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2026-04-27 - 11:23
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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 Apr 27, 2026 00:44:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
52289912859,62cyclictest297-21systemd-logind00:17:220
52289912655,63cyclictest298-21in:imuxsock23:12:210
52289912158,55cyclictest0-21swapper/019:07:350
52289912158,55cyclictest0-21swapper/019:07:350
52289912042,12cyclictest0-21swapper/021:37:590
52289911847,9cyclictest0-21swapper/022:42:430
52289911847,9cyclictest0-21swapper/022:42:430
52289911741,12cyclictest0-21swapper/021:32:540
52289911741,12cyclictest0-21swapper/021:32:540
5241991165,95cyclictest25205-21apt-get22:17:371
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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