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 Tue Jun 23, 2026 00:44:11)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
17055	99	120	101,8	cyclictest	195223	-21	kworker/u4:19+events_unbound	00:22:54	1
17055	99	116	107,7	cyclictest	164710	-21	kworker/u4:8+events_unbound	23:22:46	1
17053	99	115	95,7	cyclictest	125283	-21	kworker/u4:0+events_unbound	22:52:41	0
17053	99	111	104,5	cyclictest	72369	-21	kworker/u4:8+events_unbound	21:37:30	0
17055	99	104	92,6	cyclictest	221299	-21	kworker/u4:1+events_unbound	00:27:56	1
17053	99	103	95,6	cyclictest	169155	-21	kworker/u4:14+events_unbound	23:37:49	0
17053	99	102	83,8	cyclictest	76867	-21	kworker/u4:2+events_unbound	22:37:40	0
17055	99	101	92,7	cyclictest	190781	-21	kworker/u4:5+events_unbound	23:52:50	1
17053	99	98	89,7	cyclictest	94696	-21	kworker/u4:10+events_unbound	22:02:35	0
17055	99	96	83,5	cyclictest	212357	-21	kworker/u4:11+events_unbound	00:17:53	1
17053	99	95	86,7	cyclictest	63461	-21	kworker/u4:9+events_unbound	21:27:28	0
17055	99	94	87,5	cyclictest	221299	-21	kworker/u4:1+events_unbound	00:32:54	1
17053	99	94	80,6	cyclictest	160216	-21	kworker/u4:12+events_unbound	23:17:45	0
17055	99	92	84,6	cyclictest	28492	-21	kworker/u4:6+events_unbound	20:30:02	1
17053	99	92	84,6	cyclictest	94697	-21	kworker/u4:11+events_unbound	22:17:36	0
17053	99	91	81,8	cyclictest	37525	-21	kworker/u4:0+events_unbound	21:17:00	0
17053	99	91	81,8	cyclictest	37525	-21	kworker/u4:0+events_unbound	21:16:59	0
17055	99	90	83,5	cyclictest	37526	-21	kworker/u4:3+events_unbound	20:47:23	1
17055	99	90	81,7	cyclictest	129773	-21	kworker/u4:13+events_unbound	22:42:41	1
17055	99	88	79,7	cyclictest	76867	-21	kworker/u4:2+events_unbound	21:42:32	1
17053	99	87	80,5	cyclictest	142463	-21	kworker/u4:19+events_unbound	22:57:41	0
17053	99	86	78,5	cyclictest	204141	-21	kworker/u4:0+events_unbound	00:07:53	0
17053	99	86	78,5	cyclictest	204141	-21	kworker/u4:0+events_unbound	00:07:52	0
17055	99	84	76,5	cyclictest	8505	-21	kworker/u4:19+events_unbound	19:15:01	1
17053	99	84	76,6	cyclictest	76865	-21	kworker/u4:0+events_unbound	22:07:35	0
17053	99	83	75,6	cyclictest	20847	-21	kworker/u4:11+events_unbound	20:07:20	0
17053	99	81	74,5	cyclictest	4192033	-21	kworker/u4:8+events_unbound	19:17:13	0
17053	99	81	73,6	cyclictest	41451	-21	kworker/u4:9+events_unbound	21:12:28	0
17055	99	80	65,6	cyclictest	37525	-21	kworker/u4:0+events_unbound	20:52:22	1
17053	99	80	71,7	cyclictest	169156	-21	kworker/u4:15+events_unbound	23:27:46	0
17055	99	79	71,5	cyclictest	94695	-21	kworker/u4:9+events_unbound	22:32:38	1
17053	99	79	72,5	cyclictest	3970882	-21	kworker/u4:7+events_unbound	19:25:01	0
17053	99	78	12,59	cyclictest	17052	-21	modprobe	19:10:01	0
17053	99	77	69,6	cyclictest	67926	-21	kworker/u4:3+events_unbound	21:32:30	0
17053	99	77	69,6	cyclictest	67926	-21	kworker/u4:3+events_unbound	21:32:29	0
17053	99	75	68,5	cyclictest	94695	-21	kworker/u4:9+events_unbound	22:12:34	0
17053	99	75	67,6	cyclictest	33683	-21	kworker/u4:14+events_unbound	20:57:24	0
17055	99	74	61,5	cyclictest	20847	-21	kworker/u4:11+events_unbound	20:22:22	1
17055	99	72	47,6	cyclictest	173593	-21	kworker/u4:0+events_unbound	23:45:00	1
17053	99	72	67,3	cyclictest	25953	-21	kworker/u4:4+events_unbound	20:42:23	0
17053	99	70	63,5	cyclictest	72371	-21	kworker/u4:10+events_unbound	21:47:33	0
17053	99	70	62,6	cyclictest	190779	-21	kworker/u4:4+events_unbound	23:57:50	0
17055	99	69	61,6	cyclictest	20847	-21	kworker/u4:11+events_unbound	19:47:19	1
17055	99	69	60,6	cyclictest	27221	-21	kworker/u4:5+events_unbound	20:12:21	1
17055	99	69	60,6	cyclictest	27221	-21	kworker/u4:5+events_unbound	20:12:20	1
17053	99	69	60,7	cyclictest	116376	-21	kworker/u4:5+events_unbound	22:47:42	0
17053	99	69	59,5	cyclictest	76867	-21	kworker/u4:2+events_unbound	21:55:02	0
17053	99	69	54,6	cyclictest	155782	-21	kworker/u4:8+events_unbound	23:15:00	0
17055	99	68	59,7	cyclictest	7209	-21	kworker/u4:18+events_unbound	20:37:22	1
17055	99	66	50,6	cyclictest	67925	-21	kworker/u4:2+events_unbound	21:36:01	1
17055	99	66	47,6	cyclictest	54518	-21	kworker/u4:5+events_unbound	21:21:59	1
17053	99	65	57,6	cyclictest	212357	-21	kworker/u4:11+events_unbound	00:20:03	0
17055	99	63	40,6	cyclictest	129770	-21	kworker/u4:6+events_unbound	23:00:15	1
17055	99	62	46,8	cyclictest	120840	-21	kworker/u4:15+events_unbound	22:55:59	1
17055	99	62	40,8	cyclictest	80694	-21	kworker/u4:4+events_unbound	22:20:20	1
17053	99	62	50,5	cyclictest	173593	-21	kworker/u4:0+events_unbound	23:45:10	0
17055	99	61	56,4	cyclictest	129771	-21	kworker/u4:8+events_unbound	23:05:03	1
17053	99	61	54,5	cyclictest	46555	-21	kworker/u4:4+events_unbound	21:02:23	0
17053	99	61	50,6	cyclictest	85796	-21	kworker/u4:12+events_unbound	22:26:59	0
17053	99	61	44,15	cyclictest	221299	-21	kworker/u4:1+events_unbound	00:35:04	0
17053	99	61	44,15	cyclictest	221299	-21	kworker/u4:1+events_unbound	00:35:03	0
17055	99	60	53,5	cyclictest	22115	-21	kworker/u4:12+events_unbound	20:32:23	1
17053	99	60	53,5	cyclictest	22115	-21	kworker/u4:12+events_unbound	19:27:15	0
17053	99	60	52,6	cyclictest	24654	-21	kworker/u4:1+events_unbound	20:17:00	0
17053	99	60	48,9	cyclictest	256	50	irq/23-42890000.ethernet	00:10:13	0
17055	99	59	50,7	cyclictest	31060	-21	kworker/u4:8+events_unbound	20:05:03	1
17055	99	59	37,17	cyclictest	0	-21	swapper/1	23:30:30	1
17055	99	58	48,7	cyclictest	0	-21	swapper/1	22:00:27	1
17055	99	57	50,5	cyclictest	24655	-21	kworker/u4:2+events_unbound	19:45:01	1
17055	99	57	49,6	cyclictest	24654	-21	kworker/u4:1+events_unbound	20:17:21	1
17053	99	57	47,7	cyclictest	317	-21	systemd-journal	23:02:41	0
17053	99	57	47,7	cyclictest	199687	-21	kworker/u4:3-rpciod	00:15:17	0
17053	99	56	36,17	cyclictest	27453	-21	aten2__	19:50:16	0
17055	99	55	48,5	cyclictest	45263	-21	kworker/u4:2+events_unbound	21:15:03	1
17055	99	55	48,5	cyclictest	45263	-21	kworker/u4:2+events_unbound	21:15:02	1
17055	99	55	48,5	cyclictest	116376	-21	kworker/u4:5+events_unbound	22:48:58	1
17053	99	55	48,5	cyclictest	24655	-21	kworker/u4:2+events_unbound	19:37:17	0
17053	99	55	47,5	cyclictest	15	1	ktimers/0	23:06:52	0
17055	99	54	46,5	cyclictest	0	-21	swapper/1	23:25:14	1
17055	99	54	41,5	cyclictest	22115	-21	kworker/u4:12+events_unbound	19:35:01	1
17053	99	54	46,5	cyclictest	88468	-21	ntp_kernel_err	21:55:23	0
17053	99	54	39,5	cyclictest	94695	-21	kworker/u4:9+events_unbound	22:22:58	0
17053	99	54	35,11	cyclictest	42745	-21	kworker/u4:2	20:50:00	0
17055	99	53	45,6	cyclictest	85796	-21	kworker/u4:12+events_unbound	22:10:59	1
17055	99	53	43,7	cyclictest	41471	-21	modprobe	20:45:00	1
17053	99	53	47,4	cyclictest	0	-21	swapper/0	23:40:30	0
17053	99	53	45,6	cyclictest	195223	-21	kworker/u4:19+events_unbound	00:02:52	0
17053	99	53	34,16	cyclictest	221300	-21	kworker/u4:5-rpciod	00:30:17	0
17055	99	52	45,5	cyclictest	212358	-21	kworker/u4:12+events_unbound	00:35:22	1
17055	99	52	45,5	cyclictest	212358	-21	kworker/u4:12+events_unbound	00:35:22	1
17055	99	52	45,5	cyclictest	116376	-21	kworker/u4:5+events_unbound	22:36:01	1
17055	99	52	44,5	cyclictest	155777	-21	kworker/u4:0+events_unbound	23:17:02	1
17055	99	52	42,8	cyclictest	202893	-21	threads	00:05:39	1
17055	99	52	42,8	cyclictest	202893	-21	threads	00:05:38	1
17055	99	52	42,7	cyclictest	47648	-21	switchtime	21:05:41	1
17055	99	52	41,6	cyclictest	0	-21	swapper/1	21:30:38	1
17055	99	52	41,6	cyclictest	0	-21	swapper/1	21:30:38	1
17053	99	52	44,6	cyclictest	20847	-21	kworker/u4:11+events_unbound	21:07:27	0
17053	99	52	43,6	cyclictest	53	-21	kswapd0	00:25:15	0
17053	99	52	34,16	cyclictest	53	-21	kswapd0	20:30:17	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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