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2026-06-30 - 06:35
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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 Tue Jun 30, 2026 00:44:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
16965072232172,20sleep20-21swapper/219:08:132
16965072232172,20sleep20-21swapper/219:08:132
16965712231183,38sleep10-21swapper/119:09:091
16965712231183,38sleep10-21swapper/119:09:091
16965492228166,51sleep60-21swapper/619:08:506
16965492228166,51sleep60-21swapper/619:08:506
16963202220174,36sleep30-21swapper/319:05:333
16963202220174,36sleep30-21swapper/319:05:333
16965472213184,19sleep40-21swapper/419:08:484
16965472213184,19sleep40-21swapper/419:08:484
16966222210182,18sleep50-21swapper/519:09:535
16966222210182,18sleep50-21swapper/519:09:535
16964382208179,19sleep70-21swapper/719:07:147
16964382208179,19sleep70-21swapper/719:07:147
16963812201172,19sleep00-21swapper/019:06:260
16963812201172,19sleep00-21swapper/019:06:260
169683399370,35cyclictest1858993-21/usr/sbin/munin00:00:020
169684999350,30cyclictest1778563-21apt-get21:35:026
169685199340,32cyclictest1864703-21basename00:10:017
169684399340,32cyclictest1873823-21unix_chkpwd00:25:014
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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