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2024-04-19 - 10:43

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #3, slot #6

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.
Unexpectedly long latencies may be caused by SMIs
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 20 highest latencies:
System rack3slot6s.osadl.org (updated Fri Apr 19, 2024 00:43:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1378821340,0sleep20-21swapper/219:30:002
5329210997,6sleep10-21swapper/119:05:521
5598210783,19sleep00-21swapper/019:08:230
5526210695,6sleep20-21swapper/219:08:172
5733210384,14sleep30-21swapper/319:09:593
146452730,0sleep30-21swapper/322:11:183
119642240,1sleep20-21swapper/222:45:002
576499211,2cyclictest0-21swapper/219:45:102
5765992017,2cyclictest10913-21kworker/u8:300:08:053
576599201,2cyclictest0-21swapper/321:15:043
576599200,2cyclictest0-21swapper/319:45:103
576499200,18cyclictest0-21swapper/223:35:102
576299200,18cyclictest0-21swapper/020:25:080
259872200,1sleep225988-21sh22:25:002
576599192,2cyclictest0-21swapper/300:12:043
5764991916,2cyclictest7589-21kworker/u8:022:53:042
5764991916,2cyclictest4743-21kworker/u8:023:57:052
5764991916,2cyclictest4743-21kworker/u8:023:57:052
5764991916,2cyclictest26196-21kworker/u8:020:35:032
5764991916,2cyclictest25164-21kworker/u8:121:49:052
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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