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2026-08-01 - 19:45
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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 rack8slot4.osadl.org (updated Sat Aug 01, 2026 12:44:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
7084192249184,20sleep00-21swapper/007:07:190
7084112234198,24sleep10-21swapper/107:07:121
7083492216186,20sleep40-21swapper/407:06:194
7085922214186,18sleep20-21swapper/207:09:462
7083512213184,19sleep60-21swapper/607:06:206
7084712210182,18sleep50-21swapper/507:08:055
7083112210181,19sleep30-21swapper/307:05:453
7083152207176,20sleep70-21swapper/707:05:497
71006599420,8cyclictest0-21swapper/312:14:593
71006299350,29cyclictest0-21swapper/111:59:541
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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