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2025-10-21 - 23:00
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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 rackeslot8.osadl.org (updated Tue Oct 21, 2025 12:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
399191321100,1sleep00-21swapper/011:05:240
38825392800,1sleep20-21swapper/210:00:172
39038762350,1chrt3903877-21ssh10:11:301
3650210992724,2cyclictest4010503-21idleruntime-cro11:20:012
41129482250,1chrt0-21swapper/012:20:190
3650207992521,2cyclictest0-21swapper/112:00:011
3650213992320,1cyclictest0-21swapper/309:55:013
3650210992219,2cyclictest500-21avahi-daemon09:35:012
3650210992219,2cyclictest0-21swapper/209:55:012
3650210992219,2cyclictest0-21swapper/208:30:002
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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