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2026-05-13 - 15:07
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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 20 highest latencies:
System rackeslot4.osadl.org (updated Wed May 13, 2026 00:43:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
75261499291,21cyclictest870225-21apt-get21:05:110
752614992817,10cyclictest0-21swapper/022:05:000
752614992813,2cyclictest0-21swapper/019:55:010
75261499281,20cyclictest1083886-21apt-get00:35:120
752622992721,3cyclictest860092-21apt-get20:55:113
75261499270,20cyclictest64-21kcompactd020:19:570
75261499270,1cyclictest0-21swapper/023:45:110
75262299262,3cyclictest804389-21apt-get20:00:113
75262299262,21cyclictest762996-21apt-get19:20:133
752622992619,4cyclictest931573-21apt-get22:05:123
75261999261,23cyclictest1047650-21cron00:00:012
75261699262,22cyclictest910984-21apt-get21:45:121
75261699261,21cyclictest752837-21apt-get19:10:111
752614992618,7cyclictest0-21swapper/021:45:220
75261499260,1cyclictest0-21swapper/022:25:120
75262299252,3cyclictest977130-21apt-get22:50:123
75262299252,3cyclictest1047930-21apt-get00:00:123
752622992520,3cyclictest768489-21apt-get19:25:133
75262299251,4cyclictest1068091-21taskset00:17:023
75262299251,21cyclictest1084376-21sort00:35:163
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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