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2026-06-24 - 00:58
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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
Compare latency of primary with shadow system
Characteristics of the 20 highest latencies:
System rackeslot3.osadl.org (updated Tue Jun 23, 2026 12:43:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
4179417997349,23cyclictest165695-21kworker/1:311:55:121
417941799660,2cyclictest0-21swapper/108:09:071
4179417996334,27cyclictest39089-21kworker/1:009:35:171
4179417996139,21cyclictest153547-21kworker/1:211:40:131
4179417996057,1cyclictest23425-21diskmemload11:25:091
4179417996037,20cyclictest1290408-1kworker/1:0H09:20:001
4179417995943,15cyclictest68056-21kworker/1:210:00:141
4179417995943,14cyclictest1290408-1kworker/1:0H08:33:391
4179417995942,16cyclictest153547-21kworker/1:211:35:141
4179417995941,17cyclictest7679-21kworker/1:108:20:141
4179417995941,17cyclictest68056-21kworker/1:210:20:141
4179417995843,14cyclictest4186113-21kworker/1:107:30:141
4179417995843,14cyclictest185720-21kworker/1:112:10:141
4179417995843,14cyclictest132696-21kworker/1:211:14:391
4179417995843,14cyclictest103103-21kworker/1:010:50:011
4179417995842,15cyclictest58500-21kworker/1:109:50:131
4179417995842,15cyclictest4186113-21kworker/1:107:40:161
4179417995842,15cyclictest4186113-21kworker/1:107:40:151
4179417995842,15cyclictest153547-21kworker/1:211:50:141
4179417995841,16cyclictest77704-21kworker/1:010:10:171
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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