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2025-12-11 - 11:46
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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 rack1slot8.osadl.org (updated Thu Dec 11, 2025 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
30945998975,13cyclictest0-21swapper/120:05:211
3094499797731,59cyclictest0-21swapper/019:10:090
3094499760693,39cyclictest19307-21strings20:05:210
30945991188,61cyclictest78850irq/45-eth0-rx-23:10:591
30945991169,64cyclictest0-21swapper/119:11:591
309459911616,59cyclictest0-21swapper/123:38:001
309459911611,68cyclictest0-21swapper/119:48:591
106202980,3sleep015-21rcuop/123:57:060
3045328731,27sleep10-21swapper/119:05:241
30945998610,62cyclictest0-21swapper/119:52:591
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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