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2026-03-07 - 00:14
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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 Fri Mar 06, 2026 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
201119919161847,62cyclictest0-21swapper/008:00:200
197522758735,15sleep10-21swapper/107:06:451
200002464441,16sleep00-21swapper/007:09:110
2011199459361,71cyclictest0-21swapper/007:10:200
2011299376303,58cyclictest6662-21strings08:00:211
2011299364259,72cyclictest20926-21strings07:10:211
2286991490,5rtkit-daemon2285-21rtkit-daemon09:29:050
2286991160,4rtkit-daemon2285-21rtkit-daemon09:31:001
2286991160,4rtkit-daemon2285-21rtkit-daemon09:30:591
20112999315,62cyclictest0-21swapper/109:05:581
228699860,4rtkit-daemon2285-21rtkit-daemon07:35:190
20111998526,51cyclictest0-21swapper/012:37:000
2011199847,11cyclictest7168-21ssh09:24:590
20111998133,41cyclictest0-21swapper/010:52:590
20111997921,46cyclictest0-21swapper/008:07:590
228699780,4rtkit-daemon2285-21rtkit-daemon10:55:270
228699780,4rtkit-daemon2285-21rtkit-daemon10:52:011
228699770,7rtkit-daemon0-21swapper/012:24:380
228699770,7rtkit-daemon0-21swapper/012:24:370
228699770,4rtkit-daemon2285-21rtkit-daemon09:27:441
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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