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 Tue Dec 23, 2025 00:44:12)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
1633113	99	153	138,10	cyclictest	53	-21	kswapd0	23:00:11	0
1633113	99	110	72,34	cyclictest	53	-21	kswapd0	21:30:09	0
1633113	99	109	89,7	cyclictest	1729092	-21	kworker/u4:12+events_unbound	22:28:20	0
1633113	99	98	81,4	cyclictest	1729091	-21	kworker/u4:11+events_unbound	22:33:20	0
1633113	99	94	85,7	cyclictest	1704265	-21	kworker/u4:7+events_unbound	22:13:16	0
1633113	99	93	82,8	cyclictest	1729091	-21	kworker/u4:11+events_unbound	22:38:22	0
1633113	99	89	82,5	cyclictest	1639458	-21	kworker/u4:2+events_unbound	19:37:38	0
1633113	99	88	74,5	cyclictest	1724865	-21	kworker/u4:9+events_unbound	22:23:18	0
1633113	99	84	68,6	cyclictest	1630607	-21	kworker/u4:7+events_unbound	20:17:47	0
1633113	99	84	68,6	cyclictest	1630607	-21	kworker/u4:7+events_unbound	20:17:47	0
1633113	99	81	62,7	cyclictest	1654868	-21	kworker/u4:22+events_unbound	20:50:00	0
1633113	99	80	73,5	cyclictest	1659973	-21	kworker/u4:1+events_unbound	21:30:00	0
1633113	99	72	65,5	cyclictest	1746091	-21	kworker/u4:4+events_unbound	22:48:29	0
1633113	99	71	63,6	cyclictest	1766795	-21	kworker/u4:2+events_unbound	23:53:45	0
1633114	99	70	55,8	cyclictest	0	-21	swapper/1	21:15:33	1
1633113	99	67	60,5	cyclictest	1691551	-21	kworker/u4:9+events_unbound	21:48:08	0
1633113	99	66	59,5	cyclictest	1652328	-21	kworker/u4:19+events_unbound	21:15:00	0
1633113	99	66	59,5	cyclictest	1651033	-21	kworker/u4:18+events_unbound	20:55:00	0
1633113	99	65	58,5	cyclictest	1639459	-21	kworker/u4:9+events_unbound	19:52:42	0
1633113	99	64	57,5	cyclictest	1634337	-21	kworker/u4:6+events_unbound	19:42:40	0
1633113	99	64	57,5	cyclictest	1616800	-21	kworker/u4:5+events_unbound	19:32:37	0
1633113	99	63	55,5	cyclictest	1687322	-21	kworker/u4:4+events_unbound	21:45:00	0
1633113	99	62	54,6	cyclictest	1804474	-21	kworker/u4:5+events_unbound	00:00:59	0
1633113	99	62	43,7	cyclictest	1687322	-21	kworker/u4:4+events_unbound	21:57:27	0
1633114	99	61	53,6	cyclictest	1762506	-21	kworker/u4:4+events_unbound	23:38:41	1
1633113	99	61	53,6	cyclictest	1783817	-21	kworker/u4:14+events_unbound	23:35:02	0
1633113	99	61	51,7	cyclictest	1823194	-21	apt-get	00:20:13	0
1633113	99	58	51,5	cyclictest	1649753	-21	kworker/u4:16+events_unbound	20:12:45	0
1633113	99	58	51,5	cyclictest	1645918	-21	kworker/u4:14+events_unbound	20:37:53	0
1633113	99	58	44,12	cyclictest	1691551	-21	kworker/u4:9+events_unbound	22:01:59	0
1633113	99	58	28,25	cyclictest	256	50	irq/23-42890000.ethernet	19:55:11	0
1633113	99	57	43,8	cyclictest	1817221	-21	kworker/u4:14-rpciod	00:13:51	0
1633114	99	56	46,7	cyclictest	1829343	-21	kworker/u4:1+events_unbound	00:38:55	1
1633114	99	56	4,40	cyclictest	1769692	-21	ssh	23:15:37	1
1633114	99	56	43,8	cyclictest	0	-21	swapper/1	21:10:24	1
1633114	99	56	42,10	cyclictest	1658588	-21	sed	20:45:37	1
1633114	99	56	35,15	cyclictest	1793935	-21	apt-get	23:45:15	1
1633114	99	56	21,12	cyclictest	1686587	-21	ssh	21:35:41	1
1633114	99	56	17,15	cyclictest	1781421	-21	ssh	23:30:17	1
1633114	99	56	17,11	cyclictest	1810173	-21	ssh	00:04:46	1
1633113	99	56	49,5	cyclictest	1741851	-21	kworker/u4:15+events_unbound	22:50:02	0
1633113	99	56	49,5	cyclictest	1639459	-21	kworker/u4:9+events_unbound	20:07:44	0
1633114	99	55	45,4	cyclictest	0	-21	swapper/1	00:10:12	1
1633114	99	55	17,14	cyclictest	1821236	-21	ssh	00:17:15	1
1633114	99	55	17,14	cyclictest	1821236	-21	ssh	00:17:15	1
1633114	99	55	17,13	cyclictest	1733187	-21	ssh	22:31:59	1
1633114	99	55	16,15	cyclictest	1700287	-21	ssh	21:52:45	1
1633113	99	55	48,5	cyclictest	1821435	-21	kworker/u4:2+events_unbound	00:18:52	0
1633113	99	55	48,5	cyclictest	1821435	-21	kworker/u4:2+events_unbound	00:18:52	0
1633113	99	55	47,4	cyclictest	0	-21	swapper/0	23:45:15	0
1633113	99	55	44,8	cyclictest	1837768	-21	kworker/u4:2+events_unbound	00:40:01	0
1633113	99	55	40,5	cyclictest	1762507	-21	kworker/u4:6+events_unbound	23:08:34	0
1633114	99	54	47,5	cyclictest	1636182	-21	fschecks_time	19:20:21	1
1633114	99	54	45,7	cyclictest	1681068	-21	ssh	21:30:07	1
1633114	99	54	17,14	cyclictest	1749361	-21	ssh	22:50:59	1
1633114	99	54	17,11	cyclictest	1709884	-21	ssh	22:04:51	1
1633114	99	54	16,13	cyclictest	1805545	-21	ssh	23:58:58	1
1633114	99	54	16,10	cyclictest	1705190	-21	ssh	21:58:58	1
1633114	99	54	15,15	cyclictest	1810519	-21	ssh	00:05:03	1
1633114	99	54	15,13	cyclictest	1696424	-21	ssh	21:48:14	1
1633114	99	54	15,11	cyclictest	1655631	-21	ntpq	20:35:25	1
1633114	99	54	14,15	cyclictest	1834747	-21	ssh	00:34:00	1
1633114	99	54	14,14	cyclictest	1726366	-21	ssh	22:24:30	1
1633113	99	54	46,5	cyclictest	1770154	-21	/usr/sbin/munin	23:15:44	0
1633113	99	54	45,6	cyclictest	1685410	-21	aten_r7power_vo	21:35:17	0
1633114	99	53	31,18	cyclictest	1798154	-21	apt-get	23:50:13	1
1633114	99	53	19,12	cyclictest	0	-21	swapper/1	21:25:35	1
1633114	99	53	17,12	cyclictest	1738181	-21	ssh	22:38:20	1
1633114	99	53	16,10	cyclictest	1775829	-21	ssh	23:23:12	1
1633114	99	53	16,10	cyclictest	1775829	-21	ssh	23:23:12	1
1633114	99	53	15,10	cyclictest	1717623	-21	ssh	22:13:46	1
1633114	99	53	15,10	cyclictest	1673235	-21	memory	21:20:22	1
1633114	99	53	15,10	cyclictest	1673235	-21	memory	21:20:22	1
1633114	99	53	14,16	cyclictest	1779311	-21	ssh	23:27:01	1
1633114	99	53	14,14	cyclictest	1713402	-21	ssh	22:08:43	1
1633114	99	53	14,12	cyclictest	1791754	-21	ssh	23:41:48	1
1633114	99	53	13,15	cyclictest	1739437	-21	ssh	22:40:09	1
1633113	99	53	41,5	cyclictest	1766795	-21	kworker/u4:2+events_unbound	23:20:08	0
1633113	99	53	41,5	cyclictest	1766795	-21	kworker/u4:2+events_unbound	23:20:08	0
1633114	99	52	39,9	cyclictest	1747545	-21	cron	22:50:00	1
1633114	99	52	14,12	cyclictest	1692326	-21	ssh	21:43:22	1
1633114	99	52	13,13	cyclictest	1830410	-21	ssh	00:28:38	1
1633113	99	52	45,5	cyclictest	1645916	-21	kworker/u4:0+events_unbound	21:05:03	0
1633113	99	52	45,4	cyclictest	256	50	irq/23-42890000.ethernet	22:40:31	0
1633113	99	52	44,6	cyclictest	1833551	-21	kworker/u4:4+events_unbound	00:34:26	0
1633113	99	52	39,5	cyclictest	1787479	-21	kworker/u4:15+events_unbound	23:41:00	0
1633114	99	51	18,8	cyclictest	1646772	-21	ntpq	20:00:31	1
1633114	99	51	15,14	cyclictest	0	-21	swapper/1	23:00:14	1
1633114	99	51	14,11	cyclictest	1766197	-21	ssh	23:11:05	1
1633114	99	51	12,12	cyclictest	1754808	-21	ssh	22:58:11	1
1633114	99	51	12,12	cyclictest	1754808	-21	ssh	22:58:11	1
1633113	99	51	30,19	cyclictest	1710625	-21	fschecks_count	22:05:20	0
1633114	99	50	15,10	cyclictest	1761084	-21	ntpq	23:05:28	1
1633114	99	50	13,11	cyclictest	1729844	-21	ssh	22:28:21	1
1633114	99	50	10,15	cyclictest	1825247	-21	ssh	00:21:56	1
1633113	99	50	42,6	cyclictest	1729085	-21	kworker/u4:2+events_unbound	22:58:44	0
1633113	99	50	42,6	cyclictest	1729085	-21	kworker/u4:2+events_unbound	22:58:44	0
1633114	99	49	15,10	cyclictest	1720020	-21	ssh	22:15:47	1
1633113	99	49	43,5	cyclictest	1808722	-21	kworker/u4:0+events_unbound	00:25:22	0
1633113	99	49	43,4	cyclictest	1648483	-21	kworker/u4:15+events_unbound	21:24:43	0
1633113	99	49	43,4	cyclictest	1648483	-21	kworker/u4:15+events_unbound	21:24:43	0
1633113	99	49	41,5	cyclictest	1654139	-21	fschecks_time	20:30:19	0
1633114	99	48	14,11	cyclictest	1654437	-21	ntpq	20:30:33	1
1633114	99	48	11,15	cyclictest	1656959	-21	ntpq	20:40:28	1
1633113	99	48	42,4	cyclictest	0	-21	swapper/0	23:10:17	0
1633113	99	48	39,6	cyclictest	1811203	-21	sh	00:05:22	0
1633114	99	47	38,6	cyclictest	1641006	-21	aten_r7power_cu	19:40:14	1
1633114	99	47	27,16	cyclictest	1662057	-21	ntpq	21:00:28	1
1633113	99	47	40,5	cyclictest	1668510	-21	aten_r7power_po	21:15:17	0
1633113	99	47	37,7	cyclictest	1637940	-21	switchtime	19:25:38	0
1633114	99	46	39,5	cyclictest	1643814	-21	fschecks_time	19:50:20	1
1633114	99	46	36,7	cyclictest	1663050	-21	fschecks_time	21:05:19	1
1633114	99	46	14,10	cyclictest	1639030	-21	ld	19:30:32	1
1633113	99	46	32,12	cyclictest	1800257	-21	kworker/u4:7+events_unbound	23:58:45	0
1633114	99	45	9,11	cyclictest	1633803	-21	ntpq	19:10:23	1
1633114	99	45	37,6	cyclictest	1634588	-21	aten_r7power_cu	19:15:15	1
1633114	99	45	36,6	cyclictest	0	-21	swapper/1	20:55:36	1
1633114	99	45	12,7	cyclictest	1653180	-21	ntp_states	20:25:35	1
1633113	99	45	38,5	cyclictest	1781461	-21	aten_r7power_cu	23:30:17	0
1633113	99	45	37,5	cyclictest	1656683	-21	cut	20:40:19	0
1633113	99	45	35,7	cyclictest	1660440	-21	fschecks_count	20:55:20	0
1633113	99	45	35,6	cyclictest	0	-21	swapper/0	22:17:29	0
1633114	99	44	37,5	cyclictest	1651727	-21	/usr/sbin/munin	20:20:21	1
1633114	99	44	35,7	cyclictest	1650294	-21	fschecks_time	20:15:19	1
1633114	99	44	35,7	cyclictest	1650294	-21	fschecks_time	20:15:19	1
1633114	99	44	35,7	cyclictest	1647545	-21	aten_r7power_vo	20:05:18	1
1633114	99	44	28,12	cyclictest	1637662	-21	ntpq	19:25:25	1
1633114	99	44	13,4	cyclictest	1658901	-21	apt-get	20:50:14	1
1633113	99	44	37,5	cyclictest	1691548	-21	kworker/u4:0-rpciod	21:50:33	0
1633113	99	44	34,8	cyclictest	1662554	-21	cron	21:05:00	0
1633113	99	44	34,7	cyclictest	1636262	-21	gltestperf	19:20:21	0
1633114	99	43	33,6	cyclictest	0	-21	swapper/1	20:10:20	1
1633114	99	43	12,8	cyclictest	1645459	-21	ntpq	19:55:35	1
1633113	99	43	35,5	cyclictest	1634877	-21	fschecks_time	19:15:19	0
1633113	99	43	33,7	cyclictest	1652923	-21	gltestperf	20:25:20	0
1633113	99	43	33,7	cyclictest	0	-21	swapper/0	23:25:39	0
1633114	99	42	35,5	cyclictest	1642961	-21	sendmail_mailqu	19:45:34	1
1633113	99	41	34,5	cyclictest	1639458	-21	kworker/u4:2+events_unbound	19:45:01	0
1633114	99	40	22,14	cyclictest	1640247	-21	ntpq	19:35:29	1
1633113	99	40	34,4	cyclictest	1634393	-21	latency_hist	19:15:01	0
1633113	99	40	33,4	cyclictest	0	-21	swapper/0	20:20:39	0
1633113	99	40	31,7	cyclictest	1647070	-21	timerwakeupswit	20:00:38	0
1633114	99	36	27,5	cyclictest	0	-21	swapper/1	19:10:01	1
1633113	99	34	13,6	cyclictest	1633175	-21	ls	19:10:01	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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