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2026-03-15 - 10:17
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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 Sun Mar 15, 2026 00:43:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
145450999282,21cyclictest1617114-21apt-get21:50:111
145450999271,23cyclictest1785251-21apt-get00:35:111
145450599261,22cyclictest1744705-21apt-get23:55:110
1454514992517,1cyclictest191rcu_preempt22:05:003
1454512992523,1cyclictest0-21swapper/223:20:192
1454512992523,1cyclictest0-21swapper/222:05:002
1454512992522,1cyclictest1662980-21apt-get22:35:122
145450999252,20cyclictest1683211-21apt-get22:55:091
145450999251,20cyclictest1662980-21apt-get22:35:111
1454505992520,3cyclictest1734106-21apt-get23:45:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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