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2025-12-07 - 17:20
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Data to construct the above plot have been generated using the RT test utility cyclictest.

Total number of samples: 50 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 rack5slot7.osadl.org (updated Sun Dec 07, 2025 12:44:11)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
6857224290,11sleep0303-1kworker/u3:105:35:230
81949911331,35cyclictest27283-21apt-get09:10:320
81949910529,51cyclictest1300-21apt-get07:50:360
81949910518,63cyclictest9312-21apt-get08:15:340
81949910431,38cyclictest16699-21ssh08:36:540
81949910317,23cyclictest6651-21memory08:06:250
81949910232,52cyclictest0-21swapper11:07:120
81949910218,41cyclictest11551-21ntp_states08:21:400
81949910118,61cyclictest7792-21apt-get09:50:310
81949910117,63cyclictest3203-21df_inode09:36:060
81949910115,63cyclictest24069-21apt-get09:00:290
81949910115,63cyclictest14537-21df_inode08:31:030
81949910114,45cyclictest1220-21apt-get09:30:330
81949910032,43cyclictest30485-21apt-get09:20:340
81949910031,43cyclictest28913-21apt-get09:15:330
81949910024,34cyclictest22447-21apt-get08:55:310
81949910016,44cyclictest21491-21memory10:31:290
81949910014,63cyclictest18412-21vmstat08:42:000
81949910012,67cyclictest20336-21ssh10:27:350
81949910012,66cyclictest32423-21ssh11:03:560
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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