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2026-05-17 - 20:04
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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 Sun May 17, 2026 12:44:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1338521270,3sleep03275599cyclictest11:45:410
2730221250,4sleep13276199cyclictest10:23:361
2525721240,1sleep03275599cyclictest10:56:410
3222929432,49sleep30-21swapper/307:06:463
35822920,1sleep00-21swapper/011:33:470
3236029127,43sleep10-21swapper/107:08:241
116752880,3sleep33276599cyclictest11:06:053
90042860,1sleep28995-21sshd12:03:242
86852850,2sleep38687-21sshd10:14:403
319192830,1sleep00-21swapper/012:14:390
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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