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2025-08-27 - 02:15
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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
Characteristics of the 10 highest latencies:
System rackcslot4.osadl.org (updated Tue Aug 26, 2025 12:44:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
38524832269190,25sleep00-21swapper/007:06:520
38510112253185,53sleep10-21swapper/107:05:031
385289299135130,3cyclictest3865286-21kworker/u8:007:38:260
385289299672,43cyclictest3961063-21apt-get10:30:190
125899670,5rtkit-daemon4040895-21fschecks_count12:20:191
385289299652,42cyclictest4047585-21apt-get12:30:180
39921212630,4sleep10-21swapper/111:10:291
385289299632,41cyclictest4019319-21apt-get11:50:130
385289299631,41cyclictest3920277-40apt-check09:35:140
385289299622,39cyclictest4001708-21apt-get11:25:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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