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2025-11-08 - 17:36
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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 10 highest latencies:
System rack0slot4.osadl.org (updated Sat Nov 08, 2025 00:46:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
8837662360316,14sleep20-21swapper/219:07:568
8837122360316,13sleep100-21swapper/1019:07:162
8803382359316,35sleep70-21swapper/719:05:0413
8803362359317,14sleep50-21swapper/519:05:0211
8838742356313,15sleep150-21swapper/1519:09:307
8838512354311,14sleep110-21swapper/1119:09:103
8837112354312,14sleep90-21swapper/919:07:1415
8835982351305,15sleep80-21swapper/819:05:3714
8835872343332,7sleep40-21swapper/419:05:3210
8838962342319,15sleep140-21swapper/1419:09:456
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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