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2026-08-16 - 18:38
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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 rack0slot0.osadl.org (updated Sun Aug 16, 2026 12:45:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
491021380,0sleep24909-21bash10:59:242
403421160,0sleep30-21swapper/311:32:043
196852860,1sleep6681ktimersoftd/609:55:346
116712800,3sleep61908699cyclictest11:16:356
58662790,0sleep31014-21runrttasks12:33:583
315102780,1sleep30-21swapper/310:30:003
315102780,1sleep30-21swapper/310:30:003
198452780,0sleep10-21swapper/112:10:561
114272770,0sleep20-21swapper/210:39:452
126952760,0sleep10-21swapper/111:49:401
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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