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2026-08-12 - 06:03
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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
Characteristics of the 10 highest latencies:
System rackcslot4.osadl.org (updated Wed Aug 12, 2026 00:44:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
374895823680,28sleep00-21swapper/019:05:280
37503922264189,27sleep10-21swapper/119:09:501
136599570,4rtkit-daemon1364-21rtkit-daemon21:20:030
37635262560,5sleep03763064-21/usr/sbin/munin19:40:170
136599560,2rtkit-daemon1364-21rtkit-daemon23:01:041
375054699552,10cyclictest3772920-21apt-get20:05:200
375054699543,8cyclictest3782740-21apt-get20:30:140
37970312530,2sleep1835-21file16:32:061
375054699522,7cyclictest3850300-21apt-get22:20:130
375054699522,15cyclictest835-21file16:32:060
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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