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 Wed Mar 18, 2026 00:44:11)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
1429208	99	108	86,19	cyclictest	53	-21	kswapd0	23:10:06	0
1429208	99	105	90,13	cyclictest	1529560	-21	kworker/u4:4+events_unbound	22:41:51	0
1429208	99	104	94,7	cyclictest	1555908	-21	kworker/u4:5+events_unbound	23:01:53	0
1429208	99	102	78,6	cyclictest	1444596	-21	kworker/u4:5+events_unbound	21:26:35	0
1429209	99	96	84,8	cyclictest	1555908	-21	kworker/u4:5+events_unbound	23:00:35	1
1429208	99	95	88,5	cyclictest	1489106	-21	kworker/u4:9+events_unbound	21:46:38	0
1429208	99	92	81,8	cyclictest	1445866	-21	kworker/u4:7+events_unbound	20:31:27	0
1429208	99	90	81,7	cyclictest	1564294	-21	kworker/u4:10+events_unbound	23:06:54	0
1429208	99	89	79,7	cyclictest	1605047	-21	kworker/u4:9+events_unbound	00:17:07	0
1429208	99	87	79,6	cyclictest	1631366	-21	kworker/u4:3+events_unbound	00:27:09	0
1429208	99	84	74,7	cyclictest	1586939	-21	kworker/u4:13+events_unbound	23:45:02	0
1429208	99	84	74,7	cyclictest	1586939	-21	kworker/u4:13+events_unbound	23:45:02	0
1429208	99	82	74,6	cyclictest	1524427	-21	kworker/u4:8+events_unbound	22:21:43	0
1429208	99	80	66,9	cyclictest	1444593	-21	kworker/u4:0+events_unbound	21:11:30	0
1429208	99	80	66,9	cyclictest	1444593	-21	kworker/u4:0+events_unbound	21:11:30	0
1429208	99	80	62,11	cyclictest	1602935	-21	ssh	23:50:18	0
1429209	99	79	39,37	cyclictest	0	-21	swapper/1	22:40:34	1
1429208	99	76	69,5	cyclictest	1605047	-21	kworker/u4:9+events_unbound	00:02:04	0
1429209	99	75	69,4	cyclictest	1440668	-21	kworker/u4:4+events_unbound	20:41:28	1
1429208	99	75	68,5	cyclictest	1489106	-21	kworker/u4:9+events_unbound	22:06:40	0
1429208	99	75	67,6	cyclictest	1516117	-21	kworker/u4:18+events_unbound	23:26:58	0
1429208	99	75	66,6	cyclictest	1452334	-21	kworker/u4:15+events_unbound	20:40:01	0
1429209	99	73	34,10	cyclictest	378	-21	dbus-daemon	00:17:06	1
1429209	99	71	29,5	cyclictest	0	-21	swapper/1	21:25:29	1
1429208	99	71	63,5	cyclictest	1555906	-21	kworker/u4:3+events_unbound	23:00:00	0
1429209	99	70	32,5	cyclictest	1554876	-21	/usr/sbin/munin	22:55:38	1
1429208	99	70	62,5	cyclictest	1564293	-21	kworker/u4:9+events_unbound	23:16:59	0
1429209	99	69	39,28	cyclictest	1607905	-21	ntpq	23:55:32	1
1429209	99	69	37,30	cyclictest	1464533	-21	cron	21:15:00	1
1429209	99	69	37,30	cyclictest	1464533	-21	cron	21:15:00	1
1429209	99	69	33,33	cyclictest	0	-21	swapper/1	23:15:33	1
1429208	99	69	61,5	cyclictest	1438126	-21	kworker/u4:13+events_unbound	19:45:01	0
1429208	99	69	60,5	cyclictest	1444593	-21	kworker/u4:0+events_unbound	21:10:01	0
1429208	99	69	60,5	cyclictest	1444593	-21	kworker/u4:0+events_unbound	21:10:01	0
1429209	99	68	36,30	cyclictest	1602673	-21	aten2__	23:50:14	1
1429208	99	68	61,5	cyclictest	1546888	-21	kworker/u4:15+events_unbound	22:51:53	0
1429209	99	67	33,6	cyclictest	0	-21	swapper/1	21:45:18	1
1429209	99	67	31,7	cyclictest	0	-21	swapper/1	23:05:39	1
1429209	99	66	33,5	cyclictest	1629395	-21	aten_r7power_en	00:20:21	1
1429208	99	66	45,11	cyclictest	256	50	irq/23-42890000.ethernet	21:30:37	0
1429208	99	65	47,6	cyclictest	1582415	-21	kworker/u4:7+events_unbound	23:38:42	0
1429209	99	64	28,8	cyclictest	0	-21	swapper/1	21:40:38	1
1429209	99	63	33,5	cyclictest	1469419	-21	diskmemload	21:20:17	1
1429209	99	63	32,7	cyclictest	1620892	-21	kernelversion	00:10:21	1
1429209	99	63	31,6	cyclictest	0	-21	swapper/1	21:35:33	1
1429209	99	63	30,4	cyclictest	0	-21	swapper/1	23:25:14	1
1429208	99	63	51,9	cyclictest	1442434	-21	df	20:00:21	0
1429209	99	62	30,8	cyclictest	1482521	-21	latency_hist	21:35:01	1
1429208	99	62	55,5	cyclictest	1605046	-21	kworker/u4:7+events_unbound	23:57:03	0
1429209	99	61	32,7	cyclictest	1519558	-21	unixbench_multi	22:15:39	1
1429208	99	61	55,4	cyclictest	1466941	-21	kworker/u4:12+events_unbound	21:56:39	0
1429208	99	61	45,6	cyclictest	1564294	-21	kworker/u4:10+events_unbound	23:20:59	0
1429208	99	61	37,20	cyclictest	1518254	-21	/usr/sbin/munin	22:15:10	0
1429209	99	60	32,5	cyclictest	1445899	-21	idleruntime-cro	20:15:00	1
1429208	99	59	50,6	cyclictest	1465453	-21	/usr/sbin/munin	21:15:20	0
1429208	99	59	45,10	cyclictest	0	-21	swapper/0	23:40:13	0
1429208	99	58	50,6	cyclictest	1027774	-21	kworker/u4:5+events_unbound	19:56:24	0
1429208	99	58	45,6	cyclictest	1489106	-21	kworker/u4:9+events_unbound	22:46:50	0
1429208	99	58	37,16	cyclictest	1460044	-21	diskmemload	00:20:13	0
1429208	99	58	32,23	cyclictest	1506105	-21	mailstats	22:00:41	0
1429209	99	57	47,8	cyclictest	378	-21	dbus-daemon	23:41:59	1
1429209	99	57	45,8	cyclictest	53	-21	kswapd0	22:40:01	1
1429209	99	57	24,7	cyclictest	0	-21	swapper/1	19:55:16	1
1429208	99	57	49,6	cyclictest	1443323	-21	kworker/u4:10+events_unbound	20:06:25	0
1429208	99	56	51,4	cyclictest	1368501	-21	kworker/u4:6+events_unbound	19:16:17	0
1429208	99	56	50,4	cyclictest	1443319	-21	kworker/u4:9+events_unbound	21:00:01	0
1429208	99	56	49,5	cyclictest	1452332	-21	kworker/u4:6+events_unbound	20:45:01	0
1429208	99	55	38,4	cyclictest	1419153	-21	kworker/u4:3+events_unbound	19:30:01	0
1429208	99	55	35,17	cyclictest	1444596	-21	kworker/u4:5-rpciod	21:25:00	0
1429208	99	54	46,6	cyclictest	1631366	-21	kworker/u4:3+events_unbound	00:32:10	0
1429208	99	54	46,6	cyclictest	1480617	-21	kworker/u4:7+events_unbound	22:11:00	0
1429208	99	54	38,10	cyclictest	1534043	-21	kworker/u4:5-rpciod	22:33:37	0
1429208	99	53	35,16	cyclictest	1447206	-21	idleruntime-cro	20:20:00	0
1429209	99	52	45,5	cyclictest	1614063	-21	kworker/u4:0+events_unbound	00:05:02	1
1429208	99	52	40,9	cyclictest	1528047	-21	ps	22:25:36	0
1429208	99	51	8,22	cyclictest	1488024	-21	ssh	21:40:27	0
1429208	99	51	33,12	cyclictest	1066	-21	snmpd	22:36:24	0
1429209	99	50	42,6	cyclictest	1498124	-21	systemd	21:51:37	1
1429208	99	50	43,5	cyclictest	1430438	-21	kworker/u4:11+events_unbound	19:40:01	0
1429208	99	50	43,5	cyclictest	1430438	-21	kworker/u4:11+events_unbound	19:40:01	0
1429209	99	49	43,4	cyclictest	1452333	-21	kworker/u4:13+events_unbound	20:55:00	1
1429209	99	49	42,5	cyclictest	1568258	-21	unixbench-2d	23:10:44	1
1429209	99	49	41,5	cyclictest	1448102	-21	sendmail_mailqu	20:20:35	1
1429208	99	49	43,4	cyclictest	1444596	-21	kworker/u4:5+events_unbound	20:30:00	0
1429208	99	49	42,5	cyclictest	1626876	-21	kworker/u4:13+events_unbound	00:37:12	0
1429208	99	49	42,5	cyclictest	1605048	-21	kworker/u4:10+events_unbound	00:12:00	0
1429209	99	48	41,5	cyclictest	1527277	-21	aten_r7power_vo	22:25:16	1
1429209	99	48	40,5	cyclictest	1436493	-21	sendmail_mailqu	19:35:35	1
1429209	99	48	40,5	cyclictest	1436493	-21	sendmail_mailqu	19:35:35	1
1429208	99	48	43,4	cyclictest	1419153	-21	kworker/u4:3+events_unbound	19:31:18	0
1429208	99	48	41,5	cyclictest	1431721	-21	kworker/u4:14+events_unbound	19:21:18	0
1429208	99	48	40,5	cyclictest	1483144	-21	fschecks_time	21:35:18	0
1429208	99	48	39,6	cyclictest	1454141	-21	fschecks_time	20:45:18	0
1429208	99	48	2,33	cyclictest	1585506	-21	sh	23:30:25	0
1429209	99	47	40,5	cyclictest	1523406	-21	ldconfig	22:20:24	1
1429209	99	47	39,5	cyclictest	1433445	-21	fschecks_count	19:25:19	1
1429209	99	47	38,6	cyclictest	1505376	-21	fschecks_count	22:00:20	1
1429209	99	47	37,7	cyclictest	1580074	-21	idleruntime-cro	23:24:59	1
1429208	99	47	39,5	cyclictest	1429205	-21	cyclictest	21:50:27	0
1429208	99	47	36,6	cyclictest	1614063	-21	kworker/u4:0-xprtiod	00:08:52	0
1429209	99	46	40,4	cyclictest	1643610	-21	awk	00:35:41	1
1429209	99	46	39,5	cyclictest	1633797	-21	df_abs	00:25:16	1
1429209	99	46	37,7	cyclictest	1560446	-21	kworker/u4:6+events_unbound	23:37:00	1
1429209	99	46	37,7	cyclictest	0	-21	swapper/1	21:16:32	1
1429209	99	46	36,8	cyclictest	1599183	-21	sendmail_mailst	23:45:38	1
1429209	99	46	36,8	cyclictest	1599183	-21	sendmail_mailst	23:45:38	1
1429209	99	45	38,5	cyclictest	1451495	-21	fschecks_count	20:35:23	1
1429209	99	45	38,5	cyclictest	1451165	-21	apt-key	20:35:02	1
1429209	99	45	37,6	cyclictest	1449701	-21	systemd	20:26:27	1
1429209	99	45	37,5	cyclictest	1501621	-21	proc_pri	21:55:40	1
1429209	99	45	37,5	cyclictest	1446343	-21	fschecks_count	20:15:19	1
1429209	99	45	37,5	cyclictest	1435633	-21	cat	19:35:01	1
1429208	99	45	37,6	cyclictest	1429205	-21	cyclictest	20:20:15	0
1429208	99	45	35,7	cyclictest	1429392	-21	aten_r7power_cu	19:10:14	0
1429209	99	44	5,25	cyclictest	1509549	-21	ssh	22:05:19	1
1429209	99	44	34,8	cyclictest	1439383	-21	systemd	19:46:21	1
1429209	99	44	33,9	cyclictest	1620028	-21	grep	00:10:01	1
1429209	99	44	33,8	cyclictest	1553353	-21	cron	22:55:00	1
1429209	99	43	36,5	cyclictest	1432130	-21	sed	19:20:16	1
1429209	99	43	35,6	cyclictest	1589037	-21	latency_hist	23:35:02	1
1429209	99	43	34,6	cyclictest	1454724	-21	timerwakeupswit	20:45:36	1
1429209	99	43	34,6	cyclictest	0	-21	swapper/1	19:10:27	1
1429208	99	43	35,5	cyclictest	1457954	-21	grep	21:00:20	0
1429208	99	43	34,7	cyclictest	1438371	-21	aten_r7power_cu	19:45:16	0
1429209	99	42	36,4	cyclictest	0	-21	swapper/1	20:00:36	1
1429209	99	42	32,8	cyclictest	1514040	-21	grep	22:10:17	1
1429208	99	42	34,5	cyclictest	1027774	-21	kworker/u4:5+events_unbound	19:10:01	0
1429209	99	41	34,5	cyclictest	1458770	-21	munin-run	21:05:00	1
1429209	99	41	33,6	cyclictest	1532778	-21	diskmemload	22:30:40	1
1429209	99	41	33,6	cyclictest	1439848	-21	fschecks_count	19:50:19	1
1429209	99	41	33,6	cyclictest	1439848	-21	fschecks_count	19:50:19	1
1429209	99	41	32,6	cyclictest	0	-21	swapper/1	22:45:25	1
1429209	99	41	31,7	cyclictest	0	-21	swapper/1	21:05:19	1
1429209	99	41	31,7	cyclictest	0	-21	swapper/1	21:05:19	1
1429208	99	41	34,5	cyclictest	1444980	-21	df_abs	20:10:17	0
1429208	99	41	34,5	cyclictest	1440073	-21	kernelversion	19:50:22	0
1429208	99	41	34,5	cyclictest	1440073	-21	kernelversion	19:50:22	0
1429209	99	40	33,5	cyclictest	1456690	-21	fschecks_time	20:55:19	1
1429209	99	39	30,6	cyclictest	0	-21	swapper/1	00:30:39	1
1429208	99	39	31,5	cyclictest	1455745	-21	sshd	20:50:31	0
1429209	99	38	28,8	cyclictest	1430796	-21	cpu	19:15:16	1
1429209	99	37	30,5	cyclictest	1444149	-21	sshd	20:05:32	1
1429209	99	36	29,5	cyclictest	1419153	-21	kworker/u4:3+events_unbound	19:40:31	1
1429209	99	31	22,7	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