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2026-01-07 - 23:37
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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 50 highest latencies:
System rack3slot6.osadl.org (updated Wed Jan 07, 2026 12:45:02)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
294052920,5chrt29298-21/usr/sbin/munin08:05:141
871499896,68cyclictest8797-21apt-get07:10:150
8714998914,60cyclictest0-21swapper/011:25:140
871499886,66cyclictest27568-21apt-get08:00:140
8714998815,60cyclictest0-21swapper/012:30:140
8714998716,57cyclictest0-21swapper/009:00:120
8714998715,61cyclictest0-21swapper/009:40:150
8714998714,68cyclictest19352-31find07:36:270
8714998714,61cyclictest0-21swapper/008:45:110
871499866,69cyclictest18226-21apt-get09:05:120
8714998618,58cyclictest0-21swapper/011:50:140
8714998617,56cyclictest0-21swapper/011:35:100
8714998614,57cyclictest0-21swapper/009:45:100
8714998613,60cyclictest0-21swapper/012:05:120
8714998612,59cyclictest0-21swapper/009:30:120
871499856,65cyclictest6838-21apt-get10:05:160
8714998536,38cyclictest0-21swapper/009:15:140
8714998514,61cyclictest0-21swapper/010:55:140
8714998514,59cyclictest0-21swapper/011:00:130
871499847,63cyclictest28735-21apt-get09:35:150
871499847,61cyclictest29303-21apt-get08:05:110
871499846,64cyclictest12814-21apt-get07:20:140
871499846,62cyclictest10129-21apt-get11:45:140
8714998427,44cyclictest0-21swapper/012:10:130
8714998419,52cyclictest0-21swapper/010:15:130
8714998414,60cyclictest0-21swapper/007:45:110
8714998414,60cyclictest0-21swapper/007:45:100
8714998414,57cyclictest0-21swapper/010:40:120
8714998414,56cyclictest0-21swapper/008:55:140
8714998413,57cyclictest0-21swapper/009:10:150
8714998412,61cyclictest0-21swapper/010:35:130
8714998320,52cyclictest0-21swapper/011:40:220
8714998316,56cyclictest0-21swapper/009:55:130
8714998315,56cyclictest0-21swapper/008:20:140
8714998315,56cyclictest0-21swapper/008:20:130
8714998314,58cyclictest0-21swapper/012:25:120
8714998314,57cyclictest0-21swapper/007:40:140
8714998314,54cyclictest0-21swapper/011:05:130
8714998312,58cyclictest0-21swapper/010:50:140
8714998312,57cyclictest0-21swapper/007:30:150
871499826,60cyclictest13909-21apt-get11:55:260
8714998215,57cyclictest0-21swapper/008:40:160
8714998215,54cyclictest0-21swapper/010:10:120
8714998214,56cyclictest0-21swapper/008:25:230
8714998213,56cyclictest0-21swapper/007:55:230
8718998139,29cyclictest26-21ksoftirqd/111:50:131
871499816,61cyclictest20938-21apt-get12:15:120
8714998115,56cyclictest0-21swapper/012:35:120
8714998115,52cyclictest0-21swapper/008:50:120
8714998115,52cyclictest0-21swapper/008:50:110
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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