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 Sat Sep 19, 2026 00:44:10)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
1378278	99	104	92,5	cyclictest	1434039	-21	kworker/u4:5+events_unbound	21:41:25	1
1378278	99	89	82,5	cyclictest	1527269	-21	kworker/u4:4+events_unbound	23:31:41	1
1378278	99	89	82,5	cyclictest	1406416	-21	kworker/u4:2+events_unbound	21:01:21	1
1378278	99	89	82,5	cyclictest	1394838	-21	kworker/u4:11+events_unbound	21:06:21	1
1378278	99	88	81,5	cyclictest	1391001	-21	kworker/u4:13+events_unbound	20:06:16	1
1378278	99	88	81,5	cyclictest	1364198	-21	kworker/u4:8+events_unbound	20:16:18	1
1378278	99	88	80,6	cyclictest	1405146	-21	kworker/u4:4+events_unbound	20:56:21	1
1378278	99	82	74,6	cyclictest	1378208	-21	kworker/u4:1+events_unbound	19:51:15	1
1378276	99	82	2,28	cyclictest	1378277	-21	modprobe	19:10:01	0
1378278	99	77	70,5	cyclictest	1390996	-21	kworker/u4:4+events_unbound	20:26:20	1
1378278	99	77	70,5	cyclictest	1380789	-21	kworker/u4:12+events_unbound	19:36:15	1
1378278	99	77	70,5	cyclictest	1364198	-21	kworker/u4:8+events_unbound	19:21:14	1
1378278	99	75	68,5	cyclictest	1527267	-21	kworker/u4:0+events_unbound	23:26:36	1
1378278	99	75	62,6	cyclictest	1394840	-21	kworker/u4:15+events_unbound	20:21:20	1
1378278	99	75	62,6	cyclictest	1394840	-21	kworker/u4:15+events_unbound	20:21:19	1
1378276	99	75	70,3	cyclictest	1438605	-21	kworker/u4:6+events_unbound	21:51:25	0
1378278	99	74	67,5	cyclictest	1379506	-21	kworker/u4:9+events_unbound	19:26:16	1
1378278	99	73	66,5	cyclictest	1387193	-21	kworker/u4:12+events_unbound	19:46:15	1
1378276	99	65	43,18	cyclictest	53	-21	kswapd0	00:15:09	0
1378276	99	63	47,13	cyclictest	1492130	-21	kworker/u4:15+events_unbound	22:51:29	0
1378276	99	61	24,20	cyclictest	0	-21	swapper/0	00:25:26	0
1378278	99	60	53,5	cyclictest	1378208	-21	kworker/u4:1+events_unbound	20:51:21	1
1378278	99	60	46,9	cyclictest	1564600	-21	wget	00:05:15	1
1378278	99	59	52,5	cyclictest	1400040	-21	kworker/u4:12+events_unbound	20:40:02	1
1378276	99	59	48,7	cyclictest	1520505	-21	wget	23:15:14	0
1378278	99	58	51,5	cyclictest	1513827	-21	kworker/u4:6+events_unbound	23:10:45	1
1378276	99	58	51,5	cyclictest	1568981	-21	/usr/sbin/munin	00:10:15	0
1378276	99	58	51,5	cyclictest	1392298	-21	kworker/u4:3+events_unbound	20:31:19	0
1378278	99	57	50,5	cyclictest	1456093	-21	kworker/u4:14+events_unbound	22:55:02	1
1378276	99	57	41,11	cyclictest	53	-21	kswapd0	23:35:08	0
1378278	99	56	49,5	cyclictest	1365699	-21	kworker/u4:3+events_unbound	19:10:03	1
1378278	99	56	46,7	cyclictest	1441624	-21	ntpq	21:45:33	1
1378278	99	56	40,6	cyclictest	1447691	-21	kworker/u4:9+events_unbound	21:52:46	1
1378276	99	56	46,7	cyclictest	1440567	-21	latency_hist	21:45:00	0
1378276	99	56	38,16	cyclictest	1490501	-21	ntp_offset	22:40:35	0
1378276	99	56	22,10	cyclictest	1422461	-21	modprobe	21:25:01	0
1378276	99	55	21,18	cyclictest	0	-21	swapper/0	21:45:28	0
1378278	99	54	39,6	cyclictest	1588672	-21	kworker/u4:10+events_unbound	00:35:02	1
1378278	99	54	2,41	cyclictest	1477157	-21	ssh	22:25:28	1
1378276	99	54	42,9	cyclictest	1564321	-21	sed	00:05:01	0
1378278	99	53	46,5	cyclictest	1509350	-21	kworker/u4:1+events_unbound	23:05:46	1
1378278	99	53	46,5	cyclictest	1509350	-21	kworker/u4:1+events_unbound	23:05:45	1
1378276	99	53	44,7	cyclictest	1434038	-21	kworker/u4:2+events_unbound	22:10:34	0
1378276	99	53	42,9	cyclictest	53	-21	kswapd0	22:20:08	0
1378276	99	53	42,9	cyclictest	53	-21	kswapd0	22:20:07	0
1378276	99	53	39,7	cyclictest	1565237	-21	ld	00:05:27	0
1378276	99	53	31,19	cyclictest	1385081	-21	fschecks_count	19:35:20	0
1378276	99	53	27,23	cyclictest	0	-21	swapper/0	23:20:22	0
1378278	99	52	46,4	cyclictest	1379507	-21	kworker/u4:10+events_unbound	20:00:02	1
1378278	99	52	44,5	cyclictest	0	-21	swapper/1	21:25:10	1
1378276	99	52	42,8	cyclictest	1393555	-21	systemd	20:06:17	0
1378276	99	52	38,8	cyclictest	1387206	-21	modprobe	19:45:01	0
1378276	99	52	34,16	cyclictest	0	-21	swapper/0	21:35:23	0
1378276	99	52	34,16	cyclictest	0	-21	swapper/0	21:35:23	0
1378276	99	52	31,19	cyclictest	1552373	-21	switchtime	23:50:37	0
1378278	99	51	44,5	cyclictest	1494175	-21	aten_r7power_en	22:45:15	1
1378278	99	51	44,5	cyclictest	1434038	-21	kworker/u4:2+events_unbound	21:56:24	1
1378278	99	51	41,8	cyclictest	1485746	-21	ssh	22:35:22	1
1378278	99	51	39,8	cyclictest	0	-21	swapper/1	22:10:29	1
1378276	99	51	31,17	cyclictest	0	-21	swapper/0	20:00:18	0
1378276	99	51	23,14	cyclictest	15	1	ktimers/0	23:55:13	0
1378278	99	50	43,5	cyclictest	1577732	-21	ssh	00:20:02	1
1378278	99	50	40,8	cyclictest	1427319	-21	aten2__	21:30:15	1
1378276	99	50	43,5	cyclictest	1495206	-21	timerandwakeup	22:45:37	0
1378276	99	50	43,5	cyclictest	1431481	-21	idleruntime-cro	21:34:59	0
1378276	99	50	38,10	cyclictest	1450714	-21	mailstats	21:55:37	0
1378276	99	50	10,4	cyclictest	15	1	ktimers/0	23:30:34	0
1378278	99	49	43,4	cyclictest	0	-21	swapper/1	00:15:17	1
1378278	99	49	42,5	cyclictest	1511362	-21	sh	23:05:00	1
1378278	99	49	42,5	cyclictest	1431877	-21	aten_r7power_en	21:35:18	1
1378278	99	49	42,5	cyclictest	1431877	-21	aten_r7power_en	21:35:17	1
1378276	99	49	6,16	cyclictest	14	-21	ksoftirqd/0	22:25:28	0
1378276	99	49	42,5	cyclictest	1512359	-21	/usr/sbin/munin	23:05:26	0
1378276	99	49	42,5	cyclictest	1512359	-21	/usr/sbin/munin	23:05:25	0
1378276	99	49	40,6	cyclictest	1547042	-21	aten_r7power_vo	23:45:17	0
1378276	99	49	37,9	cyclictest	1396613	-21	df	20:20:20	0
1378276	99	49	37,9	cyclictest	1396613	-21	df	20:20:20	0
1378276	99	49	21,15	cyclictest	15	1	ktimers/0	00:30:35	0
1378276	99	49	17,18	cyclictest	0	-21	swapper/0	22:00:31	0
1378278	99	48	41,5	cyclictest	1378274	-21	cyclictest	00:30:24	1
1378278	99	48	40,5	cyclictest	1409020	-21	diskmemload	22:20:49	1
1378278	99	48	40,5	cyclictest	1409020	-21	diskmemload	22:20:49	1
1378278	99	48	40,5	cyclictest	1399382	-21	gltestperf	20:30:21	1
1378278	99	48	35,8	cyclictest	1522758	-21	kworker/u4:5-rpciod	23:22:13	1
1378278	99	48	3,41	cyclictest	1560990	-21	ntpq	00:00:34	1
1378276	99	48	41,5	cyclictest	1530197	-21	/usr/sbin/munin	23:25:36	0
1378276	99	48	40,6	cyclictest	1459790	-21	sh	22:05:40	0
1378276	99	48	39,6	cyclictest	1487654	-21	kworker/u4:6+events_unbound	23:01:33	0
1378276	99	48	39,6	cyclictest	0	-21	swapper/0	00:20:17	0
1378276	99	48	38,7	cyclictest	1387471	-21	aten_r7power_po	19:45:16	0
1378276	99	48	28,16	cyclictest	256	50	irq/23-42890000.ethernet	20:15:12	0
1378278	99	47	38,7	cyclictest	1482201	-21	/usr/sbin/munin	22:30:49	1
1378278	99	47	38,7	cyclictest	1472022	-21	latency_hist	22:20:02	1
1378278	99	47	37,7	cyclictest	1422459	-21	cron	21:25:00	1
1378276	99	47	41,4	cyclictest	1468379	-21	/usr/sbin/munin	22:15:32	0
1378278	99	46	40,4	cyclictest	1538300	-21	basename	23:35:23	1
1378278	99	46	40,4	cyclictest	1490372	-21	ld	22:40:26	1
1378278	99	46	39,5	cyclictest	1586301	-21	diskmemload	00:30:00	1
1378278	99	46	39,5	cyclictest	1492126	-21	kworker/u4:7+events_unbound	22:52:45	1
1378278	99	46	24,5	cyclictest	1518276	-21	kworker/u4:1-rpciod	23:15:35	1
1378276	99	46	38,6	cyclictest	1503139	-21	/usr/sbin/munin	22:55:17	0
1378276	99	46	36,7	cyclictest	1414918	-21	grep	21:15:53	0
1378278	99	45	38,5	cyclictest	1546917	-21	/usr/sbin/munin	23:45:16	1
1378278	99	45	38,5	cyclictest	1438603	-21	kworker/u4:1+events_unbound	22:06:26	1
1378278	99	45	38,5	cyclictest	1409411	-21	basename	21:10:17	1
1378278	99	45	38,5	cyclictest	1403891	-21	kworker/u4:12	20:50:00	1
1378278	99	45	23,15	cyclictest	17	1	rcu_preempt	23:50:43	1
1378276	99	45	38,5	cyclictest	1400424	-21	df_abs	20:35:18	0
1378276	99	45	37,6	cyclictest	1394456	-21	grep	20:10:36	0
1378276	99	45	37,6	cyclictest	1391044	-21	idleruntime-cro	20:00:00	0
1378276	99	45	36,7	cyclictest	1379761	-21	aten_r7power_en	19:15:14	0
1378276	99	45	35,7	cyclictest	1403781	-21	unixbench_multi	20:45:38	0
1378278	99	44	38,4	cyclictest	1569223	-21	cat	00:10:18	1
1378278	99	44	36,5	cyclictest	1557004	-21	head	23:55:40	1
1378278	99	44	36,5	cyclictest	0	-21	swapper/1	20:00:01	1
1378278	99	44	35,6	cyclictest	1386984	-21	timerandwakeup	19:40:36	1
1378278	99	44	19,9	cyclictest	17	1	rcu_preempt	23:42:18	1
1378276	99	44	37,5	cyclictest	1489475	-21	diskmemload	22:40:01	0
1378276	99	44	37,5	cyclictest	1481202	-21	fschecks_time	22:30:21	0
1378276	99	44	37,5	cyclictest	1407386	-21	cat	21:00:34	0
1378276	99	44	34,8	cyclictest	1402004	-21	kernelversion	20:40:20	0
1378276	99	44	34,7	cyclictest	1405419	-21	aten_r7power_en	20:55:17	0
1378276	99	44	33,8	cyclictest	1383680	-21	aten_r7power_vo	19:30:14	0
1378276	99	44	30,7	cyclictest	0	-21	swapper/0	00:35:27	0
1378276	99	44	22,20	cyclictest	1382516	-21	fschecks_count	19:25:20	0
1378276	99	44	18,23	cyclictest	256	50	irq/23-42890000.ethernet	23:10:34	0
1378278	99	43	33,7	cyclictest	1402602	-21	kworker/u4:17-nfsiod	21:15:52	1
1378276	99	43	36,4	cyclictest	1381320	-21	fschecks_time	19:20:18	0
1378276	99	43	35,6	cyclictest	1542635	-21	aten_r7power_en	23:40:18	0
1378276	99	43	34,6	cyclictest	1410312	-21	uname	21:10:40	0
1378276	99	43	24,17	cyclictest	0	-21	swapper/0	21:30:01	0
1378278	99	42	35,5	cyclictest	1385893	-21	kworker/u4:7+events_unbound	20:10:02	1
1378278	99	42	32,7	cyclictest	0	-21	swapper/1	22:01:40	1
1378276	99	42	32,8	cyclictest	1397747	-21	aten_r7power_cu	20:25:13	0
1378276	99	42	32,6	cyclictest	1405012	-21	unixbench-2d	20:50:37	0
1378278	99	41	35,4	cyclictest	0	-21	swapper/1	19:16:12	1
1378278	99	41	31,7	cyclictest	1401037	-21	switchtime	20:35:41	1
1378278	99	41	17,5	cyclictest	27	1	ktimers/1	19:30:17	1
1378276	99	41	33,6	cyclictest	1378746	-21	fschecks_time	19:10:19	0
1378276	99	41	32,6	cyclictest	1409002	-21	kworker/u4:14	21:10:01	0
1378276	99	40	1,29	cyclictest	15	1	ktimers/0	19:50:25	0
1378278	99	37	27,8	cyclictest	0	-21	swapper/1	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