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2025-03-18 - 05:21
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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 rackeslot5.osadl.org (updated Tue Mar 18, 2025 00:44:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
507399300,29cyclictest609-21dbus-daemon22:05:003
506399300,29cyclictest303-21systemd-journal23:45:010
507399290,1cyclictest9287-21cron21:50:003
5069992927,1cyclictest26905-21cron00:00:012
506999290,28cyclictest30892-21perf22:50:002
506999290,1cyclictest0-21swapper/223:30:002
5067992928,1cyclictest6724-21apt-get00:30:081
506799290,28cyclictest9127-21apt-get20:30:161
5063992927,1cyclictest16273-21cron22:05:000
506399290,1cyclictest0-21swapper/000:05:020
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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