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2026-04-19 - 15:21
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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 rack7slot8.osadl.org (updated Sun Apr 19, 2026 02:44:18)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
28398224024,72sleep027817-21/usr/sbin/munin19:05:360
290009916824,124cyclictest1408-21nginx20:18:090
29000991678,15cyclictest801-21dbus-daemon00:25:360
29000991677,14cyclictest77772sleep019:52:010
29000991658,16cyclictest29323-21apt-get21:22:080
29000991618,20cyclictest3470-21df19:35:170
29000991618,16cyclictest12634-21apt-get22:18:170
29000991616,19cyclictest29777-21chrt19:11:250
290009916120,21cyclictest1285-21lldpd23:37:320
290009915939,104cyclictest10250irq/56-4a10000020:40:030
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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