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2026-09-14 - 01:30
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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 rack3slot6.osadl.org (updated Sun Sep 13, 2026 12:45:03)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3125728831,43sleep00-21swapper/007:05:140
558998248,24cyclictest26497-21apt-get08:20:120
564998124,51cyclictest0-21swapper/107:25:231
558997844,25cyclictest19425-21apt-get08:00:160
558997842,30cyclictest0-21swapper/009:45:160
558997842,30cyclictest0-21swapper/009:45:160
558997841,24cyclictest0-21swapper/008:35:130
558997740,23cyclictest0-21swapper/010:10:180
564997630,41cyclictest100712sleep112:05:361
558997640,29cyclictest0-21swapper/009:40:130
558997639,29cyclictest0-21swapper/007:50:140
558997543,24cyclictest0-21swapper/010:25:140
558997542,25cyclictest0-21swapper/010:30:120
558997540,23cyclictest0-21swapper/011:15:130
564997431,10cyclictest4694-21diskstats10:20:221
558997443,23cyclictest0-21swapper/011:05:120
558997441,20cyclictest0-21swapper/012:35:240
558997439,29cyclictest0-21swapper/007:20:140
558997439,22cyclictest0-21swapper/008:30:140
558997438,30cyclictest0-21swapper/009:55:150
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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