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2026-08-03 - 06:05
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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 Aug 03, 2026 00:44:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
69979911242,61cyclictest0-21swapper/019:21:180
69979910931,47cyclictest0-21swapper/000:07:250
69979910545,52cyclictest0-21swapper/000:16:430
6789210518,58sleep26825-21unin-run18:55:452
663321056,16sleep10-21swapper/118:54:301
6997991023,62cyclictest26697-21seq23:02:070
6997991023,62cyclictest26697-21seq23:02:070
6997991004,84cyclictest14435-21apt-get19:15:550
658821000,8sleep20-21swapper/223:21:182
658821000,8sleep20-21swapper/223:21:182
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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