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 Wed Aug 26, 2026 12:44:11)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
3660483	99	107	100,5	cyclictest	3775067	-21	kworker/u4:14+events_unbound	10:48:54	1
3660483	99	107	100,5	cyclictest	3661705	-21	kworker/u4:9+events_unbound	07:43:11	1
3660483	99	106	98,6	cyclictest	3716515	-21	kworker/u4:11+events_unbound	09:38:38	1
3660483	99	106	98,6	cyclictest	3716515	-21	kworker/u4:11+events_unbound	09:38:38	1
3660483	99	103	95,6	cyclictest	3801636	-21	kworker/u4:6+events_unbound	11:13:59	1
3660483	99	103	85,6	cyclictest	3819838	-21	kworker/u4:13+events_unbound	12:14:13	1
3660483	99	98	89,6	cyclictest	3670743	-21	kworker/u4:7+events_unbound	08:53:26	1
3660483	99	94	85,7	cyclictest	3721118	-21	kworker/u4:10+events_unbound	09:48:41	1
3660483	99	92	84,6	cyclictest	3679702	-21	kworker/u4:4+events_unbound	09:18:35	1
3660483	99	83	75,6	cyclictest	3657971	-21	kworker/u4:0+events_unbound	08:33:19	1
3660482	99	78	17,23	cyclictest	53	-21	kswapd0	11:40:07	0
3660483	99	76	69,5	cyclictest	3451205	-21	kworker/u4:6+events_unbound	08:18:18	1
3660483	99	76	68,6	cyclictest	3682242	-21	kworker/u4:8+events_unbound	09:03:30	1
3660483	99	75	68,5	cyclictest	3801638	-21	kworker/u4:9+events_unbound	11:54:12	1
3660483	99	73	66,5	cyclictest	3650197	-21	kworker/u4:13+events_unbound	07:23:11	1
3660482	99	71	64,5	cyclictest	3759673	-21	gltestperf	10:25:22	0
3660483	99	70	62,6	cyclictest	3666907	-21	kworker/u4:1+events_unbound	08:48:27	1
3660482	99	67	34,6	cyclictest	0	-21	swapper/0	10:55:21	0
3660483	99	66	59,5	cyclictest	3730156	-21	kworker/u4:0+events_unbound	10:13:45	1
3660482	99	66	53,10	cyclictest	53	-21	kswapd0	11:00:17	0
3660483	99	65	53,6	cyclictest	3657973	-21	kworker/u4:2+events_unbound	08:05:01	1
3660483	99	64	56,6	cyclictest	3770504	-21	kworker/u4:6+events_unbound	10:40:02	1
3660483	99	63	55,6	cyclictest	3828889	-21	kworker/u4:7+events_unbound	11:44:10	1
3660483	99	63	55,6	cyclictest	3451205	-21	kworker/u4:6+events_unbound	07:53:15	1
3660482	99	62	53,7	cyclictest	3815269	-21	kworker/u4:5+events_unbound	11:34:05	0
3660482	99	62	48,9	cyclictest	3711904	-21	kworker/u4:8+xprtiod	09:35:11	0
3660482	99	62	48,9	cyclictest	3711904	-21	kworker/u4:8+xprtiod	09:35:10	0
3660482	99	62	3,23	cyclictest	3665818	-21	acpi	07:30:12	0
3660483	99	61	54,5	cyclictest	3703311	-21	kworker/u4:1+events_unbound	09:23:35	1
3660483	99	61	48,10	cyclictest	53	-21	kswapd0	11:35:14	1
3660482	99	61	53,6	cyclictest	3841759	-21	kworker/u4:2+events_unbound	12:05:03	0
3660483	99	60	53,5	cyclictest	3451205	-21	kworker/u4:6+events_unbound	07:33:13	1
3660482	99	60	52,6	cyclictest	3719984	-21	switchtime	09:40:39	0
3660483	99	59	44,12	cyclictest	0	-21	swapper/1	09:55:13	1
3660483	99	58	47,8	cyclictest	3688638	-21	kworker/u4:0	08:59:59	1
3660483	99	58	42,10	cyclictest	3734708	-21	kworker/u4:11+events_unbound	10:00:04	1
3660483	99	57	50,5	cyclictest	3657971	-21	kworker/u4:0+events_unbound	07:13:09	1
3660483	99	57	46,7	cyclictest	0	-21	swapper/1	12:30:23	1
3660483	99	57	45,9	cyclictest	3759542	-21	fschecks_count	10:25:20	1
3660483	99	56	49,5	cyclictest	3657973	-21	kworker/u4:2+events_unbound	07:28:12	1
3660482	99	56	48,6	cyclictest	3801637	-21	kworker/u4:7+events_unbound	11:19:00	0
3660483	99	55	47,6	cyclictest	3854596	-21	kworker/u4:4+events_unbound	12:21:44	1
3660483	99	55	47,6	cyclictest	3854596	-21	kworker/u4:4+events_unbound	12:21:44	1
3660483	99	55	42,8	cyclictest	0	-21	swapper/1	11:45:38	1
3660483	99	54	39,6	cyclictest	3679702	-21	kworker/u4:4+events_unbound	09:25:07	1
3660482	99	54	36,15	cyclictest	3768140	-21	sort	10:35:12	0
3660483	99	53	44,6	cyclictest	3794695	-21	modprobe	11:04:59	1
3660482	99	53	43,7	cyclictest	3779602	-21	kworker/u4:3+events_unbound	10:53:55	0
3660482	99	53	43,7	cyclictest	3779602	-21	kworker/u4:3+events_unbound	10:53:55	0
3660483	99	52	43,6	cyclictest	3790268	-21	idleruntime-cro	11:00:00	1
3660483	99	52	41,5	cyclictest	3810084	-21	kworker/u4:8+events_unbound	11:25:04	1
3660483	99	52	39,9	cyclictest	3804868	-21	ps	11:15:37	1
3660483	99	52	29,15	cyclictest	3727804	-21	ssh	09:50:13	1
3660482	99	52	44,6	cyclictest	3747695	-21	kworker/u4:6+events_unbound	10:20:13	0
3660482	99	52	44,5	cyclictest	3736504	-21	sendmail	10:00:01	0
3660482	99	52	42,7	cyclictest	3871508	-21	diskmemload	12:30:33	0
3660482	99	52	42,7	cyclictest	3686078	-21	kworker/u4:5+events_unbound	09:08:31	0
3660482	99	52	3,28	cyclictest	3813627	-21	ssh	11:25:27	0
3660482	99	52	30,19	cyclictest	3767887	-21	ssh	10:35:01	0
3660482	99	52	30,19	cyclictest	3767887	-21	ssh	10:35:00	0
3660483	99	51	43,6	cyclictest	3850771	-21	kworker/u4:1-rpciod	12:20:00	1
3660483	99	51	37,5	cyclictest	3660413	-21	kworker/u4:7+events_unbound	07:10:02	1
3660482	99	51	33,16	cyclictest	0	-21	swapper/0	11:20:18	0
3660483	99	50	38,9	cyclictest	3764810	-21	timerandwakeup	10:30:40	1
3660483	99	50	38,9	cyclictest	3764810	-21	timerandwakeup	10:30:40	1
3660482	99	50	41,6	cyclictest	3657972	-21	kworker/u4:1+events_unbound	07:18:12	0
3660482	99	50	41,6	cyclictest	3657972	-21	kworker/u4:1+events_unbound	07:18:11	0
3660482	99	50	36,10	cyclictest	256	50	irq/23-42890000.ethernet	07:20:35	0
3660483	99	49	41,5	cyclictest	3792581	-21	kworker/u4:1+rpciod	11:05:29	1
3660482	99	49	42,5	cyclictest	3660480	-21	cyclictest	11:08:57	0
3660482	99	49	41,6	cyclictest	3451205	-21	kworker/u4:6+events_unbound	08:03:16	0
3660482	99	49	39,7	cyclictest	3773294	-21	/usr/sbin/munin	10:40:22	0
3660482	99	49	30,16	cyclictest	0	-21	swapper/0	11:45:24	0
3660483	99	48	41,5	cyclictest	3662222	-21	fschecks_time	07:15:22	1
3660483	99	48	41,5	cyclictest	3662222	-21	fschecks_time	07:15:21	1
3660483	99	48	40,6	cyclictest	3684172	-21	cut	08:40:19	1
3660483	99	48	39,5	cyclictest	3689913	-21	kworker/u4:12-rpciod	09:13:32	1
3660483	99	48	39,5	cyclictest	3689913	-21	kworker/u4:12-rpciod	09:13:31	1
3660483	99	48	3,34	cyclictest	3844703	-21	ssh	12:00:23	1
3660482	99	48	41,5	cyclictest	3737257	-21	gltestperf	10:00:21	0
3660482	99	48	40,6	cyclictest	3692458	-21	/usr/sbin/munin	09:10:38	0
3660482	99	48	40,6	cyclictest	3692458	-21	/usr/sbin/munin	09:10:38	0
3660482	99	48	40,5	cyclictest	3705435	-21	cpu	09:25:18	0
3660482	99	48	39,7	cyclictest	3696630	-21	/usr/sbin/munin	09:15:21	0
3660482	99	48	34,9	cyclictest	3741630	-21	fschecks_count	10:05:20	0
3660482	99	48	34,12	cyclictest	3837267	-21	kworker/u4:5-rpciod	11:55:19	0
3660483	99	47	40,5	cyclictest	3848880	-21	fschecks_time	12:05:20	1
3660483	99	47	40,5	cyclictest	3818205	-21	uname	11:30:33	1
3660483	99	47	40,5	cyclictest	3801638	-21	kworker/u4:9+events_unbound	11:55:35	1
3660483	99	47	39,6	cyclictest	3741973	-21	ntpq	10:05:27	1
3660483	99	47	36,8	cyclictest	53	-21	kswapd0	10:15:33	1
3660483	99	47	33,10	cyclictest	0	-21	swapper/1	12:35:28	1
3660482	99	47	40,5	cyclictest	3844440	-21	fschecks_time	12:00:19	0
3660482	99	47	39,5	cyclictest	3861883	-21	aten_r7power_cu	12:20:18	0
3660482	99	47	39,5	cyclictest	3861883	-21	aten_r7power_cu	12:20:17	0
3660482	99	47	37,8	cyclictest	3721118	-21	kworker/u4:10-rpciod	09:50:20	0
3660482	99	47	37,8	cyclictest	3672503	-21	fschecks_count	07:55:21	0
3660482	99	47	30,15	cyclictest	3721117	-21	kworker/u4:9-rpciod	09:45:31	0
3660482	99	47	29,15	cyclictest	0	-21	swapper/0	08:09:59	0
3660483	99	46	39,5	cyclictest	3809156	-21	ld	11:20:29	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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