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2026-07-20 - 00:15
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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 Sun Jul 19, 2026 12:44:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2298399360,35cyclictest0-21swapper/109:35:011
22982993127,3cyclictest23191-21sh11:45:000
2298599300,29cyclictest9608-21apt-get07:50:123
2298599290,28cyclictest16482-21apt-get11:30:123
22984992927,1cyclictest646-21polkitd08:40:002
2298499290,28cyclictest841-21apt-get08:40:132
2298499290,28cyclictest0-21swapper/211:45:132
22983992928,1cyclictest27065-21cron10:45:011
2298399290,28cyclictest0-21swapper/112:10:111
2298399290,1cyclictest23477-21apt-get11:45:131
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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