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2026-05-23 - 07:28
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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 rack3slot6.osadl.org (updated Sat May 23, 2026 00:44:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1370829920,32sleep10-21swapper/119:06:151
181682930,8chrt18162-21apt-get23:50:140
132162916,73sleep013222-21ntp_states19:05:250
14241999072,12cyclictest14-21ksoftirqd/022:30:120
14241998434,44cyclictest0-21swapper/021:35:110
14241998337,39cyclictest1815-21taskset00:35:120
14241997947,19cyclictest32431-21apt-get23:00:120
14241997852,12cyclictest25914-21apt-get21:10:130
14241997656,12cyclictest0-21swapper/021:25:120
14241997647,13cyclictest17143-21apt-get20:45:120
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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