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2026-01-09 - 13:43
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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
Characteristics of the 10 highest latencies:
System rack2slot0.osadl.org (updated Fri Jan 09, 2026 12:43:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
257922940,0sleep125791-21bash09:29:201
56232780,0sleep00-21swapper/009:14:520
5052750,0sleep0452-21sshd11:16:200
63192610,0sleep20-21swapper/209:30:482
302642580,0sleep20-21swapper/210:43:232
163892550,1sleep016388-21bash12:17:570
4612540,0sleep30-21swapper/311:19:083
147972530,2sleep32446599cyclictest09:42:083
205132520,1sleep120509-21bash10:10:251
138842520,0sleep00-21swapper/009:55:510
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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