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2026-09-05 - 22:44
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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 Sat Sep 05, 2026 12:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
234289421610,2sleep30-21swapper/309:49:483
25055132970,2sleep20-21swapper/211:20:062
24389442310,2sleep20-21swapper/210:44:432
2107925992912,8cyclictest0-21swapper/010:26:090
210792599271,12cyclictest2566845-21diskmemload11:54:550
210792599271,11cyclictest1-21systemd11:45:020
210792599261,20cyclictest2523483-21seq11:30:510
210792599252,13cyclictest2557851-21unixbench-2d11:49:490
210792599251,14cyclictest1-21systemd12:35:010
210792599251,13cyclictest2374042-21runrttasks10:06:250
210792599251,13cyclictest0-21swapper/012:27:220
22132912410,3phc2sys0-21swapper/311:24:023
2107926992417,2cyclictest82050irq/121-eno109:34:201
210792599245,14cyclictest1188-21runrttasks09:56:320
210792599241,13cyclictest2601932-21runrttasks12:14:570
210792599241,13cyclictest2461740-21runrttasks10:55:320
210792599241,13cyclictest2349021-21sh09:54:270
210792599241,13cyclictest2295609-21runrttasks09:23:280
210792599241,13cyclictest2187045-21runrttasks08:09:210
210792599241,13cyclictest1188-21runrttasks10:01:210
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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