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2024-12-09 - 17:54

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #0, slot #5

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, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 20 highest latencies:
System rack0slot5s.osadl.org (updated Fri Nov 29, 2024 00:46:19)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
7216962360339,14sleep70-21swapper/719:08:1713
7217712354312,16sleep110-21swapper/1119:09:243
7215332352311,14sleep50-21swapper/519:05:5011
7215942350311,14sleep120-21swapper/1219:06:454
7187832349310,13sleep100-21swapper/1019:05:072
7216602348327,14sleep60-21swapper/619:07:4412
7215962343322,14sleep140-21swapper/1419:06:476
7216392342320,14sleep40-21swapper/419:07:2610
7216072342320,15sleep80-21swapper/819:06:5814
7215912342321,14sleep90-21swapper/919:06:4115
7215052339318,14sleep130-21swapper/1319:05:265
7216162336314,14sleep150-21swapper/1519:07:057
7215302336316,13sleep20-21swapper/219:05:478
7216732335314,14sleep10-21swapper/119:07:551
7215312333312,14sleep30-21swapper/319:05:479
7216352329307,15sleep00-21swapper/019:07:220
72215899573,25cyclictest0-21swapper/1220:35:374
72215899544,25cyclictest0-21swapper/1221:41:314
72215899544,25cyclictest0-21swapper/1221:41:304
72215899533,25cyclictest0-21swapper/1220:46:354
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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