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2026-06-07 - 10:04
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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 rack1slot8.osadl.org (updated Sun Jun 07, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3191399931853,67cyclictest32729-21grep19:10:210
3191499879833,30cyclictest0-21swapper/119:10:201
316192769747,15sleep00-21swapper/019:07:280
228699910,13rtkit-daemon0-21swapper/023:17:140
3191499785,58cyclictest0-21swapper/100:00:591
228699780,3rtkit-daemon2285-21rtkit-daemon00:09:051
3191499765,49cyclictest0-21swapper/120:02:591
228699740,5rtkit-daemon2285-21rtkit-daemon21:05:151
228699740,5rtkit-daemon2285-21rtkit-daemon00:35:211
3142927332,28sleep10-21swapper/119:05:341
3191499715,58cyclictest0-21swapper/100:27:581
3191499714,53cyclictest0-21swapper/119:50:001
3191499685,54cyclictest0-21swapper/122:54:591
31913996814,33cyclictest0-21swapper/022:01:570
228699670,4rtkit-daemon1189-21snmpd20:29:351
31913996514,44cyclictest0-21swapper/022:56:090
31913996232,25cyclictest0-21swapper/000:20:240
31913996229,28cyclictest0-21swapper/023:04:370
228699600,19rtkit-daemon2285-21rtkit-daemon22:12:070
3191499596,35cyclictest0-21swapper/122:56:591
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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