OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of system in rack #e, slot #6

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.
Unexpectedly long latencies may be caused by SMIs
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Compare latency of primary with shadow system

Characteristics of the 100 highest latencies:

System rackeslot6.osadl.org (updated Sat Jul 27, 2024 00:44:59)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
4157597	99	90	80,7	cyclictest	4167186	-21	latency_hist	19:40:00	0
4157597	99	88	81,5	cyclictest	54330	-21	kworker/u8:0+flush-179:0	00:25:01	0
4157600	99	87	78,6	cyclictest	54295	-21	latency_hist	23:50:01	1
4157600	99	86	76,8	cyclictest	30684	-21	/usr/sbin/munin	22:35:32	1
4157597	99	85	74,6	cyclictest	9573	-21	kworker/u8:3+events_unbound	22:00:02	0
4157600	99	84	77,4	cyclictest	4165822	-21	kworker/u8:3+flush-179:0	19:40:27	1
4157597	99	84	80,3	cyclictest	44727	-21	kworker/u8:1+flush-179:0	23:25:24	0
4157597	99	80	76,3	cyclictest	67966	-21	kworker/u8:1+flush-179:0	00:30:24	0
4157597	99	80	76,3	cyclictest	41555	-21	kworker/u8:0+flush-179:0	23:10:25	0
4157597	99	80	76,3	cyclictest	41555	-21	kworker/u8:0+flush-179:0	23:10:25	0
4157597	99	79	74,4	cyclictest	4489	-21	kworker/u8:2+flush-179:0	22:20:24	0
4157597	99	78	74,3	cyclictest	44727	-21	kworker/u8:1+flush-179:0	23:35:25	0
4157597	99	77	65,9	cyclictest	55878	-21	latency_hist	23:55:01	0
4157600	99	76	71,3	cyclictest	4176952	-21	kworker/u8:0+events_unbound	20:20:24	1
4157600	99	76	70,4	cyclictest	45004	-21	kworker/u8:2+flush-179:0	23:25:00	1
4157597	99	76	65,3	cyclictest	41555	-21	kworker/u8:0+events_unbound	23:15:24	0
4157597	99	75	69,4	cyclictest	4489	-21	kworker/u8:2+events_unbound	22:30:12	0
4157600	99	74	61,6	cyclictest	9573	-21	kworker/u8:3+events_unbound	22:10:00	1
4157597	99	74	69,4	cyclictest	48937	-21	kworker/u8:2+flush-179:0	23:40:21	0
4157597	99	73	68,4	cyclictest	6338	-21	kworker/u8:0+events_unbound	21:20:23	0
4157597	99	73	68,4	cyclictest	4154071	-21	kworker/u8:0+flush-179:0	19:50:25	0
4157600	99	72	65,5	cyclictest	4165822	-21	kworker/u8:3+flush-179:0	19:35:29	1
4157597	99	72	68,3	cyclictest	9573	-21	kworker/u8:3+flush-179:0	22:05:31	0
4157597	99	72	68,3	cyclictest	4489	-21	kworker/u8:2+flush-179:0	22:25:27	0
4157597	99	72	67,4	cyclictest	4144461	-21	kworker/u8:2+flush-179:0	19:10:21	0
4157600	99	71	59,7	cyclictest	54330	-21	kworker/u8:0+flush-179:0	23:50:18	1
4157597	99	71	67,3	cyclictest	4173555	-21	kworker/u8:2+events_unbound	20:05:25	0
4157597	99	71	66,4	cyclictest	4489	-21	kworker/u8:2+events_unbound	22:15:24	0
4157597	99	71	66,4	cyclictest	4489	-21	kworker/u8:2+events_unbound	22:15:23	0
4157600	99	70	62,6	cyclictest	27278	-21	latency_hist	22:25:00	1
4157597	99	70	66,3	cyclictest	4187061	-21	kworker/u8:2+events_unbound	20:50:25	0
4157597	99	70	66,3	cyclictest	30482	-21	kworker/u8:1+flush-179:0	22:40:12	0
4157597	99	70	66,3	cyclictest	30482	-21	kworker/u8:1+flush-179:0	22:40:12	0
4157600	99	69	59,8	cyclictest	9776	-21	/usr/sbin/munin	21:30:23	1
4157597	99	69	64,4	cyclictest	44727	-21	kworker/u8:1+flush-179:0	23:55:28	0
4157597	99	69	64,4	cyclictest	44727	-21	kworker/u8:1+flush-179:0	23:55:27	0
4157597	99	69	61,6	cyclictest	4186512	-21	latency_hist	20:40:01	0
4157600	99	68	62,4	cyclictest	4489	-21	kworker/u8:2+events_unbound	22:10:24	1
4157597	99	68	0,66	cyclictest	716	-21	Xorg	21:04:58	0
4157600	99	67	56,3	cyclictest	35198	-21	kworker/u8:0+flush-179:0	22:50:25	1
4157597	99	67	62,4	cyclictest	36783	-21	kworker/u8:3+flush-179:0	23:05:22	0
4157597	99	67	59,6	cyclictest	35220	-21	latency_hist	22:50:00	0
4157600	99	66	61,4	cyclictest	4154071	-21	kworker/u8:0+flush-179:0	19:45:12	1
4157600	99	66	60,4	cyclictest	4173555	-21	kworker/u8:2+events_unbound	20:00:01	1
4157600	99	66	60,4	cyclictest	4173555	-21	kworker/u8:2+events_unbound	20:00:00	1
4157597	99	66	62,3	cyclictest	7994	-21	kworker/u8:1+flush-179:0	21:30:48	0
4157597	99	66	62,3	cyclictest	36783	-21	kworker/u8:3+events_unbound	22:55:30	0
4157600	99	65	58,4	cyclictest	36783	-21	kworker/u8:3+flush-179:0	23:05:21	1
4157597	99	65	63,1	cyclictest	0	-21	swapper/0	21:49:58	0
4157597	99	65	61,3	cyclictest	9573	-21	kworker/u8:3+events_unbound	21:35:24	0
4157597	99	65	53,9	cyclictest	4161072	-21	/usr/sbin/munin	19:20:25	0
4157597	99	64	60,3	cyclictest	4191514	-21	kworker/u8:0+events_unbound	21:10:19	0
4157597	99	64	60,3	cyclictest	4163459	-21	kworker/u8:1+flush-179:0	19:30:15	0
4157597	99	64	58,5	cyclictest	4489	-21	kworker/u8:2+events_unbound	21:55:17	0
4157597	99	64	58,5	cyclictest	4165822	-21	kworker/u8:3+events_unbound	20:00:25	0
4157597	99	63	59,3	cyclictest	4187061	-21	kworker/u8:2+events_unbound	20:45:22	0
4157597	99	63	58,4	cyclictest	35198	-21	kworker/u8:0+events_unbound	23:00:26	0
4157600	99	62	55,5	cyclictest	4489	-21	kworker/u8:2+flush-179:0	22:45:24	1
4157600	99	62	54,5	cyclictest	4489	-21	kworker/u8:2+events_unbound	21:25:35	1
4157597	99	62	58,3	cyclictest	4154071	-21	kworker/u8:0+events_unbound	19:25:22	0
4157597	99	62	57,4	cyclictest	4187061	-21	kworker/u8:2+flush-179:0	20:40:25	0
4157597	99	61	57,3	cyclictest	7994	-21	kworker/u8:1+events_unbound	21:25:45	0
4157597	99	61	56,3	cyclictest	44727	-21	kworker/u8:1+events_unbound	00:00:27	0
4157600	99	60	56,3	cyclictest	54330	-21	kworker/u8:0+flush-179:0	00:05:25	1
4157600	99	60	56,3	cyclictest	54330	-21	kworker/u8:0+flush-179:0	00:05:24	1
4157600	99	60	54,4	cyclictest	753	-21	kworker/u8:1+flush-179:0	21:15:16	1
4157600	99	60	52,6	cyclictest	35198	-21	kworker/u8:0+flush-179:0	23:00:00	1
4157597	99	60	56,3	cyclictest	4176952	-21	kworker/u8:0+flush-179:0	20:19:56	0
4157597	99	60	56,3	cyclictest	4176952	-21	kworker/u8:0+events_unbound	20:20:22	0
4157597	99	60	55,4	cyclictest	753	-21	kworker/u8:1+events_unbound	21:15:28	0
4157600	99	59	53,4	cyclictest	30482	-21	kworker/u8:1+flush-179:0	22:40:16	1
4157600	99	59	53,4	cyclictest	30482	-21	kworker/u8:1+flush-179:0	22:40:16	1
4157597	99	59	55,3	cyclictest	35198	-21	kworker/u8:0+flush-179:0	22:50:28	0
4157600	99	58	54,3	cyclictest	4154071	-21	kworker/u8:0+flush-179:0	19:25:26	1
4157597	99	58	54,3	cyclictest	44727	-21	kworker/u8:1+events_unbound	00:10:15	0
4157600	99	57	50,6	cyclictest	44727	-21	kworker/u8:1+flush-179:0	23:35:01	1
4157600	99	57	49,6	cyclictest	54330	-21	kworker/u8:0+flush-179:0	00:00:01	1
4157600	99	57	49,6	cyclictest	54330	-21	kworker/u8:0+flush-179:0	00:00:00	1
4157597	99	57	53,3	cyclictest	4191514	-21	kworker/u8:0+events_unbound	20:58:32	0
4157597	99	56	46,4	cyclictest	4154071	-21	kworker/u8:0+events_unbound	19:45:24	0
4157600	99	55	49,4	cyclictest	4157546	-21	kworker/u8:3+flush-179:0	19:15:21	1
4157600	99	55	43,10	cyclictest	4185168	-21	apt-get	20:35:09	1
4157597	99	55	51,3	cyclictest	70219	-21	kworker/u8:2+events_unbound	00:35:28	0
4157597	99	55	51,3	cyclictest	70219	-21	kworker/u8:2+events_unbound	00:35:28	0
4157597	99	55	51,3	cyclictest	54330	-21	kworker/u8:0+events_unbound	00:15:26	0
4157597	99	55	50,4	cyclictest	4165822	-21	kworker/u8:3+flush-179:0	19:40:15	0
4157600	99	54	49,3	cyclictest	4176952	-21	kworker/u8:0+flush-179:0	20:45:00	1
4157600	99	54	45,6	cyclictest	4489	-21	kworker/u8:2+flush-179:0	22:15:19	1
4157600	99	54	45,6	cyclictest	4489	-21	kworker/u8:2+flush-179:0	22:15:18	1
4157600	99	54	45,6	cyclictest	2664	-21	apt-get	21:10:01	1
4157597	99	54	49,4	cyclictest	4176952	-21	kworker/u8:0+events_unbound	20:10:30	0
4157600	99	53	47,4	cyclictest	54330	-21	kworker/u8:0+flush-179:0	00:35:01	1
4157600	99	53	47,4	cyclictest	44727	-21	kworker/u8:1+events_unbound	23:30:01	1
4157600	99	53	42,9	cyclictest	19522	-21	cat	22:00:01	1
4157597	99	53	49,3	cyclictest	48937	-21	kworker/u8:2+events_unbound	23:45:22	0
4157600	99	52	46,4	cyclictest	4154071	-21	kworker/u8:0+flush-179:0	19:50:20	1
4157600	99	52	42,7	cyclictest	4176952	-21	kworker/u8:0+flush-179:0	20:30:23	1
4157597	99	52	48,3	cyclictest	44727	-21	kworker/u8:1+flush-179:0	23:34:55	0
4157597	99	52	47,4	cyclictest	54330	-21	kworker/u8:0+events_unbound	00:28:33	0
4157597	99	52	42,8	cyclictest	4181999	-21	apt-get	20:25:10	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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This page was last modified on 2020-10-04 - 12:21