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2026-05-14 - 23:30
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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 Thu May 14, 2026 12:45:06)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2584829521,27sleep00-21swapper/007:08:110
2584829521,27sleep00-21swapper/007:08:100
2620099935,18cyclictest13029-21apt-get12:35:120
26200999143,35cyclictest14-21ksoftirqd/012:25:110
2620099855,43cyclictest0-21swapper/010:50:140
270212810,9chrt0-21swapper/007:10:300
244572807,61sleep124461-21apt-get07:05:121
244572807,61sleep124461-21apt-get07:05:121
191762760,6sleep019172-21df_inode11:20:190
191762760,6sleep019172-21df_inode11:20:190
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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