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 Thu Apr 23, 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
514001	99	140	129,8	cyclictest	565148	-21	kworker/u4:5+events_unbound	21:36:01	0
514001	99	127	104,8	cyclictest	547681	-21	kworker/u4:3+events_unbound	21:30:58	0
514001	99	110	100,8	cyclictest	551569	-21	kworker/u4:8+events_unbound	21:25:58	0
514001	99	101	50,19	cyclictest	53	-21	kswapd0	22:40:10	0
514001	99	100	91,7	cyclictest	675612	-21	kworker/u4:11+events_unbound	23:41:34	0
514001	99	100	86,12	cyclictest	524269	-21	kworker/u4:1+events_unbound	21:10:57	0
514002	99	96	48,37	cyclictest	559097	-21	gltestperf	21:25:20	1
514001	99	93	85,6	cyclictest	640244	-21	kworker/u4:16+events_unbound	23:11:23	0
514001	99	93	55,15	cyclictest	53	-21	kswapd0	23:25:09	0
514001	99	91	82,6	cyclictest	583165	-21	kworker/u4:15+events_unbound	22:11:06	0
514001	99	90	82,6	cyclictest	632010	-21	kworker/u4:13+events_unbound	22:56:17	0
514001	99	90	73,6	cyclictest	284771	-21	kworker/u4:1+events_unbound	19:10:35	0
514001	99	87	79,6	cyclictest	632010	-21	kworker/u4:13+events_unbound	23:16:24	0
514002	99	82	75,5	cyclictest	583166	-21	kworker/u4:16+events_unbound	22:01:04	1
514001	99	82	74,6	cyclictest	623099	-21	kworker/u4:8+events_unbound	22:46:16	0
514001	99	81	74,5	cyclictest	583164	-21	kworker/u4:14+events_unbound	21:56:05	0
514001	99	81	74,5	cyclictest	583164	-21	kworker/u4:14+events_unbound	21:56:04	0
514001	99	80	72,6	cyclictest	569664	-21	kworker/u4:9+events_unbound	21:51:04	0
514001	99	80	72,6	cyclictest	569664	-21	kworker/u4:9+events_unbound	21:51:04	0
514001	99	79	68,3	cyclictest	583162	-21	kworker/u4:12+events_unbound	22:16:08	0
514001	99	75	68,5	cyclictest	515233	-21	kworker/u4:9+events_unbound	20:25:49	0
514001	99	75	62,9	cyclictest	591568	-21	kworker/u4:4+events_unbound	22:05:01	0
514002	99	73	28,40	cyclictest	611896	-21	ssh	22:25:12	1
514002	99	71	61,8	cyclictest	0	-21	swapper/1	22:30:27	1
514001	99	71	64,5	cyclictest	515233	-21	kworker/u4:9+events_unbound	19:45:02	0
514001	99	69	55,12	cyclictest	616662	-21	fschecks_count	22:30:20	0
514002	99	68	38,28	cyclictest	572423	-21	gltestperf	21:40:21	1
514001	99	68	60,6	cyclictest	697045	-21	kworker/u4:1+events_unbound	00:06:42	0
514001	99	68	42,19	cyclictest	53	-21	kswapd0	22:50:12	0
514002	99	67	60,5	cyclictest	701472	-21	kworker/u4:3+events_unbound	00:13:30	1
514001	99	67	60,5	cyclictest	671195	-21	kworker/u4:7+events_unbound	23:57:28	0
514002	99	66	33,31	cyclictest	524303	-21	apt	19:50:00	1
514002	99	66	32,31	cyclictest	0	-21	swapper/1	23:50:28	1
514002	99	66	2,9	cyclictest	681796	-21	ssh	23:45:16	1
514002	99	66	20,43	cyclictest	726058	-21	ssh	00:35:31	1
514001	99	66	59,5	cyclictest	671195	-21	kworker/u4:7+events_unbound	23:52:21	0
514002	99	65	33,28	cyclictest	0	-21	swapper/1	00:25:32	1
514002	99	65	3,11	cyclictest	53	-21	kswapd0	23:20:16	1
514002	99	65	3,11	cyclictest	53	-21	kswapd0	23:20:15	1
514001	99	65	60,4	cyclictest	671195	-21	kworker/u4:7+events_unbound	00:23:46	0
514001	99	65	59,5	cyclictest	670546	-21	kworker/u4:5+events_unbound	23:46:53	0
514001	99	65	55,8	cyclictest	711058	-21	sshd	00:18:43	0
514002	99	64	33,28	cyclictest	656121	-21	gltestperf	23:15:21	1
514002	99	64	31,31	cyclictest	595135	-21	processes	22:05:37	1
514002	99	64	1,13	cyclictest	621549	-21	ssh	22:35:32	1
514002	99	63	30,30	cyclictest	0	-21	swapper/1	21:30:29	1
514002	99	63	29,30	cyclictest	0	-21	swapper/1	23:55:40	1
514002	99	63	2,13	cyclictest	651294	-21	apt-get	23:10:13	1
514001	99	63	55,6	cyclictest	519168	-21	kworker/u4:4+events_unbound	20:20:48	0
514001	99	63	55,6	cyclictest	512733	-21	kworker/u4:7+events_unbound	19:35:38	0
514001	99	63	44,6	cyclictest	701472	-21	kworker/u4:3+events_unbound	00:11:58	0
514002	99	62	7,9	cyclictest	0	-21	swapper/1	21:10:37	1
514002	99	62	4,11	cyclictest	700053	-21	ssh	00:05:36	1
514002	99	62	38,22	cyclictest	707859	-21	/usr/sbin/munin	00:15:14	1
514002	99	62	28,31	cyclictest	598675	-21	aten2__	22:10:15	1
514002	99	61	7,6	cyclictest	0	-21	swapper/1	22:55:19	1
514002	99	61	34,25	cyclictest	538406	-21	unixbench_multi	20:40:37	1
514002	99	61	31,27	cyclictest	653535	-21	kworker/u4:6-rpciod	23:30:41	1
514002	99	61	28,30	cyclictest	0	-21	swapper/1	22:40:40	1
514002	99	61	27,31	cyclictest	0	-21	swapper/1	23:40:29	1
514002	99	61	27,31	cyclictest	0	-21	swapper/1	00:00:33	1
514002	99	61	27,31	cyclictest	0	-21	swapper/1	00:00:32	1
514001	99	61	54,5	cyclictest	515233	-21	kworker/u4:9+events_unbound	19:45:40	0
514001	99	61	54,5	cyclictest	512733	-21	kworker/u4:7+events_unbound	19:58:42	0
514002	99	60	4,8	cyclictest	634738	-21	ntpq	22:50:35	1
514002	99	60	3,15	cyclictest	712903	-21	ntpq	00:20:28	1
514002	99	60	3,15	cyclictest	536062	-21	apt-key	20:35:02	1
514002	99	60	26,31	cyclictest	0	-21	swapper/1	21:15:29	1
514001	99	60	53,5	cyclictest	569664	-21	kworker/u4:9+events_unbound	21:41:00	0
514001	99	60	52,6	cyclictest	640245	-21	kworker/u4:17+events_unbound	23:01:19	0
514001	99	60	52,6	cyclictest	640245	-21	kworker/u4:17+events_unbound	23:01:19	0
514001	99	60	52,6	cyclictest	535858	-21	kworker/u4:15+events_unbound	21:00:55	0
514002	99	59	50,6	cyclictest	53	-21	kswapd0	23:40:00	1
514002	99	59	3,14	cyclictest	642620	-21	apt-get	23:00:12	1
514002	99	59	3,14	cyclictest	642620	-21	apt-get	23:00:11	1
514002	99	59	27,29	cyclictest	604308	-21	unixbench_multi	22:15:43	1
514002	99	59	22,32	cyclictest	0	-21	swapper/1	20:05:01	1
514002	99	59	22,32	cyclictest	0	-21	swapper/1	20:05:01	1
514002	99	59	2,16	cyclictest	554154	-21	sh	21:20:09	1
514001	99	59	50,3	cyclictest	533319	-21	kworker/u4:13+events_unbound	20:55:54	0
514002	99	58	7,17	cyclictest	589436	-21	munin-run	22:00:01	1
514002	99	58	7,17	cyclictest	589436	-21	munin-run	22:00:00	1
514002	99	58	36,20	cyclictest	664620	-21	grep	23:25:22	1
514002	99	58	36,20	cyclictest	629856	-21	sh	22:45:19	1
514002	99	58	26,28	cyclictest	0	-21	swapper/1	00:30:26	1
514002	99	58	25,30	cyclictest	0	-21	swapper/1	20:45:33	1
514002	99	58	2,15	cyclictest	543170	-21	ntpq	21:00:32	1
514002	99	58	11,7	cyclictest	0	-21	swapper/1	22:20:13	1
514001	99	58	40,14	cyclictest	256	50	irq/23-42890000.ethernet	20:35:10	0
514002	99	57	28,25	cyclictest	0	-21	swapper/1	20:25:20	1
514002	99	57	26,28	cyclictest	0	-21	swapper/1	21:50:17	1
514002	99	57	26,28	cyclictest	0	-21	swapper/1	21:50:16	1
514002	99	57	2,17	cyclictest	576813	-21	ssh	21:45:19	1
514002	99	57	2,14	cyclictest	525022	-21	ntpq	19:50:25	1
514002	99	57	2,12	cyclictest	522531	-21	ntpq	19:40:28	1
514002	99	57	2,10	cyclictest	646957	-21	apt-get	23:05:13	1
514002	99	56	3,10	cyclictest	567490	-21	ssh	21:35:11	1
514002	99	56	26,27	cyclictest	0	-21	swapper/1	20:35:39	1
514002	99	56	1,15	cyclictest	517472	-21	ntpq	19:20:37	1
514001	99	56	52,3	cyclictest	256	50	irq/23-42890000.ethernet	23:35:13	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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