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2026-06-12 - 22:41
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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 20 highest latencies:
System rackeslot2.osadl.org (updated Fri Jun 12, 2026 12:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
286252421580,2sleep30-21swapper/310:15:033
281694921540,2sleep30-21swapper/309:42:323
274351721150,2sleep30-21swapper/308:50:263
30481512400,1sleep03048155-21sed12:20:250
3153791341,14phc2sys0-21swapper/309:20:013
2617209992919,5cyclictest0-21swapper/012:40:010
2617209992714,6cyclictest0-21swapper/010:15:280
2617209992514,6cyclictest2904426-21phc2sys-jitter10:40:290
2617209992510,6cyclictest0-21swapper/011:10:030
261720999249,5cyclictest0-21swapper/010:30:160
2617209992421,2cyclictest2773390-21systemd09:15:010
2617209992414,5cyclictest2921851-21cpuspeed_turbos10:55:220
2617209992412,2cyclictest2892170-21apt-get10:35:190
2617210992320,2cyclictest2716964-21cron08:30:001
261720999238,6cyclictest0-21swapper/012:00:010
261720999232,16cyclictest0-21swapper/007:20:320
2617209992312,5cyclictest2991932-21kthreadcore11:40:270
2617213992219,1cyclictest0-21swapper/210:45:012
2617210992219,2cyclictest2987632-21cut11:40:011
2617210992216,2cyclictest17750irq/132-ahci[0000:00:17.0]09:15:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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