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2026-05-14 - 11:25
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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 Thu May 14, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1333999312,914cyclictest22993-21wc23:25:011
133299788726,55cyclictest0-21swapper/023:25:020
8682670649,15sleep10-21swapper/119:06:431
133299521423,91cyclictest0-21swapper/019:10:140
1333994714,449cyclictest0-21swapper/123:31:501
133399428359,24cyclictest1772-21df_abs19:10:151
133299359298,54cyclictest0-21swapper/023:31:510
9772267242,17sleep00-21swapper/019:07:420
13339911416,63cyclictest0-21swapper/123:07:591
147372890,4sleep0221rcuc/019:45:190
1333998911,62cyclictest0-21swapper/120:22:011
1333998811,59cyclictest0-21swapper/121:32:001
1333998614,60cyclictest0-21swapper/100:00:581
1333998111,56cyclictest0-21swapper/100:09:581
228699800,4rtkit-daemon2285-21rtkit-daemon22:35:151
1333998014,49cyclictest0-21swapper/100:19:581
228699790,4rtkit-daemon2285-21rtkit-daemon21:15:090
1333997914,51cyclictest0-21swapper/122:56:591
1333997824,40cyclictest0-21swapper/122:21:591
228699760,4rtkit-daemon2285-21rtkit-daemon22:26:200
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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