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2026-08-31 - 01:02
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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 rack3slot6.osadl.org (updated Sun Aug 30, 2026 12:44:59)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2440528538,29sleep00-21swapper/007:05:260
25416997528,8cyclictest14-21ksoftirqd/010:25:300
25416997337,29cyclictest14-21ksoftirqd/008:00:140
25421997230,8cyclictest26-21ksoftirqd/111:05:171
25416997231,16cyclictest14-21ksoftirqd/012:05:000
25416997036,28cyclictest14-21ksoftirqd/010:45:300
25421996833,8cyclictest26-21ksoftirqd/107:30:151
25421996827,13cyclictest26-21ksoftirqd/107:20:011
25416996832,9cyclictest14-21ksoftirqd/008:50:010
2490626830,25sleep10-21swapper/107:06:281
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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