OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #f, slot #7

Rack #0/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #1/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #2/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #3/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #4/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #5/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #6/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #7/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #8/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #9/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #a/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #b/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #c/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #d/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #e/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #f/#0 #1 #2 #3 #4 #5 #6 #7 #8
Special All - All RT - Optimization - Ethernet - Thumbnails

Click here to display the system's profile data.

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, lowest P state: performance
Compare latency of primary with shadow system

Characteristics of the 50 highest latencies:

System rackfslot7s.osadl.org (updated Fri Nov 22, 2024 00:44:18)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
3430663	2	164	139,20	sleep2	0	-21	swapper/2	19:08:39	2
3430579	2	157	131,21	sleep3	0	-21	swapper/3	19:07:37	3
3430534	2	148	106,36	sleep1	0	-21	swapper/1	19:07:02	1
3430581	2	147	103,38	sleep0	0	-21	swapper/0	19:07:37	0
3430991	99	90	87,2	cyclictest	3527082	-21	kworker/u8:4+flush-259:0	00:35:00	1
3430996	99	82	78,3	cyclictest	3458352	-21	kworker/u8:0+flush-259:0	20:50:01	3
3430996	99	57	48,6	cyclictest	3519316	-21	awk	23:45:00	3
3430993	99	57	55,2	cyclictest	3426050	-21	kworker/u8:0+flush-259:0	19:25:21	2
3430986	99	56	51,3	cyclictest	3478942	-21	apt-get	21:40:01	0
3430993	99	52	46,4	cyclictest	3450231	-21	apt-get	20:10:00	2
3430986	99	52	45,4	cyclictest	3525010	-21	apt-get	00:05:00	0
3430991	99	51	46,4	cyclictest	3496241	-21	kworker/u8:1+flush-259:0	22:39:59	1
3430996	99	49	45,3	cyclictest	3496241	-21	kworker/u8:1+flush-259:0	00:00:00	3
3430986	99	48	47,1	cyclictest	3501395	-21	kworker/u8:4+events_unbound	23:00:20	0
3430986	99	47	46,1	cyclictest	3466341	-21	kworker/u8:3+events_unbound	21:19:55	0
3430986	99	47	46,1	cyclictest	3429020	-21	kworker/u8:2+events_unbound	19:10:21	0
3430986	99	46	42,3	cyclictest	3475812	-21	kworker/u8:0+flush-259:0	22:30:00	0
3430996	99	43	39,3	cyclictest	3460021	-21	kworker/u8:1+flush-259:0	21:15:00	3
3430996	99	43	39,3	cyclictest	3460021	-21	kworker/u8:1+flush-259:0	21:15:00	3
3430993	99	43	41,2	cyclictest	3460021	-21	kworker/u8:1+events_unbound	21:40:02	2
3430986	99	43	40,2	cyclictest	3429020	-21	kworker/u8:2+flush-259:0	19:20:01	0
3430996	99	41	36,4	cyclictest	3496241	-21	kworker/u8:1+flush-259:0	23:30:00	3
3430996	99	41	36,3	cyclictest	3520664	-21	diskstats	23:50:10	3
3430993	99	41	38,2	cyclictest	3504865	-21	kworker/u8:2+events_unbound	23:57:07	2
3430986	99	41	39,2	cyclictest	3429020	-21	kworker/u8:2+flush-259:0	19:50:00	0
3430986	99	40	38,2	cyclictest	3504865	-21	kworker/u8:2+events_unbound	23:44:01	0
3430986	99	39	37,2	cyclictest	3527082	-21	kworker/u8:4+events_unbound	00:27:36	0
3430993	99	38	36,2	cyclictest	3475812	-21	kworker/u8:0+flush-259:0	21:55:14	2
3430993	99	38	30,5	cyclictest	3535742	-21	python3	00:35:19	2
3430991	99	38	32,4	cyclictest	3536340	-21	latency_hist	00:40:00	1
3430996	99	37	34,2	cyclictest	3514298	-21	apt-get	23:30:01	3
3430986	99	37	35,2	cyclictest	3527082	-21	kworker/u8:4+events_unbound	00:11:56	0
3430986	99	37	35,2	cyclictest	3519342	-21	kworker/u8:0+events_unbound	23:56:00	0
3430986	99	37	35,2	cyclictest	3504865	-21	kworker/u8:2+events_unbound	23:21:38	0
3430986	99	37	35,2	cyclictest	3504865	-21	kworker/u8:2+events_unbound	23:21:37	0
3430986	99	37	35,2	cyclictest	3429020	-21	kworker/u8:2+events_unbound	20:10:14	0
3430986	99	37	31,4	cyclictest	3447056	-21	latency_hist	20:00:01	0
3430993	99	36	33,2	cyclictest	3475812	-21	kworker/u8:0+flush-259:0	22:05:01	2
3430991	99	36	34,2	cyclictest	3504865	-21	kworker/u8:2+events_unbound	23:50:18	1
3430991	99	36	34,2	cyclictest	3429020	-21	kworker/u8:2+flush-259:0	19:37:39	1
3430991	99	36	33,2	cyclictest	3501395	-21	kworker/u8:4+events_unbound	23:04:59	1
3430986	99	36	35,1	cyclictest	3466341	-21	kworker/u8:3+events_unbound	21:32:00	0
3430986	99	36	32,3	cyclictest	3501395	-21	kworker/u8:4+flush-259:0	23:10:00	0
3430993	99	35	33,2	cyclictest	3504865	-21	kworker/u8:2+flush-259:0	23:10:14	2
3430986	99	35	34,1	cyclictest	3458352	-21	kworker/u8:0+events_unbound	20:53:18	0
3430986	99	35	33,2	cyclictest	3475812	-21	kworker/u8:0+events_unbound	22:04:10	0
3430986	99	35	33,2	cyclictest	3466341	-21	kworker/u8:3+events_unbound	21:42:20	0
3430986	99	35	32,2	cyclictest	3422242	-21	kworker/u8:1+events_unbound	20:02:16	0
3430996	99	34	30,3	cyclictest	3469488	-21	kworker/u8:2+flush-259:0	21:10:01	3
3430991	99	34	31,2	cyclictest	3521816	-21	kworker/u8:3+events_unbound	00:05:22	1
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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This page was last modified on 2024-07-29 - 23:00