-21	kworker/u4:13+events_unbound	00:15:58	1
1418346	99	50	43,5	cyclictest	1454615	-21	ntpq	21:15:24	1
1418346	99	50	40,7	cyclictest	1492191	-21	kworker/u4:6+events_unbound	22:07:00	1
1418346	99	50	38,8	cyclictest	1514270	-21	kworker/u4:8-rpciod	22:23:35	1
1418346	99	49	43,5	cyclictest	1514268	-21	kworker/u4:3+events_unbound	22:40:41	1
1418346	99	49	42,5	cyclictest	1573586	-21	awk	23:30:01	1
1418346	99	48	7,26	cyclictest	1516177	-21	apt-get	22:25:09	1
1418346	99	48	41,5	cyclictest	1534892	-21	gcc	22:45:27	1
1418346	99	48	41,5	cyclictest	1514271	-21	kworker/u4:11+events_unbound	22:31:01	1
1418346	99	48	36,10	cyclictest	1460367	-21	kworker/u4:10+events_unbound	21:25:29	1
1418345	99	48	2,41	cyclictest	1418416	-21	latency_hist	19:10:02	0
1418346	99	47	41,4	cyclictest	1525768	-21	fschecks_time	22:35:25	1
1418346	99	47	38,6	cyclictest	1429820	-21	unixbench_singl	19:50:37	1
1418346	99	47	38,6	cyclictest	0	-21	swapper/1	23:02:06	1
1418346	99	46	40,4	cyclictest	1504048	-21	proc_pri	22:10:36	1
1418346	99	46	39,5	cyclictest	1440690	-21	fschecks_time	20:35:20	1
1418346	99	46	21,14	cyclictest	17	1	rcu_preempt	22:15:26	1
1418346	99	45	38,5	cyclictest	1485306	-21	aten2__	21:50:18	1
1418346	99	45	38,5	cyclictest	1415752	-21	kworker/u4:3+events_unbound	19:30:41	1
1418346	99	45	37,5	cyclictest	27	1	ktimers/1	00:02:05	1
1418346	99	45	36,7	cyclictest	1574208	-21	fschecks_count	23:30:19	1
1418346	99	44	38,4	cyclictest	1561045	-21	fschecks_time	23:15:19	1
1418346	99	44	34,6	cyclictest	0	-21	swapper/1	23:45:32	1
1418346	99	44	33,9	cyclictest	1613220	-21	ssh	00:15:01	1
1418346	99	43	35,6	cyclictest	1418278	-21	kworker/u4:11+events_unbound	19:19:02	1
1418346	99	41	35,4	cyclictest	1632469	-21	unixbench_singl	00:35:39	1
1418346	99	41	33,6	cyclictest	1432849	-21	df_abs	20:05:18	1
1418346	99	41	33,5	cyclictest	0	-21	swapper/1	19:45:01	1
1418346	99	40	32,6	cyclictest	0	-21	swapper/1	19:45:24	1
1418346	99	39	31,6	cyclictest	1434018	-21	aten_r7power_po	20:10:16	1
1418346	99	39	31,6	cyclictest	0	-21	swapper/1	20:45:15	1
1418346	99	39	16,11	cyclictest	17	1	rcu_preempt	20:25:19	1
1418346	99	29	16,10	cyclictest	1418407	-21	cat	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