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2026-08-19 - 02:01
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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
Characteristics of the 10 highest latencies:
System rack3slot0.osadl.org (updated Wed Aug 19, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3199799150134,1cyclictest73-21ksoftirqd/722:37:117
52162980,1sleep6641ktimersoftd/600:22:426
254942960,1sleep7464-21systemd-journal21:45:057
31996999333,24cyclictest23209-21bash22:37:106
242642820,1sleep13197299cyclictest23:16:541
174512810,2sleep23198099cyclictest00:07:082
3199499770,77cyclictest3213-21kworker/4:222:37:104
3196499590,58cyclictest3102-21kworker/u16:422:37:100
247262590,0sleep40-21swapper/422:35:324
216612550,7sleep773-21ksoftirqd/721:28:397
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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