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2026-06-20 - 21:27
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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 Sat Jun 20, 2026 12:44:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
6114912268226,28sleep00-21swapper/007:09:010
6115812250210,25sleep10-21swapper/107:09:581
6980552680,2sleep00-21swapper/010:00:240
611721996011,21cyclictest656589-1kworker/1:1H09:25:011
179699590,12rtkit-daemon1795-21rtkit-daemon07:46:391
611721995317,15cyclictest770856-21ssh11:40:341
611721995315,19cyclictest649881-21python308:45:011
611721995219,8cyclictest671496-21apt-get09:25:161
611721995217,19cyclictest664163-21apt-get09:15:141
611721995217,14cyclictest749917-21ssh11:11:471
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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