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2026-07-15 - 15:59
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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 Wed Jul 15, 2026 12:44:38)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
33006752245185,19sleep20-21swapper/207:06:272
33006582233170,21sleep50-21swapper/507:06:135
33005902233173,49sleep30-21swapper/307:05:153
33005932215186,19sleep60-21swapper/607:05:186
33005972211183,19sleep10-21swapper/107:05:221
33008242209179,20sleep00-21swapper/007:08:340
33009052208179,19sleep70-21swapper/707:09:377
33006662203171,20sleep40-21swapper/407:06:214
330202399360,31cyclictest3431718-21apt-get11:05:016
330201299340,33cyclictest0-21swapper/207:44:572
3302023993227,4cyclictest3348122-21apt-get08:34:586
330201999322,29cyclictest3471706-21cron12:15:015
330201799320,31cyclictest3360092-21cron08:55:004
330201299320,4cyclictest3304673-21cron07:15:012
330201299320,31cyclictest3363137-21munin-run09:00:012
3302028993127,3cyclictest856-21dbus-daemon11:05:017
330201999310,30cyclictest3389926-21apt-get09:49:595
330201799310,29cyclictest3326451-21cron07:55:014
3302012993127,3cyclictest3471717-21cron12:15:012
330201299310,29cyclictest290-21plymouthd07:49:592
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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