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2026-05-26 - 23:10
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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 Tue May 26, 2026 12:44:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
192199912195,15cyclictest14-21ksoftirqd/011:00:130
192249911612,57cyclictest0-21swapper/112:30:221
192199911265,20cyclictest14-21ksoftirqd/008:20:130
192199910574,18cyclictest14-21ksoftirqd/007:35:120
192199910312,79cyclictest0-21swapper/008:00:120
192199910271,19cyclictest14-21ksoftirqd/008:25:120
192199910168,19cyclictest14-21ksoftirqd/012:05:150
192199910112,75cyclictest0-21swapper/010:55:100
19219999812,31cyclictest0-21swapper/012:10:130
19219999763,22cyclictest14-21ksoftirqd/011:10:240
19219999762,23cyclictest14-21ksoftirqd/010:05:120
19219999614,30cyclictest0-21swapper/009:50:100
19219999611,28cyclictest0-21swapper/012:25:090
19219999552,31cyclictest14-21ksoftirqd/007:10:110
19219999510,31cyclictest0-21swapper/007:15:120
19219999411,70cyclictest0-21swapper/008:15:110
19219999356,26cyclictest14-21ksoftirqd/010:45:130
19219999353,29cyclictest14-21ksoftirqd/010:20:130
19219999255,24cyclictest0-21swapper/010:10:110
19219999246,33cyclictest14-21ksoftirqd/008:30:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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