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2024-05-17 - 16:38
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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 rack1slot8.osadl.org (updated Fri May 17, 2024 12:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3297995094,486cyclictest0-21swapper/107:10:021
329799453398,43cyclictest0-21swapper/107:19:461
329699413342,62cyclictest0-21swapper/007:10:010
29462390369,14sleep10-21swapper/107:06:571
2220421310,4sleep122203-21ssh09:22:271
32979910712,59cyclictest0-21swapper/108:24:001
2277991070,4rtkit-daemon2276-21rtkit-daemon11:35:131
227799930,18rtkit-daemon2276-21rtkit-daemon10:55:130
87012910,3sleep18702-21ssh09:54:591
227799830,4rtkit-daemon2276-21rtkit-daemon11:20:180
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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