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2026-08-25 - 15:22
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Data to construct the above plot have been generated using the RT test utility cyclictest.

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 rackeslot4.osadl.org (updated Tue Aug 25, 2026 00:43:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
662258993022,6cyclictest877142-21turbostat22:40:002
66225899301,21cyclictest835302-21ntpq21:55:232
66225899300,20cyclictest0-21swapper/221:40:002
66225899291,21cyclictest667568-21apt-get19:15:132
662258992820,7cyclictest987204-21cron00:40:002
662258992819,7cyclictest0-21swapper/221:45:002
66225899280,21cyclictest790091-21unin-run21:15:002
66225899272,21cyclictest662476-21apt-get19:10:112
66225899271,1cyclictest0-21swapper/222:20:212
66225899270,2cyclictest0-21swapper/219:35:212
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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