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2025-12-13 - 11:07
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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 10 highest latencies:
System rack0slot7.osadl.org (updated Sat Dec 13, 2025 00:46:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
13478299327326,1cyclictest0-21swapper/1219:12:014
13477299319318,1cyclictest0-21swapper/221:12:148
13477299318318,0cyclictest0-21swapper/221:07:198
13477299318317,0cyclictest0-21swapper/219:12:378
13477699288283,4cyclictest4696-21Xorg21:06:0512
13478099287282,4cyclictest4696-21Xorg21:06:252
13478099287282,4cyclictest13835-21Renderer21:12:562
134770992870,283cyclictest0-21swapper/021:07:300
134781992860,285cyclictest0-21swapper/1121:12:453
13477399286282,3cyclictest4696-21Xorg21:13:019
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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