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2025-12-21 - 04:34
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Data to construct the above plot have been generated using the RT test utility cyclictest.

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 rack7slot8.osadl.org (updated Sun Dec 21, 2025 01:44:19)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
30288211420,10sleep030287-21/usr/sbin/munin19:05:270
311539913346,34cyclictest8462-21latency_hist00:00:090
311539913152,37cyclictest9755-21apt-get00:07:070
311539912955,35cyclictest5593-21apt-get23:52:120
311539912945,33cyclictest2701-21apt-get23:40:450
311539912942,34cyclictest2853-21ntp_states21:30:410
311539912655,24cyclictest13879-21apt-get00:22:110
311539912649,37cyclictest1174-21apt-get19:17:050
311539912649,21cyclictest31084-21apt-get19:10:450
311539912349,20cyclictest11474-21irqstats22:05:310
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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