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2026-03-17 - 16:29
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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 rackeslot5.osadl.org (updated Tue Mar 17, 2026 12:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1028799300,29cyclictest27122-21cron12:20:013
10286993028,1cyclictest0-21swapper/207:30:022
1028499300,2cyclictest13774-21cron09:35:000
1028499300,29cyclictest27131-21cron12:20:000
10287992927,1cyclictest18182-21cron08:34:593
10287992927,1cyclictest1696-21cron12:35:013
1028799290,28cyclictest14056-21apt-get09:35:123
1028699291,0cyclictest29577-21apt-get07:50:102
1028699290,29cyclictest0-21swapper/209:25:122
1028699290,28cyclictest6110-21apt-get11:35:112
1028699290,28cyclictest0-21swapper/209:45:012
1028699290,28cyclictest0-21swapper/208:50:092
1028699290,28cyclictest0-21swapper/208:10:142
10285992928,1cyclictest26007-21apt-get10:00:101
1028599290,28cyclictest28640-21perf11:15:011
1028599290,28cyclictest0-21swapper/112:10:131
1028599290,28cyclictest0-21swapper/110:50:111
1028599290,28cyclictest0-21swapper/110:35:011
10284992928,1cyclictest18474-21apt-get08:35:110
10284992927,1cyclictest1706-21cron12:35:010
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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