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2026-09-11 - 23:28
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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 rackaslot8.osadl.org (updated Fri Sep 11, 2026 12:44:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
88962330300,20sleep20-21swapper/207:07:572
88692292261,21sleep10-21swapper/107:07:351
88992268239,19sleep00-21swapper/007:07:590
89902265234,20sleep30-21swapper/307:08:533
325772620,0sleep20-21swapper/209:30:142
232152610,1sleep30-21swapper/311:40:333
115252610,0sleep30-21swapper/311:34:213
256262590,0sleep30-21swapper/311:23:043
280112560,0sleep30-21swapper/312:03:363
217752550,0sleep228-21ksoftirqd/210:41:312
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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