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2025-10-23 - 06:14
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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 rack5slot3.osadl.org (updated Thu Oct 23, 2025 00:50:20)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2481721670,2sleep60-21swapper/619:05:216
2539128348,30sleep70-21swapper/719:09:577
2538128341,37sleep00-21swapper/019:09:500
2515828247,30sleep30-21swapper/319:06:403
2514828148,29sleep20-21swapper/219:06:312
2512328045,30sleep50-21swapper/519:06:105
2271728045,29sleep10-21swapper/119:05:011
2515027845,29sleep40-21swapper/419:06:334
26033995352,0cyclictest0-21swapper/323:15:113
26037995252,0cyclictest0-21swapper/700:02:447
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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