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 Thu Mar 26, 2026 00:44:10)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
4113826	99	120	99,8	cyclictest	94173	-21	kworker/u4:2+events_unbound	00:13:25	1
4113826	99	106	96,7	cyclictest	4173742	-21	kworker/u4:0+events_unbound	21:56:19	1
4113825	99	105	97,6	cyclictest	4191626	-21	kworker/u4:11+events_unbound	22:41:30	0
4113826	99	103	95,6	cyclictest	120408	-21	kworker/u4:6+events_unbound	00:26:22	1
4113825	99	101	94,5	cyclictest	63430	-21	kworker/u4:0+events_unbound	23:46:54	0
4113826	99	100	88,6	cyclictest	32750	-21	kworker/u4:12+events_unbound	22:46:29	1
4113825	99	100	85,5	cyclictest	71748	-21	kworker/u4:7+events_unbound	23:26:38	0
4113826	99	97	89,6	cyclictest	4191628	-21	kworker/u4:13+events_unbound	22:11:22	1
4113825	99	95	87,6	cyclictest	4142045	-21	kworker/u4:9+events_unbound	21:21:11	0
4113825	99	94	85,7	cyclictest	129344	-21	kworker/u4:5+events_unbound	00:38:44	0
4113825	99	93	85,6	cyclictest	45538	-21	kworker/u4:2+events_unbound	23:06:34	0
4113825	99	93	84,7	cyclictest	4142044	-21	kworker/u4:6+events_unbound	21:26:13	0
4113826	99	91	84,5	cyclictest	32098	-21	kworker/u4:8+events_unbound	23:01:33	1
4113826	99	90	69,7	cyclictest	4173743	-21	kworker/u4:4+events_unbound	22:01:21	1
4113825	99	88	80,6	cyclictest	32098	-21	kworker/u4:8+events_unbound	23:31:39	0
4113825	99	88	80,6	cyclictest	32098	-21	kworker/u4:8+events_unbound	23:31:38	0
4113825	99	85	70,6	cyclictest	63430	-21	kworker/u4:0+events_unbound	00:03:10	0
4113825	99	84	76,6	cyclictest	10396	-21	kworker/u4:0+events_unbound	22:21:25	0
4113825	99	83	77,4	cyclictest	63430	-21	kworker/u4:0+events_unbound	00:18:28	0
4113825	99	83	76,5	cyclictest	4131747	-21	kworker/u4:3+events_unbound	20:36:03	0
4113826	99	82	75,5	cyclictest	4164808	-21	kworker/u4:2+events_unbound	21:36:17	1
4113826	99	82	74,6	cyclictest	50030	-21	kworker/u4:11+events_unbound	23:11:35	1
4113825	99	82	69,10	cyclictest	4173742	-21	kworker/u4:0+events_unbound	21:46:19	0
4113825	99	81	73,6	cyclictest	14855	-21	kworker/u4:7+events_unbound	22:26:26	0
4113826	99	80	72,6	cyclictest	4191628	-21	kworker/u4:13+events_unbound	22:31:27	1
4113826	99	79	69,7	cyclictest	32098	-21	kworker/u4:8+events_unbound	23:35:13	1
4113826	99	79	69,7	cyclictest	32098	-21	kworker/u4:8+events_unbound	23:35:13	1
4113826	99	78	71,5	cyclictest	94176	-21	kworker/u4:8+events_unbound	23:58:07	1
4113825	99	77	70,5	cyclictest	63430	-21	kworker/u4:0+events_unbound	00:11:42	0
4113825	99	75	64,5	cyclictest	4125358	-21	kworker/u4:7+events_unbound	20:15:59	0
4113825	99	75	64,5	cyclictest	4125358	-21	kworker/u4:7+events_unbound	20:15:58	0
4113826	99	74	66,6	cyclictest	4117627	-21	kworker/u4:9+events_unbound	20:31:02	1
4113826	99	74	66,6	cyclictest	4117627	-21	kworker/u4:9+events_unbound	20:31:01	1
4113826	99	74	66,6	cyclictest	112091	-21	kworker/u4:4+events_unbound	00:15:17	1
4113826	99	72	64,6	cyclictest	89704	-21	kworker/u4:3+events_unbound	23:53:04	1
4113826	99	72	63,7	cyclictest	53	-21	kswapd0	23:20:02	1
4113826	99	72	63,6	cyclictest	4147505	-21	kworker/u4:0+events_unbound	21:31:14	1
4113826	99	71	64,5	cyclictest	4136854	-21	kworker/u4:12+events_unbound	20:56:09	1
4113826	99	71	64,5	cyclictest	4101427	-21	kworker/u4:5+events_unbound	19:20:01	1
4113825	99	71	64,5	cyclictest	3874495	-21	kworker/u4:11+events_unbound	19:10:52	0
4113826	99	70	62,6	cyclictest	4136854	-21	kworker/u4:12+events_unbound	20:46:05	1
4113825	99	69	61,6	cyclictest	4125358	-21	kworker/u4:7+events_unbound	20:21:02	0
4113826	99	68	61,5	cyclictest	53	-21	kswapd0	21:45:10	1
4113826	99	68	60,6	cyclictest	4133043	-21	kworker/u4:13+events_unbound	20:41:04	1
4113825	99	68	60,6	cyclictest	4116317	-21	kworker/u4:1+events_unbound	19:40:55	0
4113825	99	66	58,6	cyclictest	4169289	-21	kworker/u4:8+events_unbound	21:41:17	0
4113826	99	65	41,8	cyclictest	4142045	-21	kworker/u4:9+events_unbound	21:20:02	1
4113825	99	65	58,5	cyclictest	3874495	-21	kworker/u4:11+events_unbound	19:35:55	0
4113825	99	65	56,6	cyclictest	4131733	-21	kworker/u4:1+events_unbound	20:26:03	0
4113825	99	65	21,28	cyclictest	4113824	-21	modprobe	19:10:01	0
4113825	99	64	56,6	cyclictest	4125353	-21	kworker/u4:5+events_unbound	20:00:58	0
4113826	99	63	56,5	cyclictest	63430	-21	kworker/u4:0+events_unbound	23:41:40	1
4113826	99	63	47,4	cyclictest	4140774	-21	kworker/u4:5+events_unbound	21:04:59	1
4113825	99	63	55,6	cyclictest	4116318	-21	kworker/u4:6+events_unbound	19:30:55	0
4113826	99	62	55,5	cyclictest	4129191	-21	kworker/u4:4+events_unbound	21:06:11	1
4113826	99	62	53,7	cyclictest	4117627	-21	kworker/u4:9+events_unbound	19:45:57	1
4113825	99	62	54,6	cyclictest	4111319	-21	kworker/u4:2+events_unbound	19:25:52	0
4113825	99	62	45,6	cyclictest	4173744	-21	kworker/u4:5+events_unbound	21:55:17	0
4113825	99	61	48,5	cyclictest	63430	-21	kworker/u4:0+events_unbound	23:50:03	0
4113825	99	60	50,7	cyclictest	27110	-21	sed	22:35:40	0
4113825	99	60	44,6	cyclictest	4191628	-21	kworker/u4:13+events_unbound	22:12:43	0
4113826	99	59	48,8	cyclictest	53	-21	kswapd0	22:05:13	1
4113826	99	58	51,5	cyclictest	4111319	-21	kworker/u4:2+events_unbound	19:10:00	1
4113826	99	58	49,7	cyclictest	3846940	-21	kworker/u4:10+events_unbound	19:35:02	1
4113826	99	57	34,5	cyclictest	63430	-21	kworker/u4:0+events_unbound	00:02:59	1
4113825	99	57	50,5	cyclictest	4120167	-21	kworker/u4:14+events_unbound	19:55:57	0
4113825	99	57	49,6	cyclictest	3874495	-21	kworker/u4:11+events_unbound	19:15:50	0
4113825	99	57	19,16	cyclictest	256	50	irq/23-42890000.ethernet	23:15:35	0
4113826	99	56	49,5	cyclictest	4101427	-21	kworker/u4:5+events_unbound	19:25:01	1
4113825	99	56	33,6	cyclictest	63434	-21	kworker/u4:4+events_unbound	23:20:42	0
4113825	99	55	44,4	cyclictest	4191626	-21	kworker/u4:11+events_unbound	22:09:01	0
4113825	99	55	41,8	cyclictest	4178213	-21	kworker/u4:7+events_unbound	21:51:00	0
4113826	99	54	46,6	cyclictest	45541	-21	kworker/u4:5+events_unbound	23:05:20	1
4113826	99	54	39,5	cyclictest	4131747	-21	kworker/u4:3+events_unbound	20:26:01	1
4113825	99	54	47,5	cyclictest	53	-21	kswapd0	00:25:01	0
4113825	99	54	46,6	cyclictest	94173	-21	kworker/u4:2+events_unbound	23:58:20	0
4113825	99	54	45,6	cyclictest	4164807	-21	kworker/u4:1+events_unbound	22:16:27	0
4113825	99	54	37,6	cyclictest	4125358	-21	kworker/u4:7+events_unbound	20:55:01	0
4113825	99	54	37,15	cyclictest	4171151	-21	sh	21:40:01	0
4113826	99	53	45,6	cyclictest	4110112	-21	kworker/u4:0+events_unbound	19:50:57	1
4113826	99	53	42,8	cyclictest	4129067	-21	sed	20:05:38	1
4113826	99	53	37,6	cyclictest	89704	-21	kworker/u4:3+events_unbound	23:48:42	1
4113825	99	53	46,5	cyclictest	85070	-21	systemd	23:41:39	0
4113826	99	52	45,5	cyclictest	9279	-21	switchtime	22:15:39	1
4113826	99	52	45,5	cyclictest	4116319	-21	kworker/u4:8+events_unbound	21:10:15	1
4113826	99	52	45,5	cyclictest	14855	-21	kworker/u4:7+events_unbound	22:22:59	1
4113826	99	52	44,6	cyclictest	4129191	-21	kworker/u4:4+events_unbound	20:10:58	1
4113825	99	52	45,5	cyclictest	4129191	-21	kworker/u4:4+events_unbound	20:10:01	0
4113825	99	52	44,6	cyclictest	4173743	-21	kworker/u4:4+events_unbound	22:01:26	0
4113825	99	52	41,4	cyclictest	32750	-21	kworker/u4:12+events_unbound	22:45:42	0
4113825	99	52	34,16	cyclictest	19326	-21	kworker/u4:2+events_unbound	22:32:31	0
4113826	99	51	43,6	cyclictest	115910	-21	kworker/u4:9+events_unbound	00:20:21	1
4113826	99	51	42,6	cyclictest	0	-21	swapper/1	21:40:33	1
4113826	99	51	33,4	cyclictest	63432	-21	kworker/u4:2+events_unbound	23:23:59	1
4113825	99	51	44,5	cyclictest	4131747	-21	kworker/u4:3+events_unbound	20:51:07	0
4113826	99	50	43,5	cyclictest	4191628	-21	kworker/u4:13+events_unbound	22:28:01	1
4113826	99	50	42,6	cyclictest	32749	-21	kworker/u4:10+events_unbound	22:44:00	1
4113826	99	50	40,7	cyclictest	63432	-21	kworker/u4:2+events_unbound	23:30:14	1
4113826	99	50	40,7	cyclictest	63432	-21	kworker/u4:2+events_unbound	23:30:13	1
4113825	99	50	42,6	cyclictest	37245	-21	kworker/u4:7-rpciod	22:50:28	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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