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2025-12-17 - 09:20
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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
Characteristics of the 20 highest latencies:
System rackcslot4.osadl.org (updated Wed Dec 17, 2025 00:44:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
14417612274194,27sleep10-21swapper/119:05:581
14420022260185,59sleep00-21swapper/019:08:350
179699550,3rtkit-daemon1795-21rtkit-daemon23:38:271
179699540,4rtkit-daemon1795-21rtkit-daemon22:15:200
179699520,4rtkit-daemon1795-21rtkit-daemon22:09:050
179699510,3rtkit-daemon1795-21rtkit-daemon00:35:250
14578502510,7sleep01457844-21grep19:45:190
179699490,4rtkit-daemon1795-21rtkit-daemon21:47:311
179699490,4rtkit-daemon1795-21rtkit-daemon21:10:571
179699460,9rtkit-daemon1795-21rtkit-daemon21:32:480
15300012460,2sleep00-21swapper/022:50:140
179699440,2rtkit-daemon1795-21rtkit-daemon23:10:281
144224399416,12cyclictest1454921-21appstreamcli19:40:031
179699400,3rtkit-daemon1795-21rtkit-daemon22:51:551
179699400,3rtkit-daemon0-21swapper/119:10:241
144224399407,11cyclictest1501991-21sed21:40:011
179699390,11rtkit-daemon1478984-21grep20:40:200
179699370,3rtkit-daemon0-21swapper/021:41:300
144224399370,21cyclictest1478661-21apt-get20:40:161
179699360,3rtkit-daemon1795-21rtkit-daemon21:00:150
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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