OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #5, slot #4

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

Characteristics of the 50 highest latencies:

System rack5slot4s.osadl.org (updated Thu Apr 03, 2025 12:44:40)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
4633	99	177	175,1	cyclictest	0	-21	swapper/1	07:13:11	1
4929	2	125	0,1	sleep0	4935	-21	cpu	07:10:13	0
4379	2	124	100,10	sleep2	0	-21	swapper/2	07:08:52	2
4636	99	115	111,3	cyclictest	12202	-21	kworker/u16:1+events_unbound	07:38:16	2
4412	2	115	103,9	sleep0	0	-21	swapper/0	07:09:17	0
4174	2	114	104,7	sleep3	0	-21	swapper/3	07:06:12	3
31811	2	114	101,10	sleep1	0	-21	swapper/1	07:05:21	1
4636	99	97	95,1	cyclictest	0	-21	swapper/2	07:13:11	2
4636	99	87	83,3	cyclictest	13108	-21	kworker/u16:0+events_unbound	07:50:31	2
4636	99	77	73,3	cyclictest	12334	-21	kworker/u16:2+events_unbound	11:40:27	2
4636	99	75	71,3	cyclictest	13108	-21	kworker/u16:0+events_unbound	08:20:27	2
4636	99	74	70,3	cyclictest	12334	-21	kworker/u16:2+events_unbound	12:30:52	2
4636	99	73	69,3	cyclictest	13108	-21	kworker/u16:0+events_unbound	09:55:27	2
4636	99	71	67,3	cyclictest	12334	-21	kworker/u16:2+events_unbound	10:00:04	2
4636	99	70	66,3	cyclictest	13108	-21	kworker/u16:0+events_unbound	10:55:13	2
4636	99	70	66,3	cyclictest	13108	-21	kworker/u16:0+events_unbound	08:00:28	2
4636	99	70	66,3	cyclictest	13108	-21	kworker/u16:0+events_unbound	08:00:28	2
4636	99	70	66,3	cyclictest	13108	-21	kworker/u16:0+events_unbound	07:55:30	2
4636	99	69	65,3	cyclictest	13108	-21	kworker/u16:0+events_unbound	10:10:23	2
4636	99	69	65,3	cyclictest	13108	-21	kworker/u16:0+events_unbound	07:25:22	2
4636	99	68	64,3	cyclictest	12202	-21	kworker/u16:1+events_unbound	09:40:27	2
4636	99	68	62,3	cyclictest	12334	-21	kworker/u16:2+events_unbound	10:30:26	2
4636	99	67	63,3	cyclictest	12202	-21	kworker/u16:1+events_unbound	07:40:19	2
4636	99	66	62,3	cyclictest	12334	-21	kworker/u16:2+events_unbound	12:20:25	2
4636	99	65	62,2	cyclictest	13108	-21	kworker/u16:0+events_unbound	08:15:14	2
4636	99	65	62,2	cyclictest	12202	-21	kworker/u16:1+events_unbound	09:35:14	2
4636	99	65	61,3	cyclictest	13108	-21	kworker/u16:0+events_unbound	11:50:02	2
4636	99	65	61,3	cyclictest	12334	-21	kworker/u16:2+events_unbound	10:40:24	2
4636	99	64	61,2	cyclictest	12202	-21	kworker/u16:1+events_unbound	09:50:22	2
4636	99	62	58,3	cyclictest	12202	-21	kworker/u16:1+events_unbound	08:35:25	2
4636	99	61	57,3	cyclictest	12334	-21	kworker/u16:2+events_unbound	12:15:26	2
4636	99	60	57,2	cyclictest	12334	-21	kworker/u16:2+events_unbound	12:10:20	2
4636	99	60	57,2	cyclictest	12202	-21	kworker/u16:1+events_unbound	08:10:17	2
4636	99	60	56,3	cyclictest	13108	-21	kworker/u16:0+events_unbound	07:45:15	2
4636	99	60	56,3	cyclictest	12334	-21	kworker/u16:2+events_unbound	11:20:28	2
4636	99	60	56,3	cyclictest	12202	-21	kworker/u16:1+events_unbound	08:40:22	2
4636	99	59	56,2	cyclictest	12202	-21	kworker/u16:1+events_unbound	08:50:12	2
4636	99	59	55,3	cyclictest	13108	-21	kworker/u16:0+events_unbound	08:55:27	2
4636	99	59	52,3	cyclictest	12334	-21	kworker/u16:2+events_unbound	12:35:23	2
4636	99	58	54,3	cyclictest	13108	-21	kworker/u16:0+events_unbound	12:00:18	2
4636	99	58	54,3	cyclictest	13108	-21	kworker/u16:0+events_unbound	10:20:23	2
4636	99	58	54,3	cyclictest	13108	-21	kworker/u16:0+events_unbound	10:20:22	2
4636	99	58	54,3	cyclictest	12202	-21	kworker/u16:1+events_unbound	09:15:23	2
4636	99	56	53,2	cyclictest	12202	-21	kworker/u16:1+events_unbound	07:30:34	2
4636	99	56	52,3	cyclictest	13108	-21	kworker/u16:0+events_unbound	09:20:24	2
4636	99	56	52,3	cyclictest	12202	-21	kworker/u16:1+events_unbound	09:05:17	2
4636	99	55	51,3	cyclictest	13108	-21	kworker/u16:0+events_unbound	10:50:21	2
4636	99	55	51,3	cyclictest	13108	-21	kworker/u16:0+events_unbound	09:10:22	2
4636	99	55	49,3	cyclictest	12202	-21	kworker/u16:1+events_unbound	07:20:23	2
4636	99	54	51,2	cyclictest	12334	-21	kworker/u16:2+events_unbound	11:00:14	2
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


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