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2026-07-01 - 07:11
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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 rack8slot4.osadl.org (updated Wed Jul 01, 2026 00:44:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
5854342234171,19sleep70-21swapper/719:07:037
5853652234172,19sleep30-21swapper/319:06:023
5855112214185,20sleep10-21swapper/119:08:101
5854222213184,19sleep60-21swapper/619:06:546
5854582209181,18sleep40-21swapper/419:07:244
5856162208179,19sleep50-21swapper/519:09:435
5853822204175,19sleep20-21swapper/219:06:182
5853112203174,19sleep00-21swapper/019:05:190
58588399550,54cyclictest0-21swapper/119:30:011
58588099533,1cyclictest1-21systemd19:30:010
5990432490,1sleep1341rcuc/119:35:011
58588899330,32cyclictest737989-21cron23:45:013
58588499330,32cyclictest279850-21systemd-journal21:20:012
58589799320,31cyclictest732472-21sshd-session23:35:017
58589699320,31cyclictest721294-21cron23:15:016
585893993227,4cyclictest615510-21appstreamcli20:05:025
58589399320,31cyclictest657350-21sshd-session21:20:015
58588099320,31cyclictest710580-21sed22:55:010
58588099320,31cyclictest635006-21sshd-auth20:40:010
585897993129,1cyclictest17850irq/4-ttyS020:45:027
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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