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2025-11-05 - 09:11
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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 rackeslot3.osadl.org (updated Wed Nov 05, 2025 00:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
394360399680,66cyclictest0-21swapper/120:38:041
3943603996561,2cyclictest0-21swapper/100:20:421
3943603996537,27cyclictest3942169-21kworker/1:219:15:151
3943603996461,2cyclictest0-21swapper/121:21:081
3943603996360,2cyclictest0-21swapper/120:30:251
3943603996342,19cyclictest1711038-1kworker/1:1H00:00:011
394360399630,62cyclictest0-21swapper/123:31:391
3943603996158,2cyclictest0-21swapper/120:06:321
3943603996144,16cyclictest1711038-1kworker/1:1H21:40:191
3943603996137,22cyclictest1711038-1kworker/1:1H21:10:011
394360399610,60cyclictest0-21swapper/122:39:071
3943603996041,18cyclictest1711038-1kworker/1:1H23:50:011
394360399600,59cyclictest0-21swapper/100:36:351
3943603995956,2cyclictest0-21swapper/123:07:051
3943603995855,2cyclictest0-21swapper/122:55:221
3943603995842,15cyclictest3965135-21kworker/1:020:15:191
3943603995842,15cyclictest3965135-21kworker/1:020:15:181
3943603995841,16cyclictest1711038-1kworker/1:1H22:20:001
3943603995840,17cyclictest4043558-21kworker/1:200:30:141
3943603995839,17cyclictest4041389-21kworker/1:000:10:161
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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