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2026-09-07 - 13:25
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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 10 highest latencies:
System rackdslot1.osadl.org (updated Mon Sep 07, 2026 00:45:37)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1338521700,6sleep21332999cyclictest22:35:272
1630421460,4sleep31333099cyclictest22:44:233
244922770,6sleep30-21swapper/300:10:203
13327996910,16cyclictest0-21swapper/020:00:290
13327996814,11cyclictest1317-21runrttasks00:14:300
13327996813,10cyclictest1317-21runrttasks21:43:060
13327996710,11cyclictest1479-21ntpq23:20:230
13327996613,17cyclictest26614-21sed23:05:200
134491650,24ptp4l25-21ksoftirqd/122:54:261
13327996512,11cyclictest4543-21grep00:35:220
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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