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2026-04-09 - 13:39
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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 Thu Apr 09, 2026 00:43:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3741262993732,3cyclictest0-21swapper/220:20:002
3741262993217,2cyclictest0-21swapper/219:35:012
374126299321,3cyclictest4041727-21apt-get00:05:102
3741262992919,1cyclictest0-21swapper/223:05:172
3741262992917,5cyclictest4057477-21grep00:20:152
374126299290,2cyclictest3862994-21apt21:10:002
374126299280,20cyclictest0-21swapper/220:45:102
374125999281,25cyclictest4005582-21cron23:30:001
374126299270,19cyclictest0-21swapper/222:15:112
374125999272,21cyclictest3741472-21apt-get19:10:101
374125999271,21cyclictest0-21swapper/120:30:101
374125999271,21cyclictest0-21swapper/119:30:101
3741262992620,4cyclictest3985589-21apt-get23:10:112
374126299260,20cyclictest0-21swapper/222:50:112
374125999262,3cyclictest3904668-21apt-get21:50:121
374125999262,21cyclictest4072558-21apt-get00:35:121
374125999261,22cyclictest3965324-21apt-get22:50:101
374125999261,21cyclictest3889079-21apt-get21:35:101
374125999261,21cyclictest3807629-21apt-get20:15:111
374125499260,2cyclictest211rcuc/020:34:590
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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