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2026-08-19 - 02:42
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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 rackbslot7.osadl.org (updated Tue Aug 18, 2026 12:44:27)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1039221176,16sleep00-21swapper/007:07:460
10684991083,93cyclictest21285-21apt-get09:15:100
10684991064,87cyclictest26860-21apt-get10:15:020
10705991053,61cyclictest27609-21sort11:59:572
10705991053,61cyclictest27609-21sort11:59:572
10684991054,91cyclictest10364-21ssh10:40:160
10684991034,89cyclictest30859-21apt-get09:30:010
807921020,6sleep30-21swapper/309:45:033
106849910168,23cyclictest17612-21diskmemload10:55:190
10684999768,21cyclictest9641-21latency_hist08:44:490
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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