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2025-11-16 - 01:16
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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: ondemand
Compare latency of primary with shadow system
Characteristics of the 10 highest latencies:
System rack5slot4.osadl.org (updated Sat Nov 15, 2025 12:44:02)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
18428212262,6sleep30-21swapper/307:05:113
236492109100,6sleep10-21swapper/107:05:491
3184621080,5sleep12414399cyclictest09:21:181
23862210898,7sleep00-21swapper/007:08:370
23442210896,7sleep20-21swapper/207:05:262
504221060,0sleep30-21swapper/312:14:393
32212760,1sleep30-21swapper/310:32:253
268662680,0sleep20-21swapper/207:10:182
30952570,0sleep30-21swapper/311:05:273
26602540,0sleep20-21swapper/211:23:512
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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