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2026-07-14 - 16:18
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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 rack3slot6.osadl.org (updated Tue Jul 14, 2026 12:44:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3094529728,23sleep10-21swapper/107:08:301
3077129422,27sleep00-21swapper/007:06:370
31276997927,17cyclictest0-21swapper/109:55:131
31276997552,9cyclictest26-21ksoftirqd/111:50:341
3127099756,60cyclictest17694-21apt-get08:00:110
31276997242,18cyclictest7052-21seq07:30:241
3127099717,54cyclictest4549-21apt-get08:55:140
301602700,6sleep00-21swapper/010:05:280
31276996950,11cyclictest26-21ksoftirqd/108:50:121
3127099696,12cyclictest0-21swapper/008:35:110
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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