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2026-05-09 - 16:00
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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 rack3slot6.osadl.org (updated Sat May 09, 2026 12:45:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2487321080,8chrt0-21swapper/109:10:161
13482210527,65sleep10-21swapper/107:08:511
1345629614,71sleep00-21swapper/007:08:340
13768998812,63cyclictest0-21swapper/010:30:110
13768998710,60cyclictest0-21swapper/007:40:040
1376899857,67cyclictest32073-21apt-get08:00:140
1376899856,63cyclictest10460-21apt-get08:30:150
1377599847,67cyclictest0-21swapper/108:30:151
13768998411,58cyclictest0-21swapper/011:10:120
13768998411,58cyclictest0-21swapper/010:40:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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