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2026-09-10 - 18:39
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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
Characteristics of the 10 highest latencies:
System rack5slot0.osadl.org (updated Thu Sep 10, 2026 12:44:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3005821770,1sleep02363199cyclictest10:50:210
2040721290,1sleep020398-21sshd12:32:470
1852521170,3sleep12363799cyclictest10:22:571
36962970,2sleep23689-21sshd11:24:452
52852920,1sleep30-21swapper/309:51:443
2333929232,56sleep10-21swapper/107:09:371
30392890,2sleep30-21swapper/311:31:513
57672880,1sleep02024-21nfsd10:47:240
104712860,2sleep210469-21sshd09:23:392
2311828535,46sleep30-21swapper/307:06:543
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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