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2025-07-20 - 04:47
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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 rackaslot8.osadl.org (updated Sun Jul 20, 2025 00:44:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
212022288254,21sleep20-21swapper/219:08:582
209922263230,21sleep00-21swapper/019:06:290
209592261230,19sleep30-21swapper/319:06:053
210002258218,27sleep10-21swapper/119:06:351
282132750,0sleep30-21swapper/322:15:183
321372680,0sleep20-21swapper/200:27:542
36622620,0sleep20-21swapper/223:12:552
261812220,0sleep00-21swapper/000:21:480
221402150,1sleep222144-21sed22:10:152
169452130,0sleep00-21swapper/022:05:220
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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