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2025-12-29 - 16:00
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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 rack0slot0.osadl.org (updated Mon Dec 29, 2025 12:45:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
654121190,3sleep51993299cyclictest11:59:195
1479221100,4sleep31991799cyclictest11:03:083
11542750,4sleep11990599cyclictest11:26:461
215302740,0sleep40-21swapper/409:52:094
210682740,0sleep00-21swapper/010:59:040
319822720,1sleep60-21swapper/612:13:556
224782720,0sleep60-21swapper/610:59:186
313692710,0sleep00-21swapper/010:34:590
184002700,0sleep50-21swapper/511:29:465
16852700,1sleep21679-21cp10:45:282
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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