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2026-08-08 - 20:13
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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 rack8slot4.osadl.org (updated Sat Aug 08, 2026 12:44:39)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
8879532228166,19sleep50-21swapper/507:08:015
8878162226166,19sleep70-21swapper/707:06:027
8879492225166,18sleep10-21swapper/107:07:571
8879682214149,20sleep20-21swapper/207:08:152
8879392214185,19sleep00-21swapper/007:07:480
8880452213184,19sleep30-21swapper/307:09:213
8879812212184,19sleep40-21swapper/407:08:244
8879092207174,21sleep60-21swapper/607:07:226
9766292590,0sleep30-21swapper/309:45:003
88978299360,31cyclictest1063428-21tar12:20:023
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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