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2025-05-03 - 01:44
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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 20 highest latencies:
System rack1slot8.osadl.org (updated Sat May 03, 2025 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2104499854775,50cyclictest0-21swapper/019:13:010
2104599764686,47cyclictest0-21swapper/119:13:011
21044999947,47cyclictest0-21swapper/000:13:580
21045998723,45cyclictest0-21swapper/119:23:591
21044998536,43cyclictest0-21swapper/020:24:590
1958628531,28sleep10-21swapper/119:05:151
216899840,4rtkit-daemon2167-21rtkit-daemon22:05:451
21044998412,65cyclictest0-21swapper/000:02:580
216899820,4rtkit-daemon2167-21rtkit-daemon22:12:241
216899810,4rtkit-daemon2167-21rtkit-daemon23:28:421
21044998141,31cyclictest0-21swapper/000:28:000
216899800,5rtkit-daemon2167-21rtkit-daemon21:10:371
2104599805,52cyclictest0-21swapper/100:11:581
216899790,5rtkit-daemon2167-21rtkit-daemon00:22:121
216899780,5rtkit-daemon2167-21rtkit-daemon23:52:461
216899780,4rtkit-daemon2167-21rtkit-daemon22:57:461
216899780,20rtkit-daemon0-21swapper/021:35:341
21044997841,30cyclictest0-21swapper/019:50:230
216899760,4rtkit-daemon2167-21rtkit-daemon23:16:561
216899760,4rtkit-daemon2167-21rtkit-daemon22:24:341
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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