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2026-06-15 - 01:27
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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 14, 2026 12:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
24727082960,1sleep20-21swapper/210:50:232
25172932450,0sleep12517296-21cut11:20:231
2174050992818,3cyclictest1237-21mta-sts-daemon11:35:271
23317262270,2sleep30-21swapper/309:15:213
2174050992724,2cyclictest660-21dbus-daemon12:35:001
2174050992617,2cyclictest67250irq/126-eno111:10:191
2174050992522,2cyclictest2528846-21dump-pmu-power11:30:011
2174049992518,6cyclictest2543795-21sh11:40:010
2174050992218,2cyclictest693-21systemd-logind10:00:021
2174050992217,3cyclictest2574719-21kthreadcore12:00:241
2174050992212,2cyclictest67250irq/126-eno109:30:161
2174049992217,3cyclictest0-21swapper/009:05:020
217404999221,6cyclictest2219801-21apt-get07:45:170
2174050992118,2cyclictest2463194-21grep10:45:031
2174049992115,5cyclictest1247-21mta-sts-daemon09:54:460
2174049992115,2cyclictest67250irq/126-eno112:15:230
2174051992017,1cyclictest0-21swapper/210:19:412
2174050992010,3cyclictest0-21swapper/111:43:381
2174049992014,1cyclictest22769612cat08:30:250
217404999200,18cyclictest2381899-21awk09:50:000
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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