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 792 highest latencies:

System rack7slot2.osadl.org (updated Wed Dec 24, 2025 12:44:12)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
3710435	99	119	86,15	cyclictest	53	-21	kswapd0	10:30:09	0
3710437	99	111	96,13	cyclictest	3831256	-21	kworker/u4:5+events_unbound	11:00:27	1
3710435	99	90	83,5	cyclictest	3711653	-21	kworker/u4:3+events_unbound	08:00:04	0
3710435	99	90	82,6	cyclictest	3718045	-21	kworker/u4:0+events_unbound	07:50:03	0
3710435	99	89	82,5	cyclictest	3718045	-21	kworker/u4:0+events_unbound	08:10:06	0
3710437	99	84	77,5	cyclictest	3881437	-21	kworker/u4:7+events_unbound	12:00:01	1
3710437	99	80	69,7	cyclictest	3801000	-21	sh	10:20:37	1
3710437	99	74	21,27	cyclictest	3814899	-21	kworker/u4:1-rpciod	10:55:40	1
3710437	99	73	27,26	cyclictest	0	-21	swapper/1	11:40:37	1
3710437	99	71	2,43	cyclictest	3906662	-21	ssh	12:27:26	1
3710435	99	71	42,18	cyclictest	53	-21	kswapd0	10:10:20	0
3710437	99	70	25,26	cyclictest	0	-21	swapper/1	12:00:30	1
3710435	99	70	58,6	cyclictest	256	50	irq/23-42890000.ethernet	07:10:00	0
3710437	99	69	60,7	cyclictest	3735941	-21	kworker/u4:1+events_unbound	09:05:14	1
3710437	99	69	2,16	cyclictest	3724646	-21	apt-get	08:05:12	1
3710437	99	68	54,8	cyclictest	0	-21	swapper/1	09:10:34	1
3710437	99	68	18,31	cyclictest	3891925	-21	aten_r7power_vo	12:10:18	1
3710437	99	67	50,12	cyclictest	3783075	-21	modprobe	10:00:01	1
3710437	99	67	42,23	cyclictest	3783586	-21	cut	10:00:19	1
3710437	99	67	37,27	cyclictest	521	-21	in:imuxsock	12:15:25	1
3710437	99	67	2,39	cyclictest	3755586	-21	ssh	09:25:49	1
3710435	99	67	61,5	cyclictest	3723151	-21	kworker/u4:12+events_unbound	08:17:01	0
3710437	99	66	36,27	cyclictest	3854353	-21	aten_r7power_po	11:25:16	1
3710437	99	66	3,60	cyclictest	3767676	-21	ps	09:40:38	1
3710437	99	66	32,27	cyclictest	0	-21	swapper/1	12:05:31	1
3710437	99	66	31,31	cyclictest	3735722	-21	timerandwakeup	08:45:39	1
3710437	99	66	2,13	cyclictest	3732895	-21	ntpq	08:35:27	1
3710437	99	66	12,33	cyclictest	3759398	-21	mailstats	09:30:39	1
3710437	99	65	57,6	cyclictest	3902116	-21	kworker/u4:0+events_unbound	12:35:41	1
3710437	99	65	57,6	cyclictest	3902116	-21	kworker/u4:0+events_unbound	12:35:41	1
3710437	99	65	3,57	cyclictest	1058	-21	snmpd	08:50:30	1
3710437	99	65	2,13	cyclictest	3772748	-21	ssh	09:46:35	1
3710437	99	65	1,43	cyclictest	3903813	-21	ssh	12:24:42	1
3710437	99	64	1,14	cyclictest	3788362	-21	ntpq	10:05:28	1
3710437	99	63	3,55	cyclictest	3859350	-21	ps	11:30:40	1
3710437	99	63	29,31	cyclictest	3812246	-21	latency_hist	10:35:02	1
3710437	99	63	14,30	cyclictest	3852853	-21	ssh	11:23:12	1
3710435	99	63	26,30	cyclictest	256	50	irq/23-42890000.ethernet	09:35:11	0
3710435	99	63	26,30	cyclictest	256	50	irq/23-42890000.ethernet	09:35:11	0
3710437	99	62	3,53	cyclictest	3711147	-21	sed	07:10:23	1
3710437	99	62	33,26	cyclictest	0	-21	swapper/1	09:35:44	1
3710437	99	62	33,26	cyclictest	0	-21	swapper/1	09:35:44	1
3710437	99	62	1,56	cyclictest	3817378	-21	ssh	10:40:26	1
3710437	99	61	32,26	cyclictest	3711661	-21	kworker/u4:9-rpciod	07:30:20	1
3710437	99	61	30,28	cyclictest	3723185	-21	apt	08:00:02	1
3710437	99	61	30,26	cyclictest	3724444	-21	kworker/u4:14+rpciod	08:40:16	1
3710437	99	61	29,29	cyclictest	0	-21	swapper/1	11:15:15	1
3710437	99	61	28,29	cyclictest	0	-21	swapper/1	10:45:30	1
3710437	99	61	26,32	cyclictest	0	-21	swapper/1	07:40:02	1
3710437	99	61	12,28	cyclictest	3840225	-21	ssh	11:07:59	1
3710437	99	60	31,25	cyclictest	0	-21	swapper/1	11:50:01	1
3710437	99	60	27,29	cyclictest	0	-21	swapper/1	10:10:37	1
3710437	99	60	2,54	cyclictest	3825773	-21	ssh	10:50:29	1
3710437	99	60	20,33	cyclictest	3862512	-21	ssh	11:35:16	1
3710435	99	60	53,5	cyclictest	3860263	-21	kworker/u4:12+events_unbound	11:45:02	0
3710435	99	60	49,5	cyclictest	3902116	-21	kworker/u4:0+events_unbound	12:36:01	0
3710435	99	60	49,5	cyclictest	3902116	-21	kworker/u4:0+events_unbound	12:36:00	0
3710437	99	59	5,47	cyclictest	3775893	-21	ssh	09:50:35	1
3710437	99	59	3,49	cyclictest	3745718	-21	/usr/sbin/munin	09:15:24	1
3710437	99	59	32,23	cyclictest	3728550	-21	aten_r7power_cu	08:20:15	1
3710437	99	59	27,26	cyclictest	0	-21	swapper/1	11:50:24	1
3710435	99	59	44,9	cyclictest	0	-21	swapper/0	12:05:14	0
3710437	99	58	36,19	cyclictest	3738828	-21	aten2__	09:00:29	1
3710437	99	58	3,51	cyclictest	3796701	-21	ntpq	10:15:33	1
3710437	99	58	2,52	cyclictest	3909258	-21	ntpq	12:30:33	1
3710437	99	58	2,50	cyclictest	3750061	-21	apt-get	09:20:16	1
3710437	99	58	2,50	cyclictest	3750061	-21	apt-get	09:20:16	1
3710437	99	58	2,14	cyclictest	3738044	-21	ntpq	08:55:32	1
3710437	99	58	1,53	cyclictest	3813206	-21	ssh	10:35:27	1
3710437	99	58	10,27	cyclictest	3844729	-21	ssh	11:13:35	1
3710435	99	58	52,5	cyclictest	3764698	-21	kworker/u4:9+events_unbound	09:40:03	0
3710435	99	58	50,6	cyclictest	3797987	-21	kworker/u4:8+events_unbound	10:17:01	0
3710435	99	58	47,9	cyclictest	3895782	-21	latency_hist	12:15:02	0
3710437	99	57	1,7	cyclictest	3723374	-21	apt-get	08:00:11	1
3710435	99	57	37,17	cyclictest	3797983	-21	kworker/u4:0-rpciod	10:25:01	0
3710437	99	56	3,49	cyclictest	3720121	-21	ntpq	07:45:26	1
3710435	99	56	47,7	cyclictest	3856643	-21	kworker/u4:2+events_unbound	11:40:02	0
3710437	99	55	25,26	cyclictest	0	-21	swapper/1	08:10:30	1
3710437	99	55	24,27	cyclictest	0	-21	swapper/1	07:15:25	1
3710437	99	55	22,29	cyclictest	0	-21	swapper/1	10:25:18	1
3710437	99	55	11,39	cyclictest	3721362	-21	awk	07:50:23	1
3710435	99	55	48,5	cyclictest	3730837	-21	kworker/u4:15+events_unbound	09:30:02	0
3710435	99	55	47,6	cyclictest	3743315	-21	kworker/u4:2+events_unbound	09:17:01	0
3710435	99	55	46,7	cyclictest	3817253	-21	/usr/sbin/munin	10:40:23	0
3710437	99	54	2,46	cyclictest	3715013	-21	ntpq	07:25:26	1
3710437	99	54	1,47	cyclictest	3710545	-21	latency_hist	07:10:01	1
3710437	99	53	2,47	cyclictest	3718868	-21	ntpq	07:40:28	1
3710437	99	53	1,5	cyclictest	3730371	-21	ntpq	08:25:28	1
3710437	99	53	12,36	cyclictest	3728215	-21	grep	08:15:39	1
3710435	99	53	46,5	cyclictest	3773186	-21	kworker/u4:4+events_unbound	10:00:03	0
3710435	99	53	46,5	cyclictest	3495227	-21	kworker/u4:1+events_unbound	07:46:59	0
3710435	99	53	45,6	cyclictest	3868723	-21	kworker/u4:4+events_unbound	11:50:36	0
3710435	99	52	44,6	cyclictest	3859080	-21	ntpq	11:30:30	0
3710435	99	52	44,6	cyclictest	3854625	-21	fschecks_time	11:25:20	0
3710437	99	51	3,2	cyclictest	0	-21	swapper/1	07:20:18	1
3710435	99	51	45,5	cyclictest	3726992	-21	kworker/u4:5+events_unbound	08:30:03	0
3710435	99	51	45,5	cyclictest	3726992	-21	kworker/u4:5+events_unbound	08:30:03	0
3710435	99	51	44,5	cyclictest	3734671	-21	kworker/u4:4+events_unbound	08:50:02	0
3710435	99	51	44,5	cyclictest	3734670	-21	kworker/u4:2+events_unbound	08:45:00	0
3710435	99	51	44,5	cyclictest	3709161	-21	kworker/u4:2+events_unbound	07:40:03	0
3710435	99	51	41,6	cyclictest	3902116	-21	kworker/u4:0-rpciod	12:28:54	0
3710435	99	51	27,21	cyclictest	0	-21	swapper/0	10:50:41	0
3710437	99	50	1,12	cyclictest	3731667	-21	ntpq	08:31:16	1
3710437	99	50	1,12	cyclictest	3731667	-21	ntpq	08:31:15	1
3710435	99	50	7,36	cyclictest	0	-21	swapper/0	11:40:10	0
3710435	99	50	43,5	cyclictest	3743315	-21	kworker/u4:2+events_unbound	09:14:00	0
3710435	99	50	43,5	cyclictest	3711662	-21	kworker/u4:10+events_unbound	07:18:00	0
3710435	99	50	33,15	cyclictest	0	-21	swapper/0	12:30:19	0
3710435	99	49	42,5	cyclictest	3754532	-21	fschecks_count	09:25:20	0
3710435	99	49	41,6	cyclictest	3834556	-21	timerwakeupswit	11:00:42	0
3710435	99	49	35,6	cyclictest	3835488	-21	kworker/u4:9+events_unbound	11:06:03	0
3710435	99	49	28,19	cyclictest	3771268	-21	fschecks_time	09:45:18	0
3710435	99	48	41,5	cyclictest	3842480	-21	ntpq	11:10:30	0
3710435	99	48	40,6	cyclictest	3797984	-21	kworker/u4:2+events_unbound	10:35:03	0
3710435	99	48	39,6	cyclictest	3718089	-21	munin-plugin-st	07:40:00	0
3710435	99	47	40,6	cyclictest	3724445	-21	kworker/u4:16+events_unbound	08:46:02	0
3710435	99	47	40,5	cyclictest	3821321	-21	gltestperf	10:45:19	0
3710435	99	47	39,6	cyclictest	3735941	-21	kworker/u4:1+events_unbound	09:05:02	0
3710435	99	47	39,6	cyclictest	3729880	-21	aten_r7power_vo	08:25:17	0
3710435	99	47	36,9	cyclictest	3829671	-21	gltestperf	10:55:22	0
3710435	99	47	33,12	cyclictest	3732705	-21	head	08:35:20	0
3710435	99	47	31,7	cyclictest	3872962	-21	kworker/u4:2+events_unbound	12:02:33	0
3710435	99	46	39,5	cyclictest	3735940	-21	kworker/u4:0+events_unbound	09:00:03	0
3710435	99	46	38,6	cyclictest	3779328	-21	aten_r7power_en	09:55:17	0
3710435	99	46	3,7	cyclictest	0	-21	swapper/0	09:20:13	0
3710435	99	46	3,7	cyclictest	0	-21	swapper/0	09:20:12	0
3710435	99	46	37,6	cyclictest	3775506	-21	cut	09:50:26	0
3710435	99	46	36,7	cyclictest	0	-21	swapper/0	11:20:28	0
3710435	99	46	34,9	cyclictest	53	-21	kswapd0	11:55:35	0
3710435	99	46	33,10	cyclictest	3710432	-21	cyclictest	12:22:47	0
3710435	99	46	26,17	cyclictest	0	-21	swapper/0	08:05:17	0
3710435	99	45	39,5	cyclictest	3726992	-21	kworker/u4:5+events_unbound	08:23:00	0
3710435	99	45	39,4	cyclictest	53	-21	kswapd0	12:15:11	0
3710435	99	45	38,5	cyclictest	3835487	-21	kworker/u4:8-rpciod	11:15:28	0
3710435	99	45	36,7	cyclictest	0	-21	swapper/0	10:25:23	0
3710435	99	44	38,4	cyclictest	3710906	-21	fschecks_time	07:10:18	0
3710435	99	44	37,5	cyclictest	3711659	-21	kworker/u4:4+events_unbound	07:24:43	0
3710435	99	43	36,5	cyclictest	3787621	-21	ssh	10:05:15	0
3710435	99	43	36,5	cyclictest	3715964	-21	fschecks_count	07:30:20	0
3710435	99	43	36,5	cyclictest	3711653	-21	kworker/u4:3+events_unbound	07:58:00	0
3710435	99	42	34,5	cyclictest	3737766	-21	gltestperf	08:55:23	0
3710435	99	40	31,7	cyclictest	3714728	-21	fschecks_time	07:25:19	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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