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2026-04-23 - 09:02
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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 Thu Apr 23, 2026 00:43:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2050085996642,22cyclictest4118604-1kworker/1:1H19:49:591
205008599660,64cyclictest0-21swapper/119:40:171
2050085996444,18cyclictest4118604-1kworker/1:1H23:45:141
2050096996240,20cyclictest3819399-1kworker/2:0H19:55:062
2050085996043,15cyclictest4118604-1kworker/1:1H20:30:151
2050085995943,15cyclictest2224713-21kworker/1:000:05:151
2050085995943,15cyclictest2061247-21kworker/1:119:50:161
2050085995942,16cyclictest2224713-21kworker/1:000:00:181
2050085995842,15cyclictest2238000-21kworker/1:000:16:251
2050085995842,15cyclictest2079417-21kworker/1:320:46:141
2050085995842,14cyclictest4118604-1kworker/1:1H22:30:141
2050085995842,14cyclictest2242312-21kworker/1:200:23:451
2050085995841,16cyclictest2200553-21kworker/1:023:35:151
2050085995841,16cyclictest2136889-21kworker/1:222:15:141
2050085995841,15cyclictest2229407-21kworker/1:100:13:201
2050085995841,15cyclictest2087990-21kworker/1:021:10:151
2050085995840,16cyclictest4118604-1kworker/1:1H23:10:011
2050085995742,14cyclictest4118604-1kworker/1:1H20:01:401
2050085995742,14cyclictest2110531-21kworker/1:021:46:421
2050085995740,16cyclictest2220452-21kworker/1:300:00:021
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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