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2026-06-23 - 09:23
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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
Characteristics of the 10 highest latencies:
System rackcslot4.osadl.org (updated Tue Jun 23, 2026 00:44:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
4521702318277,27sleep00-21swapper/019:08:040
4520092317275,28sleep10-21swapper/119:06:211
179699670,13rtkit-daemon1795-21rtkit-daemon19:57:161
179699560,7rtkit-daemon641743-21sh00:21:181
45249799547,14cyclictest625182-21grep00:00:010
179699540,4rtkit-daemon1795-21rtkit-daemon19:31:281
45249799499,23cyclictest599737-21apt-get23:25:120
179699490,3rtkit-daemon1795-21rtkit-daemon21:57:251
179699490,1rtkit-daemon1795-21rtkit-daemon22:57:420
45250299487,23cyclictest522846-21grep21:40:001
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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