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2025-12-08 - 03:41
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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 Mon Dec 08, 2025 00:45:03)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
465529620,31sleep10-21swapper/119:07:521
384729539,40sleep00-21swapper/019:05:220
5040999012,66cyclictest0-21swapper/123:20:141
503599905,75cyclictest24434-21apt-get23:05:210
503599905,73cyclictest8567-21apt-get20:50:170
5040998912,61cyclictest0-21swapper/123:05:221
504099877,65cyclictest31458-21apt-get23:25:141
5040998513,61cyclictest0-21swapper/100:05:141
5040998511,62cyclictest0-21swapper/120:50:161
503599857,60cyclictest0-21swapper/023:25:150
5040998412,62cyclictest0-21swapper/123:15:141
5040998211,61cyclictest0-21swapper/119:15:141
5040998211,55cyclictest0-21swapper/121:20:151
5035998225,46cyclictest9-1kworker/0:1H19:10:160
5040998113,61cyclictest0-21swapper/121:25:141
5040998111,62cyclictest0-21swapper/120:25:151
5040998111,62cyclictest0-21swapper/120:25:141
5040998111,60cyclictest0-21swapper/119:20:161
503599817,59cyclictest13075-21apt-get00:05:130
503599815,60cyclictest9143-21apt-get19:20:160
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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