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2026-03-24 - 02:24
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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 rackeslot8.osadl.org (updated Mon Mar 23, 2026 12:43:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
13849402710,1sleep20-21swapper/210:10:262
1127185992219,1cyclictest0-21swapper/311:45:003
112718599211,15cyclictest1417982-21taskset10:34:043
1127185992017,1cyclictest0-21swapper/310:25:173
112718599201,15cyclictest1461606-21taskset11:00:183
15547272190,1sleep2421rcuc/212:00:192
1127185991916,1cyclictest0-21swapper/311:25:143
112718599191,14cyclictest1575441-21taskset12:14:553
112718599191,14cyclictest1560053-21taskset12:05:043
112718599191,14cyclictest1518581-21taskset11:35:263
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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