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2026-06-01 - 09:22
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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
Characteristics of the 20 highest latencies:
System rackeslot2.osadl.org (updated Mon Jun 01, 2026 00:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
97838521600,2sleep30-21swapper/319:44:463
119557921100,2sleep00-21swapper/022:20:010
122143121000,2sleep30-21swapper/322:39:483
9458112740,2sleep20-21swapper/219:15:032
13642932330,1sleep00-21swapper/000:19:420
13076112280,2sleep10-21swapper/123:34:541
937068992622,3cyclictest3824565-21in:imuxsock20:20:000
937070992522,2cyclictest1008540-21grep20:05:021
937070992421,2cyclictest1290-21dbus-daemon23:10:011
937070992421,2cyclictest1290-21dbus-daemon23:10:011
937068992421,2cyclictest0-21swapper/021:00:010
937068992418,1cyclictest134050irq/121-eno119:29:440
937068992317,2cyclictest134050irq/121-eno122:59:430
937070992219,2cyclictest1127907-21/usr/sbin/munin21:35:011
937070992219,2cyclictest0-21swapper/100:40:001
937070992218,2cyclictest0-21swapper/123:05:021
937070992218,2cyclictest0-21swapper/121:15:021
937068992215,6cyclictest3851704-21mta-sts-daemon22:34:560
937071992118,1cyclictest0-21swapper/221:00:002
937070992118,2cyclictest3880722-21gmain21:10:021
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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