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2026-07-04 - 03:17
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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 rackeslot5.osadl.org (updated Fri Jul 03, 2026 12:44:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1698699311,29cyclictest0-21swapper/207:30:002
16983993028,1cyclictest26581-21munin-run07:30:001
1699199290,28cyclictest20741-21apt-get09:35:133
1699199290,28cyclictest0-21swapper/310:05:133
16986992927,1cyclictest24898-21munin-run08:35:002
16986992927,1cyclictest0-21swapper/211:30:012
1698699290,28cyclictest0-21swapper/209:55:112
1698699290,28cyclictest0-21swapper/208:35:122
1698699290,1cyclictest7600-21apt-get10:15:132
1698699290,1cyclictest11412-21apt-get09:15:112
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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