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2026-03-28 - 13:10
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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 rack5slot0.osadl.org (updated Sat Mar 28, 2026 00:44:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2824521330,1sleep20-21swapper/222:49:422
812921210,2sleep2168399cyclictest21:55:012
616321210,2sleep1144650irq/27-eth000:26:401
1354211534,45sleep10-21swapper/119:09:171
93942970,1sleep10-21swapper/120:35:211
7772940,3sleep10-21swapper/122:39:401
243322880,2sleep32023-21nfsd23:37:203
29762870,1sleep02972-21sshd23:23:470
9902850,1sleep10-21swapper/100:07:441
13682840,2sleep11371-21id22:24:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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