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2026-06-20 - 19:42
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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 Sat Jun 20, 2026 12:44:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1073599340,21cyclictest0-21swapper/212:20:202
1073399310,2cyclictest307-21systemd-journal07:45:000
1073599300,29cyclictest5781-21cron09:14:592
1073499300,2cyclictest20002-21cron07:30:011
1073499300,29cyclictest23159-21cron12:10:011
1073499300,29cyclictest18814-21apt-get12:00:121
10733993028,1cyclictest621-21dbus-daemon09:30:000
10736992927,1cyclictest9196-21apt-get11:40:143
1073699290,28cyclictest10985-21apt-get07:10:123
1073699290,28cyclictest0-21swapper/312:10:123
1073699290,28cyclictest0-21swapper/309:45:103
1073599290,28cyclictest0-21swapper/208:45:122
10734992927,1cyclictest29724-21awk07:50:001
10734992927,1cyclictest28542-21perf08:55:001
10734992927,1cyclictest26216-21awk08:50:011
1073499290,28cyclictest0-21swapper/110:30:111
1073499290,1cyclictest646-21polkitd12:40:011
1073399290,28cyclictest0-21swapper/007:20:120
10736992828,0cyclictest0-21swapper/310:15:123
10736992826,1cyclictest0-21swapper/310:35:023
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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