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 Mon Dec 01, 2025 00:44:08)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
1663842	99	110	67,32	cyclictest	53	-21	kswapd0	23:50:08	0
1663843	99	104	93,9	cyclictest	1825570	-21	kworker/u4:1+events_unbound	23:51:59	1
1663843	99	95	80,5	cyclictest	1797592	-21	kworker/u4:13+events_unbound	23:28:07	1
1663843	99	93	88,3	cyclictest	1734015	-21	kworker/u4:9+events_unbound	22:17:55	1
1663842	99	91	82,7	cyclictest	1725894	-21	kworker/u4:8+events_unbound	21:47:52	0
1663842	99	91	82,7	cyclictest	1725894	-21	kworker/u4:8+events_unbound	21:47:51	0
1663843	99	90	79,8	cyclictest	1687236	-21	kworker/u4:2+events_unbound	21:12:51	1
1663842	99	88	38,40	cyclictest	1682000	-21	kworker/u4:5+xprtiod	20:30:14	0
1663843	99	86	76,7	cyclictest	1688544	-21	kworker/u4:8+events_unbound	21:17:49	1
1663843	99	84	74,7	cyclictest	1689827	-21	kworker/u4:13+events_unbound	20:52:46	1
1663843	99	83	73,7	cyclictest	1682001	-21	kworker/u4:11+events_unbound	21:02:47	1
1663843	99	82	74,6	cyclictest	1665064	-21	kworker/u4:0+events_unbound	19:37:33	1
1663842	99	82	73,6	cyclictest	1855556	-21	kworker/u4:11+events_unbound	00:33:53	0
1663843	99	81	73,6	cyclictest	1855553	-21	kworker/u4:7+events_unbound	00:34:04	1
1663842	99	81	74,5	cyclictest	1797034	-21	kworker/u4:4+events_unbound	23:43:09	0
1663843	99	80	71,7	cyclictest	1652501	-21	kworker/u4:14+events_unbound	20:12:42	1
1663842	99	80	73,5	cyclictest	1749750	-21	kworker/u4:15+events_unbound	22:17:57	0
1663842	99	79	71,6	cyclictest	1671520	-21	kworker/u4:20+events_unbound	20:02:38	0
1663843	99	76	67,6	cyclictest	1685957	-21	kworker/u4:1+events_unbound	20:42:47	1
1663843	99	75	67,6	cyclictest	1839988	-21	kworker/u4:2+events_unbound	00:29:00	1
1663843	99	75	59,7	cyclictest	1833592	-21	kworker/u4:6+events_unbound	00:13:52	1
1663842	99	75	65,7	cyclictest	1778068	-21	kworker/u4:9+events_unbound	22:58:02	0
1663842	99	74	65,6	cyclictest	1682001	-21	kworker/u4:11+events_unbound	20:27:43	0
1663843	99	73	64,6	cyclictest	1713655	-21	kworker/u4:1+events_unbound	21:40:01	1
1663843	99	72	63,7	cyclictest	1652501	-21	kworker/u4:14+events_unbound	20:02:39	1
1663842	99	72	64,6	cyclictest	1473139	-21	kworker/u4:4+events_unbound	20:42:45	0
1663842	99	72	62,7	cyclictest	1797034	-21	kworker/u4:4+events_unbound	23:23:05	0
1663842	99	72	27,4	cyclictest	0	-21	swapper/0	00:30:01	0
1663843	99	71	62,6	cyclictest	1859251	-21	kworker/u4:0+events_unbound	00:39:06	1
1663842	99	71	32,36	cyclictest	1820544	-21	mailstats	23:45:38	0
1663843	99	70	50,6	cyclictest	1701753	-21	kworker/u4:10+events_unbound	21:52:54	1
1663843	99	70	50,6	cyclictest	1701753	-21	kworker/u4:10+events_unbound	21:52:54	1
1663842	99	70	60,7	cyclictest	1734015	-21	kworker/u4:9+events_unbound	22:07:54	0
1663842	99	70	38,28	cyclictest	1860657	-21	cron	00:40:00	0
1663842	99	70	33,34	cyclictest	1808518	-21	mailstats	23:30:39	0
1663842	99	70	30,36	cyclictest	0	-21	swapper/0	22:30:44	0
1663843	99	69	62,5	cyclictest	1778069	-21	kworker/u4:11+events_unbound	22:53:03	1
1663843	99	69	61,6	cyclictest	1609809	-21	kworker/u4:3+events_unbound	19:32:33	1
1663843	99	69	60,6	cyclictest	1665064	-21	kworker/u4:0+events_unbound	19:22:33	1
1663842	99	69	31,36	cyclictest	1745005	-21	timerwakeupswit	22:10:41	0
1663843	99	68	62,4	cyclictest	1778068	-21	kworker/u4:9+events_unbound	23:13:04	1
1663842	99	68	38,28	cyclictest	1755963	-21	aten_r7power_cu	22:25:17	0
1663842	99	68	36,30	cyclictest	1834197	-21	ssh	00:03:13	0
1663842	99	68	35,30	cyclictest	1699452	-21	aten_r7power_en	21:15:17	0
1663842	99	68	32,33	cyclictest	0	-21	swapper/0	22:53:22	0
1663842	99	68	14,47	cyclictest	1663818	-21	munin-run	19:10:00	0
1663842	99	68	14,47	cyclictest	1663818	-21	munin-run	19:10:00	0
1663842	99	67	58,6	cyclictest	1682001	-21	kworker/u4:11+events_unbound	21:05:01	0
1663842	99	67	57,7	cyclictest	1678147	-21	kworker/u4:7+events_unbound	20:22:41	0
1663842	99	67	36,29	cyclictest	1788558	-21	processes	23:05:41	0
1663842	99	67	25,36	cyclictest	0	-21	swapper/0	19:30:02	0
1663842	99	67	25,36	cyclictest	0	-21	swapper/0	19:30:02	0
1663842	99	66	30,6	cyclictest	1673498	-21	gltestperf	19:45:24	0
1663842	99	65	54,8	cyclictest	1797034	-21	kworker/u4:4+events_unbound	23:18:05	0
1663842	99	65	30,32	cyclictest	1703873	-21	ssh	21:20:20	0
1663842	99	65	29,33	cyclictest	1679905	-21	fschecks_count	20:10:20	0
1663842	99	65	27,35	cyclictest	0	-21	swapper/0	19:50:34	0
1663842	99	65	25,6	cyclictest	0	-21	swapper/0	22:40:43	0
1663842	99	65	20,43	cyclictest	1736051	-21	df_abs	22:00:18	0
1663843	99	64	57,5	cyclictest	1813364	-21	kworker/u4:14+events_unbound	23:38:10	1
1663842	99	64	31,30	cyclictest	0	-21	swapper/0	21:35:25	0
1663842	99	64	30,32	cyclictest	1663841	-21	cyclictest	19:40:28	0
1663842	99	64	26,5	cyclictest	0	-21	swapper/0	21:30:34	0
1663842	99	64	24,9	cyclictest	0	-21	swapper/0	21:10:16	0
1663842	99	63	28,4	cyclictest	0	-21	swapper/0	21:25:28	0
1663842	99	63	28,32	cyclictest	0	-21	swapper/0	20:35:19	0
1663842	99	63	26,34	cyclictest	0	-21	swapper/0	23:35:25	0
1663842	99	63	24,7	cyclictest	0	-21	swapper/0	21:05:21	0
1663843	99	62	55,5	cyclictest	1749747	-21	kworker/u4:7+events_unbound	22:27:57	1
1663843	99	62	52,7	cyclictest	1778067	-21	kworker/u4:7+events_unbound	23:03:02	1
1663842	99	62	29,8	cyclictest	1825570	-21	kworker/u4:1+rpciod	23:55:34	0
1663842	99	62	26,6	cyclictest	0	-21	swapper/0	23:10:39	0
1663842	99	62	25,7	cyclictest	0	-21	swapper/0	20:15:39	0
1663842	99	62	25,6	cyclictest	0	-21	swapper/0	19:15:22	0
1663842	99	62	24,7	cyclictest	0	-21	swapper/0	21:55:36	0
1663842	99	62	14,18	cyclictest	0	-21	swapper/0	00:10:35	0
1663842	99	61	8,14	cyclictest	1847043	-21	ntpq	00:20:27	0
1663842	99	61	51,7	cyclictest	1665072	-21	kworker/u4:5+events_unbound	19:12:30	0
1663842	99	61	28,5	cyclictest	0	-21	swapper/0	21:40:28	0
1663842	99	61	28,4	cyclictest	0	-21	swapper/0	21:55:00	0
1663842	99	61	28,4	cyclictest	0	-21	swapper/0	21:55:00	0
1663842	99	61	28,30	cyclictest	0	-21	swapper/0	00:15:20	0
1663842	99	61	26,6	cyclictest	1771958	-21	aten_r7power_vo	22:45:18	0
1663842	99	61	25,7	cyclictest	0	-21	swapper/0	19:20:18	0
1663842	99	61	25,5	cyclictest	0	-21	swapper/0	23:00:18	0
1663843	99	60	52,6	cyclictest	1652501	-21	kworker/u4:14+events_unbound	21:22:52	1
1663843	99	60	51,6	cyclictest	1770055	-21	kworker/u4:8+events_unbound	22:43:00	1
1663842	99	60	29,4	cyclictest	0	-21	swapper/0	22:20:16	0
1663842	99	60	23,7	cyclictest	0	-21	swapper/0	19:35:38	0
1663843	99	59	51,6	cyclictest	1689827	-21	kworker/u4:13+events_unbound	20:47:48	1
1663843	99	59	51,6	cyclictest	1663841	-21	cyclictest	23:16:40	1
1663842	99	59	24,6	cyclictest	0	-21	swapper/0	22:35:24	0
1663843	99	58	50,6	cyclictest	1825570	-21	kworker/u4:1+events_unbound	23:58:05	1
1663842	99	58	25,5	cyclictest	0	-21	swapper/0	23:25:16	0
1663842	99	58	23,6	cyclictest	0	-21	swapper/0	19:30:30	0
1663843	99	57	48,6	cyclictest	1832605	-21	diskmemload	00:00:40	1
1663843	99	57	48,6	cyclictest	0	-21	swapper/1	22:55:38	1
1663843	99	57	47,8	cyclictest	1675517	-21	apt-get	19:55:13	1
1663843	99	55	45,7	cyclictest	1724338	-21	uname	21:45:22	1
1663843	99	55	45,7	cyclictest	1724338	-21	uname	21:45:22	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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