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 Sun May 17, 2026 00:44:08)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
3379459	99	94	86,6	cyclictest	3402776	-21	kworker/u4:2+events_unbound	20:42:58	0
3379459	99	94	86,6	cyclictest	3402774	-21	kworker/u4:0+events_unbound	20:57:58	0
3379459	99	93	86,5	cyclictest	3478565	-21	kworker/u4:5+events_unbound	22:28:12	0
3379459	99	89	81,6	cyclictest	3452611	-21	kworker/u4:3+events_unbound	21:58:08	0
3379459	99	86	79,5	cyclictest	3405349	-21	kworker/u4:1+events_unbound	20:47:57	0
3379459	99	86	78,6	cyclictest	3385801	-21	kworker/u4:4+events_unbound	20:02:50	0
3379459	99	84	77,5	cyclictest	3402776	-21	kworker/u4:2+events_unbound	21:02:58	0
3379459	99	81	74,5	cyclictest	3388543	-21	kworker/u4:13+events_unbound	19:57:49	0
3379459	99	81	74,5	cyclictest	3379386	-21	kworker/u4:7+events_unbound	19:27:45	0
3379459	99	80	72,6	cyclictest	3352261	-21	kworker/u4:9+events_unbound	19:17:43	0
3379459	99	80	54,23	cyclictest	53	-21	kswapd0	22:35:09	0
3379460	99	79	45,31	cyclictest	3502387	-21	wc	22:55:06	1
3379459	99	78	70,6	cyclictest	3557023	-21	kworker/u4:12+events_unbound	23:58:27	0
3379459	99	78	70,6	cyclictest	3557023	-21	kworker/u4:12+events_unbound	23:58:26	0
3379460	99	77	71,4	cyclictest	3561476	-21	kworker/u4:6+events_unbound	00:03:27	1
3379459	99	76	62,9	cyclictest	0	-21	swapper/0	00:30:11	0
3379460	99	75	22,51	cyclictest	3489563	-21	sh	22:40:12	1
3379460	99	74	38,33	cyclictest	3424732	-21	grep	21:25:22	1
3379459	99	72	2,22	cyclictest	3428757	-21	ssh	21:30:26	0
3379460	99	70	2,23	cyclictest	3437050	-21	ssh	21:40:01	1
3379460	99	69	3,13	cyclictest	3419794	-21	apt-get	21:20:11	1
3379459	99	69	60,6	cyclictest	53	-21	kswapd0	22:50:22	0
3379460	99	68	37,29	cyclictest	3450904	-21	gltestperf	21:55:25	1
3379460	99	68	36,29	cyclictest	3395134	-21	ls	20:10:01	1
3379460	99	67	2,23	cyclictest	3441655	-21	ssh	21:45:13	1
3379459	99	67	59,6	cyclictest	3482986	-21	kworker/u4:7+events_unbound	22:48:13	0
3379460	99	66	55,8	cyclictest	3380680	-21	kworker/u4:8+events_unbound	19:50:00	1
3379460	99	66	41,22	cyclictest	3542979	-21	ssh	23:40:39	1
3379460	99	66	35,28	cyclictest	3419494	-21	munin-run	21:20:01	1
3379460	99	66	33,31	cyclictest	3495156	-21	unixbench_multi	22:45:39	1
3379460	99	66	33,27	cyclictest	0	-21	swapper/1	00:10:18	1
3379460	99	66	3,15	cyclictest	3516558	-21	ssh	23:10:35	1
3379460	99	65	30,31	cyclictest	0	-21	swapper/1	22:55:37	1
3379460	99	65	27,34	cyclictest	0	-21	swapper/1	22:00:27	1
3379460	99	65	26,35	cyclictest	3379521	-21	ls	19:10:02	1
3379460	99	65	2,14	cyclictest	3477422	-21	ntpq	22:25:37	1
3379459	99	65	53,5	cyclictest	3383261	-21	kworker/u4:15+events_unbound	19:51:00	0
3379460	99	64	5,8	cyclictest	3590583	-21	ntpq	00:35:35	1
3379460	99	64	56,6	cyclictest	3407978	-21	kworker/u4:13+events_unbound	21:07:59	1
3379460	99	64	55,6	cyclictest	3401500	-21	kworker/u4:18+events_unbound	21:13:00	1
3379460	99	64	29,32	cyclictest	0	-21	swapper/1	23:50:41	1
3379460	99	64	29,29	cyclictest	0	-21	swapper/1	23:50:02	1
3379460	99	63	42,19	cyclictest	3512309	-21	sendmail_mailqu	23:05:36	1
3379460	99	63	36,23	cyclictest	3574716	-21	kworker/u4:1-rpciod	00:25:44	1
3379460	99	63	33,26	cyclictest	3457076	-21	kworker/u4:6-rpciod	22:16:58	1
3379460	99	63	3,10	cyclictest	3521087	-21	ssh	23:15:39	1
3379460	99	63	3,10	cyclictest	3521087	-21	ssh	23:15:38	1
3379460	99	63	27,32	cyclictest	0	-21	swapper/1	23:35:16	1
3379460	99	62	37,23	cyclictest	3529285	-21	gltestperf	23:25:21	1
3379460	99	62	3,23	cyclictest	3485921	-21	ntpq	22:35:31	1
3379460	99	62	32,27	cyclictest	0	-21	swapper/1	00:20:16	1
3379460	99	62	31,28	cyclictest	3563899	-21	aten_r7power_vo	00:05:17	1
3379460	99	62	30,29	cyclictest	0	-21	swapper/1	00:30:37	1
3379459	99	62	4,12	cyclictest	3515717	-21	ssh	23:10:11	0
3379460	99	61	53,6	cyclictest	3422216	-21	kworker/u4:7+events_unbound	21:53:06	1
3379460	99	61	37,22	cyclictest	3404118	-21	munin-run	20:45:01	1
3379460	99	61	28,31	cyclictest	3428852	-21	aten_r7power_cu	21:30:32	1
3379460	99	61	26,31	cyclictest	0	-21	swapper/1	00:15:20	1
3379460	99	60	24,34	cyclictest	0	-21	swapper/1	22:05:21	1
3379460	99	60	2,14	cyclictest	3398586	-21	ps	20:20:36	1
3379460	99	60	12,8	cyclictest	3379385	-21	kworker/u4:6-rpciod	19:25:01	1
3379459	99	60	1,55	cyclictest	0	-21	swapper/0	19:40:33	0
3379460	99	59	43,11	cyclictest	3388572	-21	modprobe	19:45:01	1
3379460	99	59	4,13	cyclictest	3507646	-21	ssh	23:00:26	1
3379460	99	59	28,28	cyclictest	0	-21	swapper/1	23:30:36	1
3379460	99	59	27,27	cyclictest	0	-21	swapper/1	22:30:30	1
3379460	99	59	24,31	cyclictest	3352261	-21	kworker/u4:9+rpciod	19:10:21	1
3379460	99	59	2,13	cyclictest	3473118	-21	ps	22:20:36	1
3379459	99	59	42,7	cyclictest	3391088	-21	kworker/u4:9+events_unbound	20:15:59	0
3379460	99	58	5,6	cyclictest	0	-21	swapper/1	19:15:25	1
3379460	99	58	3,13	cyclictest	3555679	-21	ssh	23:55:26	1
3379460	99	58	3,13	cyclictest	3555679	-21	ssh	23:55:26	1
3379460	99	58	30,25	cyclictest	0	-21	swapper/1	20:00:42	1
3379460	99	58	28,27	cyclictest	0	-21	swapper/1	23:20:37	1
3379460	99	58	25,30	cyclictest	3397378	-21	switchtime	20:15:35	1
3379460	99	57	27,27	cyclictest	0	-21	swapper/1	21:00:00	1
3379460	99	56	17,36	cyclictest	3398958	-21	kworker/u4:6-rpciod	20:25:21	1
3379460	99	56	1,16	cyclictest	3438300	-21	/usr/sbin/munin	21:40:39	1
3379459	99	56	48,6	cyclictest	315	-21	systemd-journal	00:18:28	0
3379460	99	55	4,12	cyclictest	3409310	-21	cron	21:05:00	1
3379460	99	55	1,15	cyclictest	3402283	-21	ntpq	20:35:25	1
3379459	99	55	47,6	cyclictest	3422216	-21	kworker/u4:7+events_unbound	21:48:05	0
3379459	99	55	42,7	cyclictest	3570305	-21	kworker/u4:11+events_unbound	00:23:00	0
3379460	99	54	22,29	cyclictest	0	-21	swapper/1	20:45:26	1
3379459	99	54	46,6	cyclictest	3401500	-21	kworker/u4:18+events_unbound	21:37:59	0
3379459	99	54	45,6	cyclictest	3484911	-21	modprobe	22:35:00	0
3379459	99	54	10,28	cyclictest	3520986	-21	ssh	23:15:36	0
3379459	99	54	10,28	cyclictest	3520986	-21	ssh	23:15:36	0
3379459	99	53	45,6	cyclictest	3570305	-21	kworker/u4:11+events_unbound	00:12:59	0
3379459	99	53	34,17	cyclictest	3538872	-21	grep	23:35:41	0
3379459	99	53	33,17	cyclictest	0	-21	swapper/0	22:10:27	0
3379460	99	52	5,7	cyclictest	0	-21	swapper/1	19:35:36	1
3379460	99	52	3,35	cyclictest	3395291	-21	cat	20:10:12	1
3379460	99	52	22,26	cyclictest	0	-21	swapper/1	20:50:19	1
3379460	99	52	2,14	cyclictest	3464816	-21	ssh	22:10:43	1
3379460	99	52	19,30	cyclictest	3392470	-21	cat	20:00:02	1
3379459	99	52	44,6	cyclictest	3505032	-21	kworker/u4:0+events_unbound	22:59:01	0
3379459	99	52	44,6	cyclictest	3383261	-21	kworker/u4:15+events_unbound	19:36:03	0
3379459	99	52	35,9	cyclictest	0	-21	swapper/0	23:40:39	0
3379460	99	51	17,4	cyclictest	3390765	-21	sendmail_mailst	19:50:35	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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