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2025-12-29 - 20:34
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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 Mon Dec 29, 2025 12:50:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
14321210570,30sleep70-21swapper/707:09:577
1282028984,2sleep10-21swapper/107:05:181
1223928782,2sleep60-21swapper/607:05:156
1421128644,37sleep20-21swapper/207:08:232
1409128654,28sleep30-21swapper/307:06:403
1414728441,38sleep40-21swapper/407:07:304
1413428451,29sleep00-21swapper/007:07:180
126102830,0sleep60-21swapper/612:25:176
1172627944,30sleep50-21swapper/507:05:065
14961995346,6cyclictest0-21swapper/309:25:013
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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