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2026-06-07 - 15:32
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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 Sun Jun 07, 2026 12:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
179745521970,2sleep30-21swapper/309:00:343
20197292710,2sleep30-21swapper/311:35:323
18408262680,1sleep11840825-21ssh09:31:101
1656970993222,6cyclictest2026085-21systemd-run11:40:030
165697099238,6cyclictest0-21swapper/009:55:330
1656970992320,2cyclictest1908385-21dump-pmu-power10:20:000
1656970992213,5cyclictest1246-21mta-sts-daemon12:12:510
1656970992212,9cyclictest1837986-21kthreadcore09:30:340
1656970992211,6cyclictest0-21swapper/009:30:010
3153791216,1phc2sys0-21swapper/311:45:013
1656971992118,2cyclictest660-21dbus-daemon09:20:011
1656971992118,2cyclictest2063096-21/usr/sbin/munin12:05:031
1656970992110,7cyclictest0-21swapper/010:05:370
492398200,3rtkit-daemon1247-21mta-sts-daemon11:05:410
1656971992017,2cyclictest1663249-21df07:15:021
1656970992015,4cyclictest1761728-21pmu-power08:30:360
1656970992011,5cyclictest1246-21mta-sts-daemon12:40:030
1656970992010,5cyclictest0-21swapper/011:30:010
492398190,3rtkit-daemon675-21mta-sts-daemon10:50:310
492398190,3rtkit-daemon1237-21mta-sts-daemon08:28:370
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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