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 Apr 01, 2026 00:44:09)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
4006498	99	104	97,5	cyclictest	4154578	-21	kworker/u4:5+events_unbound	23:52:13	1
4006498	99	101	94,5	cyclictest	4053135	-21	kworker/u4:5+events_unbound	22:26:56	1
4006498	99	101	94,5	cyclictest	4020527	-21	kworker/u4:14+events_unbound	20:21:31	1
4006498	99	92	85,5	cyclictest	4150092	-21	kworker/u4:2+events_unbound	00:07:16	1
4006498	99	92	85,5	cyclictest	4070427	-21	kworker/u4:8+events_unbound	22:01:50	1
4006498	99	92	84,5	cyclictest	4029536	-21	kworker/u4:15+events_unbound	20:56:39	1
4006498	99	89	82,5	cyclictest	4049246	-21	kworker/u4:2+events_unbound	21:36:43	1
4006498	99	86	79,5	cyclictest	4101731	-21	kworker/u4:1+events_unbound	22:36:56	1
4006498	99	84	77,5	cyclictest	4132249	-21	kworker/u4:10+events_unbound	23:22:06	1
4006498	99	84	75,6	cyclictest	15025	-21	ps	00:25:39	1
4006498	99	81	74,5	cyclictest	3997821	-21	kworker/u4:5+events_unbound	19:11:20	1
4006498	99	79	72,5	cyclictest	4033364	-21	kworker/u4:6+events_unbound	20:51:37	1
4006498	99	78	72,4	cyclictest	4034642	-21	kworker/u4:0+events_unbound	21:06:40	1
4006498	99	75	68,5	cyclictest	4020523	-21	kworker/u4:5+events_unbound	20:26:34	1
4006498	99	75	62,5	cyclictest	4003991	-21	kworker/u4:0+events_unbound	19:21:22	1
4006498	99	75	61,6	cyclictest	4171699	-21	kworker/u4:12+events_unbound	00:37:19	1
4006498	99	74	65,7	cyclictest	4118910	-21	kworker/u4:4+events_unbound	22:52:00	1
4006498	99	73	54,10	cyclictest	4068470	-21	apt-get	21:45:09	1
4006497	99	72	62,7	cyclictest	4044696	-21	kworker/u4:0+events_unbound	21:26:42	0
4006497	99	72	60,9	cyclictest	4066610	-21	kworker/u4:4+events_unbound	22:06:51	0
4006498	99	71	64,5	cyclictest	4016679	-21	kworker/u4:2+events_unbound	19:51:26	1
4006497	99	66	55,9	cyclictest	53	-21	kswapd0	21:45:07	0
4006497	99	65	54,9	cyclictest	53	-21	kswapd0	00:05:11	0
4006497	99	65	52,10	cyclictest	53	-21	kswapd0	21:30:10	0
4006498	99	64	49,7	cyclictest	4132249	-21	kworker/u4:10+events_unbound	23:02:00	1
4006497	99	63	44,17	cyclictest	4147531	-21	apt-get	23:15:01	0
4006498	99	62	55,5	cyclictest	3992621	-21	kworker/u4:2+events_unbound	19:31:23	1
4006497	99	62	39,20	cyclictest	4068471	-21	latency_hist	21:45:01	0
4006498	99	61	48,4	cyclictest	4037300	-21	kworker/u4:7+events_unbound	21:42:42	1
4006497	99	61	24,20	cyclictest	23483	-21	ssh	00:35:27	0
4006498	99	60	50,7	cyclictest	315	-21	systemd-journal	23:07:01	1
4006497	99	59	50,6	cyclictest	4132247	-21	kworker/u4:5+events_unbound	23:00:00	0
4006497	99	59	13,18	cyclictest	4104787	-21	ntpq	22:25:35	0
4006497	99	58	40,16	cyclictest	53	-21	kswapd0	22:45:07	0
4006497	99	58	25,30	cyclictest	4090717	-21	apt-get	22:10:12	0
4006498	99	57	41,5	cyclictest	4163420	-21	kworker/u4:0+events_unbound	23:38:00	1
4006497	99	57	48,6	cyclictest	4047064	-21	/usr/sbin/munin	21:20:21	0
4006497	99	57	35,6	cyclictest	4117467	-21	fschecks_time	22:40:18	0
4006498	99	56	49,5	cyclictest	4020523	-21	kworker/u4:5+events_unbound	20:11:31	1
4006498	99	56	42,6	cyclictest	4019224	-21	kworker/u4:1+events_unbound	20:17:00	1
4006497	99	56	47,7	cyclictest	4083997	-21	sshd	22:01:49	0
4006497	99	56	44,8	cyclictest	14290	-21	df	00:25:19	0
4006498	99	55	47,6	cyclictest	4134348	-21	idleruntime-cro	22:59:59	1
4006498	99	55	45,7	cyclictest	4110424	-21	systemd	22:31:54	1
4006497	99	55	7,22	cyclictest	4182604	-21	cat	23:55:00	0
4006497	99	55	49,4	cyclictest	4037302	-21	kworker/u4:9+events_unbound	21:10:01	0
4006497	99	55	47,6	cyclictest	4112722	-21	/usr/sbin/munin	22:35:14	0
4006497	99	55	47,5	cyclictest	3982005	-21	kworker/u4:4+events_unbound	20:30:01	0
4006497	99	55	44,8	cyclictest	4006496	-21	cyclictest	22:23:17	0
4006498	99	54	45,7	cyclictest	0	-21	swapper/1	21:55:29	1
4006498	99	54	40,6	cyclictest	4007726	-21	kworker/u4:12+events_unbound	19:17:02	1
4006498	99	54	37,6	cyclictest	2672	-21	kworker/u4:1+events_unbound	00:18:59	1
4006498	99	54	37,6	cyclictest	2672	-21	kworker/u4:1+events_unbound	00:18:59	1
4006497	99	54	45,6	cyclictest	256	50	irq/23-42890000.ethernet	22:50:25	0
4006497	99	54	43,8	cyclictest	4165339	-21	aten2__	23:35:14	0
4006497	99	54	43,7	cyclictest	4187946	-21	ld	00:00:29	0
4006497	99	54	42,9	cyclictest	4009416	-21	df_abs	19:20:19	0
4006497	99	54	15,13	cyclictest	4161689	-21	ntpq	23:30:29	0
4006498	99	53	47,4	cyclictest	7768	-21	kworker/u4:0+events_unbound	00:22:18	1
4006498	99	53	45,6	cyclictest	4106184	-21	kworker/u4:3+events_unbound	22:40:59	1
4006498	99	53	42,9	cyclictest	4052615	-21	sh	21:25:59	1
4006497	99	53	43,7	cyclictest	4074304	-21	/usr/sbin/munin	21:50:39	0
4006497	99	53	41,7	cyclictest	4135394	-21	ld	23:00:29	0
4006497	99	53	39,9	cyclictest	4028276	-21	modprobe	20:35:01	0
4006497	99	53	39,10	cyclictest	4063408	-21	ssh	21:39:01	0
4006498	99	52	44,6	cyclictest	4145648	-21	kworker/u4:8+events_unbound	23:19:00	1
4006498	99	52	38,5	cyclictest	20499	-21	kworker/u4:13+events_unbound	00:33:42	1
4006497	99	52	44,6	cyclictest	4020524	-21	kworker/u4:9+events_unbound	20:36:35	0
4006497	99	52	35,15	cyclictest	4019269	-21	munin-plugin-st	19:59:59	0
4006497	99	51	37,10	cyclictest	4152477	-21	df_abs	23:20:17	0
4006497	99	51	32,16	cyclictest	4174029	-21	/usr/sbin/munin	23:45:20	0
4006497	99	51	19,12	cyclictest	4024276	-21	grep	20:15:38	0
4006497	99	51	17,11	cyclictest	0	-21	swapper/0	23:05:30	0
4006498	99	50	43,5	cyclictest	4145645	-21	kworker/u4:4+events_unbound	23:55:58	1
4006498	99	50	43,5	cyclictest	4044696	-21	kworker/u4:0+events_unbound	21:30:14	1
4006498	99	50	42,6	cyclictest	4163421	-21	kworker/u4:3+events_unbound	23:35:00	1
4006498	99	50	33,9	cyclictest	0	-21	swapper/1	20:35:00	1
4006497	99	50	9,14	cyclictest	20287	-21	ssh	00:31:32	0
4006497	99	50	6,23	cyclictest	4109625	-21	users	22:30:39	0
4006497	99	50	6,20	cyclictest	1483	-21	netstat	00:10:22	0
4006497	99	50	42,6	cyclictest	4011602	-21	idleruntime-cro	19:30:00	0
4006497	99	50	42,5	cyclictest	4032535	-21	fschecks_count	20:50:18	0
4006497	99	50	4,23	cyclictest	6018	-21	ntpq	00:15:30	0
4006497	99	50	4,23	cyclictest	6018	-21	ntpq	00:15:29	0
4006497	99	50	41,6	cyclictest	4170730	-21	sendmail_mailqu	23:40:42	0
4006497	99	50	39,8	cyclictest	4042539	-21	fschecks_time	21:15:19	0
4006497	99	49	8,18	cyclictest	9355	-21	apt-get	00:20:06	0
4006497	99	49	6,27	cyclictest	4038123	-21	expr	21:10:21	0
4006497	99	49	35,8	cyclictest	256	50	irq/23-42890000.ethernet	22:15:13	0
4006497	99	49	11,13	cyclictest	4158905	-21	ssh	23:27:15	0
4006498	99	48	41,5	cyclictest	4073470	-21	fschecks_count	21:50:20	1
4006498	99	48	40,6	cyclictest	4189488	-21	systemd	00:02:13	1
4006498	99	48	40,6	cyclictest	4095549	-21	gltestperf	22:15:18	1
4006498	99	48	40,6	cyclictest	4020959	-21	fschecks_count	20:05:20	1
4006498	99	48	38,8	cyclictest	4015439	-21	munin-run	19:45:00	1
4006498	99	48	38,8	cyclictest	4015439	-21	munin-run	19:45:00	1
4006497	99	48	9,15	cyclictest	4022577	-21	ntpq	20:10:26	0
4006497	99	48	7,14	cyclictest	4025177	-21	ntpq	20:20:29	0
4006497	99	48	38,7	cyclictest	0	-21	swapper/0	23:55:25	0
4006497	99	48	27,17	cyclictest	0	-21	swapper/0	19:40:01	0
4006497	99	48	20,9	cyclictest	0	-21	swapper/0	20:40:18	0
4006498	99	47	40,5	cyclictest	4049246	-21	kworker/u4:2+events_unbound	22:06:01	1
4006498	99	47	39,6	cyclictest	4163420	-21	kworker/u4:0+events_unbound	23:48:00	1
4006498	99	47	38,6	cyclictest	0	-21	swapper/1	22:20:37	1
4006498	99	47	36,8	cyclictest	0	-21	swapper/1	22:45:35	1
4006497	99	47	41,3	cyclictest	256	50	irq/23-42890000.ethernet	21:00:03	0
4006497	99	47	36,8	cyclictest	4033830	-21	fschecks_count	20:55:19	0
4006497	99	47	36,8	cyclictest	4032038	-21	unixbench_singl	20:45:37	0
4006497	99	47	36,7	cyclictest	4016678	-21	kworker/u4:0-rpciod	20:00:21	0
4006497	99	47	19,5	cyclictest	15	1	ktimers/0	21:55:19	0
4006498	99	46	39,5	cyclictest	4049246	-21	kworker/u4:2+events_unbound	22:10:03	1
4006498	99	46	37,7	cyclictest	3203	-21	systemd	00:12:14	1
4006498	99	46	37,6	cyclictest	4141179	-21	kworker/u4:2+rpciod	23:10:21	1
4006497	99	46	37,7	cyclictest	4021805	-21	cron	20:10:00	0
4006497	99	46	24,18	cyclictest	4016173	-21	ntpq	19:45:25	0
4006497	99	46	24,18	cyclictest	0	-21	swapper/0	23:15:45	0
4006498	99	45	39,4	cyclictest	4028743	-21	fschecks_count	20:35:18	1
4006498	99	45	38,5	cyclictest	4046909	-21	/usr/sbin/munin	21:20:17	1
4006498	99	45	37,6	cyclictest	4173764	-21	ssh	23:45:00	1
4006498	99	45	36,7	cyclictest	4042233	-21	aten_r7power_en	21:15:16	1
4006498	99	45	30,5	cyclictest	4006432	-21	kworker/u4:8+events_unbound	19:57:02	1
4006497	99	45	20,16	cyclictest	4007917	-21	apt-get	19:15:12	0
4006498	99	44	38,4	cyclictest	4038294	-21	ntp_kernel_err	21:10:24	1
4006498	99	44	35,7	cyclictest	4032253	-21	latency_hist	20:50:02	1
4006497	99	44	35,7	cyclictest	4016890	-21	aten2__	19:50:15	0
4006498	99	43	37,5	cyclictest	4150092	-21	kworker/u4:2+events_unbound	23:26:59	1
4006498	99	43	36,5	cyclictest	4010736	-21	fschecks_count	19:25:19	1
4006497	99	43	33,7	cyclictest	4007473	-21	switchtime	19:10:36	0
4006497	99	43	31,9	cyclictest	4015401	-21	systemd	19:41:24	0
4006497	99	43	31,9	cyclictest	4015401	-21	systemd	19:41:23	0
4006498	99	42	34,5	cyclictest	4015791	-21	sed	19:45:15	1
4006498	99	42	33,7	cyclictest	4030826	-21	systemd	20:41:35	1
4006497	99	42	20,19	cyclictest	4012355	-21	ntpq	19:30:27	0
4006498	99	41	35,4	cyclictest	4006432	-21	kworker/u4:8+events_unbound	19:36:58	1
4006498	99	41	32,7	cyclictest	4019499	-21	aten_r7power_cu	20:00:15	1
4006498	99	40	33,5	cyclictest	4034678	-21	apt-get	21:00:07	1
4006497	99	35	6,10	cyclictest	4006477	-21	munin-run	19:10:01	0
4006498	99	32	21,9	cyclictest	17	1	rcu_preempt	19:10:02	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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