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 Wed Apr 24, 2024 12:44:52)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
3694046	99	138	125,8	cyclictest	3745323	-21	gpgv	10:00:00	1
3694044	99	128	119,7	cyclictest	3697391	-21	latency_hist	07:25:00	0
3694044	99	126	112,11	cyclictest	3793969	-21	apt-get	12:33:35	0
3694046	99	115	105,7	cyclictest	3753410	-21	latency_hist	10:25:01	1
3694044	99	114	103,8	cyclictest	3710994	-21	latency_hist	08:15:00	0
3694046	99	113	104,6	cyclictest	3717345	-21	kworker/u8:0+events_unbound	08:55:01	1
3694044	99	112	107,4	cyclictest	3692140	-21	kworker/u8:2+flush-179:0	07:15:01	0
3694046	99	104	98,4	cyclictest	3771304	-21	gpgv	11:25:01	1
3694044	99	104	95,7	cyclictest	3754994	-21	latency_hist	10:30:01	0
3694044	99	103	96,4	cyclictest	3706473	-21	kworker/u8:2+events_unbound	08:30:01	0
3694046	99	99	88,8	cyclictest	3781209	-21	/usr/sbin/munin	11:55:26	1
3694044	99	98	90,5	cyclictest	3740194	-21	kworker/u8:1+flush-179:0	09:55:03	0
3694046	99	97	85,9	cyclictest	3737208	-21	/usr/sbin/munin	09:35:26	1
3694044	99	94	87,5	cyclictest	3779377	-21	kworker/u8:3+flush-179:0	12:05:00	0
3694044	99	94	85,7	cyclictest	3723726	-21	apt-get	08:55:00	0
3694044	99	93	83,6	cyclictest	3696795	-21	kworker/u8:0+flush-179:0	07:25:01	0
3694044	99	93	68,10	cyclictest	3747299	-21	apt-get	10:05:13	0
3694051	99	89	81,6	cyclictest	3732222	-21	turbostat	09:20:00	3
3694046	99	88	80,6	cyclictest	3789070	-21	gpgv	12:20:01	1
3694046	99	88	77,9	cyclictest	3745645	-21	cat	10:00:01	1
3694046	99	87	77,8	cyclictest	3758494	-21	kworker/u8:2+flush-179:0	11:10:26	1
3694046	99	87	75,9	cyclictest	529	-21	rs:main		1
3694044	99	87	79,6	cyclictest	3758494	-21	kworker/u8:2+flush-179:0	11:20:21	0
3694046	99	83	74,6	cyclictest	3753445	-21	kworker/u8:1+flush-179:0	11:00:20	1
3694044	99	83	74,6	cyclictest	3784419	-21	apt-get	12:05:12	0
3694044	99	82	76,4	cyclictest	3758494	-21	kworker/u8:2+flush-179:0	10:55:30	0
3694046	99	81	76,3	cyclictest	3730590	-21	kworker/u8:2+flush-179:0	09:45:18	1
3694046	99	81	73,6	cyclictest	3712838	-21	kworker/u8:1+flush-179:0	08:25:00	1
3694044	99	78	72,4	cyclictest	3712838	-21	kworker/u8:1+events_unbound	09:05:32	0
3694044	99	78	72,4	cyclictest	3706473	-21	kworker/u8:2+events_unbound	08:35:01	0
3694044	99	78	71,5	cyclictest	3743470	-21	gpgv	09:55:01	0
3694044	99	78	70,5	cyclictest	2158010	-21	systemd-journal	09:50:01	0
3694046	99	76	68,6	cyclictest	2158010	-21	systemd-journal	08:45:00	1
3694046	99	76	67,7	cyclictest	3756868	-21	latency_hist	10:40:02	1
3694044	99	76	72,3	cyclictest	3705131	-21	kworker/u8:1+flush-179:0	07:55:22	0
3694044	99	76	64,8	cyclictest	3705131	-21	kworker/u8:1+flush-179:0	08:00:21	0
3694046	99	75	69,4	cyclictest	3745154	-21	kworker/u8:3+flush-179:0	10:10:25	1
3694044	99	75	69,4	cyclictest	3753445	-21	kworker/u8:1+flush-179:0	10:35:18	0
3694046	99	74	64,7	cyclictest	3758494	-21	kworker/u8:2+events_unbound	11:25:15	1
3694044	99	74	66,6	cyclictest	3714189	-21	latency_hist	08:25:01	0
3694046	99	73	61,9	cyclictest	3703300	-21	apt-get	07:50:11	1
3694044	99	73	67,5	cyclictest	3748615	-21	kworker/u8:2+flush-179:0	10:20:23	0
3694044	99	73	66,6	cyclictest	3706473	-21	kworker/u8:2+events_unbound	08:20:00	0
3694044	99	73	65,6	cyclictest	3750250	-21	kworker/u8:0+flush-179:0	10:20:00	0
3694044	99	72	67,4	cyclictest	3753445	-21	kworker/u8:1+flush-179:0	11:05:27	0
3694044	99	72	66,5	cyclictest	3732253	-21	kworker/u8:3+events_unbound	09:25:01	0
3694044	99	72	66,4	cyclictest	3712838	-21	kworker/u8:1+flush-179:0	08:55:17	0
3694044	99	72	65,5	cyclictest	3717345	-21	kworker/u8:0+flush-179:0	08:40:01	0
3694046	99	71	61,8	cyclictest	529	-21	rs:main		1
3694044	99	71	65,5	cyclictest	3730590	-21	kworker/u8:2+events_unbound	09:40:29	0
3694044	99	71	65,4	cyclictest	3717345	-21	kworker/u8:0+flush-179:0	09:35:23	0
3694044	99	71	62,7	cyclictest	3693909	-21	latency_hist	07:10:01	0
3694044	99	71	62,7	cyclictest	3693909	-21	latency_hist	07:10:01	0
3694044	99	71	61,8	cyclictest	3763479	-21	apt-get	11:00:10	0
3694046	99	69	64,4	cyclictest	3717345	-21	kworker/u8:0+flush-179:0	09:30:01	1
3694046	99	69	63,3	cyclictest	3717345	-21	kworker/u8:0+flush-179:0	09:15:22	1
3694046	99	69	62,5	cyclictest	3696795	-21	kworker/u8:0+flush-179:0	08:00:00	1
3694046	99	69	60,7	cyclictest	3703045	-21	latency_hist	07:50:00	1
3694044	99	69	63,4	cyclictest	3717345	-21	kworker/u8:0+flush-179:0	08:45:20	0
3694044	99	69	59,8	cyclictest	3760034	-21	latency_hist	10:50:00	0
3694044	99	69	57,9	cyclictest	3720551	-21	latency_hist	08:45:01	0
3694046	99	67	61,4	cyclictest	3693892	-21	kworker/u8:3+flush-179:0	07:20:12	1
3694046	99	67	58,7	cyclictest	3758494	-21	kworker/u8:2+flush-179:0	11:35:00	1
3694046	99	67	58,7	cyclictest	3758494	-21	kworker/u8:2+flush-179:0	11:35:00	1
3694044	99	67	57,7	cyclictest	3785986	-21	/usr/sbin/munin	12:10:15	0
3694051	99	66	63,1	cyclictest	0	-21	swapper/3	10:37:59	3
3694044	99	66	54,10	cyclictest	3699754	-21	apt-get	07:35:07	0
3694044	99	65	58,6	cyclictest	3748615	-21	kworker/u8:2+flush-179:0	10:15:01	0
3694044	99	65	58,5	cyclictest	3772157	-21	kworker/u8:0+flush-179:0	11:30:18	0
3694044	99	65	58,5	cyclictest	3772157	-21	kworker/u8:0+flush-179:0	11:30:17	0
3694044	99	65	53,8	cyclictest	2158010	-21	systemd-journal	11:30:00	0
3694046	99	64	58,5	cyclictest	3740194	-21	kworker/u8:1+flush-179:0	09:45:01	1
3694046	99	64	56,6	cyclictest	3773071	-21	kworker/u8:1+flush-179:0	11:45:00	1
3694046	99	64	55,6	cyclictest	3742853	-21	kworker/u8:0+events_unbound	09:50:27	1
3694044	99	64	59,4	cyclictest	3730590	-21	kworker/u8:2+flush-179:0	09:30:30	0
3694044	99	64	58,5	cyclictest	3696795	-21	kworker/u8:0+flush-179:0	07:42:34	0
3694044	99	63	57,5	cyclictest	3792408	-21	kworker/u8:3+flush-179:0	12:35:24	0
3694044	99	63	57,4	cyclictest	3782613	-21	kworker/u8:1+flush-179:0	12:25:15	0
3694044	99	63	54,6	cyclictest	3701698	-21	/usr/sbin/munin	07:45:12	0
3694044	99	63	53,4	cyclictest	3717345	-21	kworker/u8:0+events_unbound	09:00:15	0
3694044	99	62	57,3	cyclictest	3693892	-21	kworker/u8:3+flush-179:0	07:50:26	0
3694046	99	61	55,5	cyclictest	3782613	-21	kworker/u8:1+flush-179:0	12:30:01	1
3694044	99	61	56,3	cyclictest	3696795	-21	kworker/u8:0+flush-179:0	08:05:26	0
3694044	99	61	54,5	cyclictest	3779377	-21	kworker/u8:3+flush-179:0	12:15:15	0
3694044	99	61	54,4	cyclictest	3712838	-21	kworker/u8:1+events_unbound	09:10:13	0
3694044	99	61	53,5	cyclictest	3777802	-21	latency_hist	11:45:01	0
3694046	99	60	55,4	cyclictest	3772157	-21	kworker/u8:0+flush-179:0	11:50:34	1
3694046	99	60	54,4	cyclictest	3772157	-21	kworker/u8:0+flush-179:0	11:35:20	1
3694050	99	59	56,2	cyclictest	0	-21	swapper/2	07:31:59	2
3694044	99	59	49,5	cyclictest	3772157	-21	kworker/u8:0+events_unbound	11:50:22	0
3694046	99	58	48,6	cyclictest	3706473	-21	kworker/u8:2+flush-179:0	08:10:25	1
3694044	99	58	51,5	cyclictest	3758494	-21	kworker/u8:2+events_unbound	11:35:25	0
3694046	99	57	45,6	cyclictest	3730590	-21	kworker/u8:2+events_unbound	09:30:28	1
3694044	99	56	48,5	cyclictest	3768017	-21	kworker/u8:3+flush-179:0	11:15:19	0
3694046	99	55	49,4	cyclictest	3712838	-21	kworker/u8:1+flush-179:0	08:45:30	1
3694046	99	55	48,5	cyclictest	3693892	-21	kworker/u8:3+events_unbound	07:10:24	1
3694046	99	55	46,7	cyclictest	3772157	-21	kworker/u8:0+flush-179:0	12:00:23	1
3694044	99	55	48,5	cyclictest	3745154	-21	kworker/u8:3+flush-179:0	10:50:35	0
3694046	99	54	45,7	cyclictest	3750250	-21	kworker/u8:0+flush-179:0	10:15:22	1
3694046	99	53	46,5	cyclictest	3758494	-21	kworker/u8:2+flush-179:0	11:05:16	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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