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2026-04-18 - 20:33
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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 Sat Apr 18, 2026 12:45:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
159179911484,17cyclictest14-21ksoftirqd/008:05:160
159179910675,19cyclictest14-21ksoftirqd/010:45:130
159219910451,32cyclictest26-21ksoftirqd/111:30:091
159179910473,17cyclictest0-21swapper/011:05:140
159179910374,19cyclictest14-21ksoftirqd/012:05:130
159179910371,18cyclictest14-21ksoftirqd/011:50:120
159179910312,75cyclictest0-21swapper/008:40:120
15917999965,21cyclictest14-21ksoftirqd/012:10:140
15917999911,72cyclictest0-21swapper/009:05:160
15917999862,21cyclictest0-21swapper/007:15:140
15917999811,71cyclictest0-21swapper/008:15:140
15917999766,19cyclictest14-21ksoftirqd/008:50:150
15917999421,61cyclictest15911-21cyclictest08:20:120
15917999312,31cyclictest0-21swapper/007:20:150
15917999118,39cyclictest21445-21aten2.4_r3power08:55:170
15917998850,25cyclictest14-21ksoftirqd/009:20:130
15917998748,25cyclictest14-21ksoftirqd/007:25:140
15917998746,29cyclictest14-21ksoftirqd/011:55:130
15917998746,29cyclictest14-21ksoftirqd/011:55:130
15917998717,53cyclictest13825-21apt-get08:35:010
15917998628,46cyclictest0-21swapper/010:30:120
15917998627,47cyclictest0-21swapper/011:45:130
15917998552,22cyclictest14-21ksoftirqd/012:15:120
15917998528,46cyclictest0-21swapper/010:10:110
15917998521,39cyclictest14298-21chrt08:35:120
15917998448,23cyclictest0-21swapper/011:10:140
15917998442,29cyclictest14-21ksoftirqd/011:25:140
15917998419,48cyclictest20186-21runrttasks10:23:520
15917998346,26cyclictest14-21ksoftirqd/008:00:140
15917998342,29cyclictest14-21ksoftirqd/009:45:220
15917998328,26cyclictest562-21runrttasks07:35:210
15917998326,44cyclictest0-21swapper/011:35:130
15917998316,55cyclictest0-21swapper/009:00:130
15917998316,53cyclictest0-21swapper/007:45:140
15917998315,36cyclictest30678-21vmstat10:50:370
15917998311,59cyclictest0-21swapper/012:20:120
15917998247,23cyclictest14-21ksoftirqd/009:15:130
15917998245,25cyclictest14-21ksoftirqd/012:30:120
15917998240,29cyclictest14-21ksoftirqd/007:50:150
15917998227,43cyclictest0-21swapper/011:00:110
15917998227,43cyclictest0-21swapper/011:00:110
15917998218,51cyclictest0-21swapper/009:35:130
15917998217,52cyclictest0-21swapper/007:10:120
15917998211,57cyclictest0-21swapper/012:25:130
15917998139,29cyclictest14-21ksoftirqd/010:55:140
15917998121,47cyclictest0-21swapper/009:30:140
15917998119,50cyclictest0-21swapper/010:40:140
15917998112,56cyclictest0-21swapper/009:40:110
15917998111,51cyclictest0-21swapper/008:45:340
15917998110,25cyclictest0-21swapper/009:50:150
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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