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2026-05-25 - 09:23
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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 rackbslot7.osadl.org (updated Mon May 25, 2026 00:44:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2289721389,96sleep122950-21grep18:56:161
23742991212,88cyclictest22163-21taskset00:20:550
237749911768,42cyclictest9478-21sh23:06:022
2347621176,16sleep20-21swapper/219:00:162
23742991133,74cyclictest418-21fschecks_time19:25:520
237429911242,49cyclictest352-21runrttasks21:04:080
237429911242,49cyclictest352-21runrttasks21:04:080
237429911118,52cyclictest0-21swapper/022:40:470
237429911118,52cyclictest0-21swapper/022:40:470
23742991093,75cyclictest14979-21ps21:26:230
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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