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2024-07-27 - 06:41
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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 rack0slot4.osadl.org (updated Sat Jul 27, 2024 00:46:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
26047492402395,4sleep110-21swapper/1119:05:333
260650599372367,2cyclictest2638931-21kworker/u32:1+i915-dp20:11:420
26013672354309,35sleep140-21swapper/1419:05:056
26057402346338,5sleep130-21swapper/1319:08:495
26048132346332,9sleep60-21swapper/619:05:4512
26047582342318,15sleep120-21swapper/1219:05:354
26058582339315,14sleep30-21swapper/319:09:129
26047892339316,14sleep10-21swapper/119:05:401
26050512338315,14sleep50-21swapper/519:06:3211
26053442337313,15sleep150-21swapper/1519:07:307
26053132337315,14sleep90-21swapper/919:07:2515
26049592337313,15sleep40-21swapper/419:06:1510
26060402336312,15sleep70-21swapper/719:09:4713
26058112334311,14sleep100-21swapper/1019:09:012
26051252334312,14sleep20-21swapper/219:06:458
26051082334310,15sleep00-21swapper/019:06:440
26051542333309,15sleep80-21swapper/819:06:5214
260654399316315,1cyclictest0-21swapper/1123:42:033
2606528993110,11cyclictest0-21swapper/720:11:4313
260651599310310,0cyclictest66550irq/155-i91523:42:039
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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