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2026-05-06 - 19:05
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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 Wed May 06, 2026 12:44:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2254899300,3cyclictest18357-21apt-get11:35:143
2254899300,2cyclictest17865-21perf10:25:003
22548992927,1cyclictest8786-21perf11:15:013
22548992927,1cyclictest8786-21perf11:15:013
2254899290,28cyclictest9897-21apt-get12:25:123
2254499290,28cyclictest24581-21apt-get09:30:122
2254499290,28cyclictest0-21swapper/209:20:002
2254499290,28cyclictest0-21swapper/207:45:132
2254499290,1cyclictest13443-21perf11:25:022
2254299290,28cyclictest12220-21apt-get12:30:111
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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