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 Apr 25, 2026 12:44:09)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
3883169	99	113	105,5	cyclictest	3992451	-21	kworker/u4:10+events_unbound	11:16:18	1
3883169	99	112	104,6	cyclictest	3943670	-21	kworker/u4:8+events_unbound	10:05:57	1
3883169	99	107	83,8	cyclictest	3884395	-21	kworker/u4:13+events_unbound	08:10:26	1
3883169	99	105	97,5	cyclictest	3987976	-21	kworker/u4:11+events_unbound	10:51:08	1
3883169	99	103	92,8	cyclictest	3884394	-21	kworker/u4:12+events_unbound	07:45:15	1
3883169	99	102	87,11	cyclictest	4095776	-21	sh	12:35:38	1
3883169	99	101	92,7	cyclictest	3870504	-21	kworker/u4:2+events_unbound	07:40:14	1
3883169	99	88	80,6	cyclictest	3884395	-21	kworker/u4:13+events_unbound	07:15:01	1
3883169	99	84	76,6	cyclictest	4083831	-21	kworker/u4:6+events_unbound	12:26:35	1
3883169	99	82	74,6	cyclictest	3982792	-21	kworker/u4:3+events_unbound	10:30:59	1
3883169	99	82	74,6	cyclictest	3907761	-21	kworker/u4:11+events_unbound	08:55:39	1
3883167	99	81	48,22	cyclictest	3883168	-21	kworker/u4:9	07:10:00	0
3883169	99	77	66,6	cyclictest	3987975	-21	kworker/u4:9+events_unbound	10:56:08	1
3883167	99	77	68,6	cyclictest	3885666	-21	kworker/u4:17+events_unbound	07:35:13	0
3883169	99	75	67,4	cyclictest	3898715	-21	kworker/u4:1+events_unbound	08:35:35	1
3883167	99	75	63,10	cyclictest	3916482	-21	kworker/u4:3+events_unbound	09:25:50	0
3883167	99	75	38,34	cyclictest	3995050	-21	ntp_kernel_pll_	10:40:26	0
3883167	99	75	29,11	cyclictest	4042841	-21	fschecks_count	11:35:20	0
3883169	99	74	67,5	cyclictest	4023080	-21	kworker/u4:3+events_unbound	11:45:00	1
3883169	99	74	67,5	cyclictest	4023080	-21	kworker/u4:3+events_unbound	11:45:00	1
3883167	99	72	56,5	cyclictest	3978935	-21	kworker/u4:1+events_unbound	10:36:00	0
3883167	99	71	64,5	cyclictest	3900075	-21	kworker/u4:10+events_unbound	08:45:36	0
3883167	99	71	26,41	cyclictest	0	-21	swapper/0	07:55:38	0
3883167	99	70	37,30	cyclictest	4020828	-21	aten_r7power_cu	11:10:17	0
3883167	99	70	36,32	cyclictest	3915372	-21	ntpq	09:10:38	0
3883167	99	70	25,43	cyclictest	0	-21	swapper/0	10:50:21	0
3883167	99	69	59,7	cyclictest	3884395	-21	kworker/u4:13+events_unbound	08:15:27	0
3883167	99	69	35,31	cyclictest	4051730	-21	ssh	11:45:21	0
3883167	99	69	30,7	cyclictest	0	-21	swapper/0	11:50:30	0
3883167	99	68	51,15	cyclictest	3969962	-21	kworker/u4:0+events_unbound	10:20:59	0
3883167	99	68	51,15	cyclictest	3969962	-21	kworker/u4:0+events_unbound	10:20:59	0
3883167	99	68	31,4	cyclictest	0	-21	swapper/0	11:05:40	0
3883167	99	67	5,17	cyclictest	4076320	-21	ssh	12:13:51	0
3883167	99	67	32,31	cyclictest	0	-21	swapper/0	09:45:29	0
3883167	99	67	31,8	cyclictest	0	-21	swapper/0	10:55:08	0
3883167	99	67	29,6	cyclictest	0	-21	swapper/0	11:30:26	0
3883167	99	67	29,5	cyclictest	4060492	-21	/usr/sbin/munin	11:55:24	0
3883167	99	66	31,4	cyclictest	0	-21	swapper/0	09:40:01	0
3883167	99	66	2,56	cyclictest	53	-21	kswapd0	10:15:09	0
3883169	99	65	58,5	cyclictest	4057806	-21	kworker/u4:2+events_unbound	11:55:04	1
3883169	99	65	57,6	cyclictest	4031962	-21	kworker/u4:1+events_unbound	11:30:03	1
3883169	99	65	48,8	cyclictest	4023080	-21	kworker/u4:3+events_unbound	11:15:01	1
3883167	99	65	8,55	cyclictest	0	-21	swapper/0	12:20:36	0
3883167	99	65	31,5	cyclictest	3914174	-21	diskmemload	10:30:29	0
3883167	99	65	29,7	cyclictest	3950668	-21	netstat	09:50:26	0
3883167	99	65	29,6	cyclictest	0	-21	swapper/0	12:15:26	0
3883167	99	65	28,6	cyclictest	0	-21	swapper/0	08:40:27	0
3883169	99	64	47,7	cyclictest	3956492	-21	kworker/u4:7+events_unbound	09:57:00	1
3883167	99	64	30,4	cyclictest	0	-21	swapper/0	12:35:33	0
3883167	99	64	28,6	cyclictest	0	-21	swapper/0	10:05:30	0
3883167	99	64	28,6	cyclictest	0	-21	swapper/0	07:40:19	0
3883167	99	64	28,5	cyclictest	0	-21	swapper/0	12:30:31	0
3883169	99	63	57,4	cyclictest	3909029	-21	kworker/u4:15+events_unbound	08:50:00	1
3883169	99	63	55,6	cyclictest	3676449	-21	kworker/u4:5+events_unbound	09:00:39	1
3883169	99	63	55,6	cyclictest	3658893	-21	kworker/u4:9+events_unbound	07:20:12	1
3883167	99	63	56,5	cyclictest	3996953	-21	kworker/u4:2+events_unbound	10:46:06	0
3883167	99	63	53,7	cyclictest	3912867	-21	kworker/u4:16+events_unbound	09:55:56	0
3883167	99	63	32,4	cyclictest	3967708	-21	apt-get	10:10:11	0
3883167	99	63	31,6	cyclictest	0	-21	swapper/0	10:00:26	0
3883167	99	63	29,8	cyclictest	3883166	-21	cyclictest	08:00:23	0
3883167	99	63	2,28	cyclictest	4029561	-21	/usr/sbin/munin	11:20:17	0
3883167	99	62	55,4	cyclictest	3898750	-21	apt-get	08:10:08	0
3883167	99	62	31,4	cyclictest	4068343	-21	ls	12:05:00	0
3883169	99	61	52,7	cyclictest	3990149	-21	/usr/sbin/munin	10:35:17	1
3883167	99	61	52,7	cyclictest	3881810	-21	kworker/u4:4+events_unbound	09:20:50	0
3883167	99	61	52,7	cyclictest	3881810	-21	kworker/u4:4+events_unbound	09:20:49	0
3883167	99	61	52,6	cyclictest	53	-21	kswapd0	12:30:01	0
3883169	99	59	52,5	cyclictest	4053363	-21	kworker/u4:8+events_unbound	12:16:32	1
3883167	99	59	29,7	cyclictest	3932453	-21	aten_r7power_vo	09:30:18	0
3883167	99	59	25,4	cyclictest	3892164	-21	kworker/u4:11-rpciod	07:50:01	0
3883169	99	58	51,5	cyclictest	3884395	-21	kworker/u4:13+events_unbound	07:25:12	1
3883169	99	58	51,5	cyclictest	3878163	-21	kworker/u4:6+events_unbound	08:05:00	1
3883169	99	58	50,6	cyclictest	3878163	-21	kworker/u4:6+events_unbound	07:55:03	1
3883167	99	58	50,6	cyclictest	3925551	-21	kworker/u4:10+events_unbound	09:40:54	0
3883167	99	58	49,7	cyclictest	3885666	-21	kworker/u4:17+events_unbound	07:30:13	0
3883167	99	57	5,9	cyclictest	3887233	-21	sshd	07:25:11	0
3883167	99	57	5,16	cyclictest	4012948	-21	/usr/sbin/munin	11:00:39	0
3883167	99	57	5,16	cyclictest	4012948	-21	/usr/sbin/munin	11:00:38	0
3883169	99	56	49,4	cyclictest	3912867	-21	kworker/u4:16+events_unbound	09:30:01	1
3883169	99	56	39,12	cyclictest	3894805	-21	modprobe	07:55:00	1
3883169	99	55	49,4	cyclictest	3956495	-21	kworker/u4:14+events_unbound	10:03:59	1
3883167	99	55	36,5	cyclictest	3974423	-21	kworker/u4:5+events_unbound	10:25:58	0
3883169	99	54	45,6	cyclictest	37	-21	kcompactd0	12:05:12	1
3883169	99	53	46,5	cyclictest	3969962	-21	kworker/u4:0+events_unbound	10:20:04	1
3883169	99	53	46,5	cyclictest	3969962	-21	kworker/u4:0+events_unbound	10:20:03	1
3883169	99	52	45,5	cyclictest	3936864	-21	/usr/sbin/munin	09:35:17	1
3883169	99	52	4,32	cyclictest	4073738	-21	ssh	12:10:29	1
3883167	99	52	30,8	cyclictest	0	-21	swapper/0	07:20:01	0
3883169	99	51	35,9	cyclictest	4036404	-21	kworker/u4:16-rpciod	11:36:43	1
3883169	99	51	35,5	cyclictest	4057806	-21	kworker/u4:2+events_unbound	12:00:42	1
3883169	99	49	43,5	cyclictest	3907761	-21	kworker/u4:11+events_unbound	09:33:59	1
3883167	99	49	42,5	cyclictest	3914175	-21	apt	09:10:01	0
3883167	99	49	42,4	cyclictest	0	-21	swapper/0	11:41:24	0
3883167	99	49	42,4	cyclictest	0	-21	swapper/0	11:41:24	0
3883167	99	49	41,6	cyclictest	3886836	-21	/usr/sbin/munin	07:20:38	0
3883169	99	47	40,5	cyclictest	3924584	-21	grep	09:20:40	1
3883169	99	47	40,5	cyclictest	3924584	-21	grep	09:20:39	1
3883169	99	47	40,5	cyclictest	3883166	-21	cyclictest	09:15:47	1
3883169	99	47	39,5	cyclictest	3954148	-21	munin-run	09:55:00	1
3883169	99	47	37,8	cyclictest	3976262	-21	ssh	10:20:00	1
3883169	99	47	37,7	cyclictest	4082677	-21	/usr/sbin/munin	12:20:36	1
3883169	99	47	36,8	cyclictest	4048992	-21	kworker/u4:1-rpciod	11:45:25	1
3883167	99	47	38,7	cyclictest	3919426	-21	gltestperf	09:15:21	0
3883167	99	47	37,7	cyclictest	4025692	-21	kernelversion	11:15:23	0
3883167	99	47	29,11	cyclictest	3914174	-21	diskmemload	12:05:53	0
3883167	99	47	27,14	cyclictest	0	-21	swapper/0	07:50:09	0
3883169	99	46	40,4	cyclictest	3914555	-21	aten_r7power_cu	09:10:18	1
3883169	99	46	39,5	cyclictest	4017414	-21	mailstats	11:05:38	1
3883169	99	46	39,5	cyclictest	3905224	-21	apt	08:35:00	1
3883169	99	46	39,4	cyclictest	3949807	-21	latency_hist	09:50:01	1
3883169	99	46	38,6	cyclictest	3914128	-21	systemd	09:05:42	1
3883169	99	46	37,6	cyclictest	3982199	-21	timerwakeupswit	10:25:40	1
3883169	99	46	36,4	cyclictest	0	-21	swapper/1	09:40:41	1
3883169	99	46	35,8	cyclictest	0	-21	swapper/1	11:00:26	1
3883169	99	46	35,8	cyclictest	0	-21	swapper/1	11:00:25	1
3883167	99	46	36,6	cyclictest	4033998	-21	hostname	11:25:17	0
3883167	99	46	26,17	cyclictest	0	-21	swapper/0	08:35:00	0
3883169	99	45	36,7	cyclictest	4036404	-21	kworker/u4:16+rpciod	11:50:35	1
3883169	99	45	36,7	cyclictest	3999756	-21	processes	10:45:36	1
3883169	99	45	36,7	cyclictest	3995528	-21	timerwakeupswit	10:40:39	1
3883167	99	45	35,8	cyclictest	3912892	-21	cron	09:05:00	0
3883169	99	44	38,4	cyclictest	4090556	-21	cut	12:30:14	1
3883167	99	44	36,5	cyclictest	3907761	-21	kworker/u4:11-rpciod	08:55:17	0
3883169	99	43	36,5	cyclictest	4027515	-21	kworker/u4:5+events_unbound	11:20:59	1
3883169	99	43	32,8	cyclictest	0	-21	swapper/1	10:10:24	1
3883169	99	43	32,7	cyclictest	0	-21	swapper/1	08:20:21	1
3883167	99	43	34,7	cyclictest	3898746	-21	cron	08:10:01	0
3883167	99	43	25,15	cyclictest	0	-21	swapper/0	08:25:01	0
3883169	99	42	35,5	cyclictest	3885334	-21	sendmail_mailqu	07:15:36	1
3883169	99	42	34,6	cyclictest	4036399	-21	ssh	11:27:38	1
3883169	99	41	32,6	cyclictest	3903958	-21	munin-plugin-st	08:30:01	1
3883169	99	41	32,6	cyclictest	0	-21	swapper/1	08:40:21	1
3883169	99	41	28,10	cyclictest	0	-21	swapper/1	07:35:17	1
3883167	99	41	33,6	cyclictest	3883423	-21	aten_r7power_po	07:10:27	0
3883169	99	40	32,6	cyclictest	3878161	-21	kworker/u4:0+events_unbound	08:17:00	1
3883169	99	40	32,6	cyclictest	3658893	-21	kworker/u4:9+events_unbound	08:53:00	1
3883167	99	40	31,6	cyclictest	3905394	-21	aten2__	08:35:16	0
3883167	99	39	31,5	cyclictest	3898716	-21	kworker/u4:2-nfsiod	08:25:28	0
3883167	99	39	30,6	cyclictest	0	-21	swapper/0	08:50:32	0
3883169	99	38	30,5	cyclictest	3884394	-21	kworker/u4:12-rpciod	07:35:00	1
3883169	99	37	31,4	cyclictest	0	-21	swapper/1	08:05:21	1
3883169	99	29	19,7	cyclictest	0	-21	swapper/1	07:10:01	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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