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2025-12-21 - 15:12
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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 rackeslot5.osadl.org (updated Sun Dec 21, 2025 00:44:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2047399300,29cyclictest7510-21basename00:25:012
2047399300,29cyclictest23042-21apt-get19:15:142
2047399300,29cyclictest13679-21cron20:05:022
20472993028,1cyclictest0-21swapper/123:05:001
20475992927,1cyclictest16019-21perf20:10:023
20473992927,1cyclictest6502-21apt-get23:15:122
2047399290,28cyclictest2809-21apt-get20:50:122
2047399290,28cyclictest0-21swapper/221:40:012
2047399290,1cyclictest17968-21apt-get22:30:122
2047399290,1cyclictest0-21swapper/200:05:012
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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