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2026-06-15 - 06:00
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Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
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 rackbslot7.osadl.org (updated Mon Jun 15, 2026 00:44:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
473822280,21sleep30-21swapper/318:54:233
473822280,21sleep30-21swapper/318:54:233
5241219714,160sleep04607-21/usr/sbin/munin18:54:460
5241219714,160sleep04607-21/usr/sbin/munin18:54:460
60859911850,61cyclictest297-21systemd-logind21:29:040
5287211713,68sleep15327-21/usr/sbin/munin18:54:471
5287211713,68sleep15327-21/usr/sbin/munin18:54:471
60859911235,9cyclictest0-21swapper/021:14:330
6085991113,28cyclictest11850-21timerandwakeup22:44:400
6085991112,22cyclictest8345-21apt-get20:44:150
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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