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2025-11-24 - 08:46
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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 Nov 24, 2025 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
124265921110,2sleep30-21swapper/321:05:303
15334022560,0sleep11533403-21cat23:55:011
1097559992515,5cyclictest0-21swapper/022:50:270
1097559992421,2cyclictest1700-21systemd-logind22:25:010
1097560992320,2cyclictest1652-1atopacctd21:30:021
1097559992320,2cyclictest1368338-21apt-key22:20:010
1097559992218,3cyclictest1702-21in:imuxsock21:20:000
1097559992218,3cyclictest1702-21in:imuxsock21:20:000
1097559992215,6cyclictest1513384-21wc23:40:430
1097559992214,7cyclictest0-21swapper/021:40:010
1097560992114,3cyclictest1572690-21kthreadcore00:15:351
1097560992114,3cyclictest1372538-21kthreadcore22:20:321
1097560992114,3cyclictest1317946-21kthreadcore21:50:301
1097560992112,3cyclictest1562887-21kthreadcore00:10:341
1097559992110,6cyclictest0-21swapper/000:40:020
1097560992017,2cyclictest1197577-21systemd-run20:30:001
1097560992017,2cyclictest0-21swapper/121:25:001
1097560992014,2cyclictest170550irq/121-eno122:05:001
1097560992010,6cyclictest1545779-21kthreadcore00:00:301
302487291190,2phc2sys0-21swapper/319:25:253
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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