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2026-09-05 - 13:40
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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 20 highest latencies:
System rack8slot4.osadl.org (updated Sat Sep 05, 2026 00:44:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
41397802237170,22sleep70-21swapper/719:05:147
41398352233178,45sleep60-21swapper/619:06:026
41420652231167,19sleep40-21swapper/419:09:054
41421022223165,19sleep50-21swapper/519:09:395
41419982210159,16sleep20-21swapper/219:08:062
41419872210182,19sleep00-21swapper/019:07:570
41398302208178,20sleep10-21swapper/119:05:571
41398032205175,20sleep30-21swapper/319:05:343
4142381993938,1cyclictest0-21swapper/723:00:017
414237899343,30cyclictest80077-21cron23:05:016
414237699320,31cyclictest24378-21cron21:25:015
414236699320,31cyclictest4173710-21packagekitd20:05:011
414236499320,31cyclictest49418-21cron22:10:010
414236499320,31cyclictest1-21systemd22:45:010
4142376993128,2cyclictest85625-21cron23:15:015
4142376993127,3cyclictest49415-21cron22:10:015
4142370993128,3cyclictest0-21swapper/323:55:013
414237099310,29cyclictest887-21dbus-daemon22:30:013
4142366993126,4cyclictest379-21systemd-journal21:00:011
4142378993027,2cyclictest122029-21unin-run00:20:026
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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