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2025-10-27 - 17:36
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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 Mon Oct 27, 2025 12:44:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
191121470,3sleep2407599cyclictest09:40:152
1222121350,2sleep212223-21bash10:34:262
1937421290,1sleep10-21swapper/110:21:231
1080421270,3sleep3407699cyclictest12:18:363
2425721250,2sleep224252-21sshd09:19:482
2576121240,2sleep1407499cyclictest10:57:091
1821621150,1sleep11848-21nfsd12:12:391
1570221150,2sleep11848-21nfsd12:32:321
1379621050,1sleep1407499cyclictest10:30:571
3463210034,54sleep10-21swapper/107:05:401
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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