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2026-07-18 - 20:37
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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
Characteristics of the 20 highest latencies:
System rackcslot6.osadl.org (updated Sat Jul 18, 2026 12:46:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
102995199380379,1cyclictest1096912-21kworker/5:109:58:025
102995199380379,1cyclictest1054801-21kworker/5:207:55:025
102995199379378,1cyclictest1172045-21kworker/5:211:50:025
102995199379378,1cyclictest1096912-21kworker/5:109:32:025
102995199379378,1cyclictest1054801-21kworker/5:208:40:025
102995199379378,1cyclictest0-21swapper/511:55:025
102995199379378,1cyclictest0-21swapper/511:20:025
102995199378377,1cyclictest1336907-21kworker/5:107:35:035
102995199378377,1cyclictest1336907-21kworker/5:107:35:025
102995199378377,1cyclictest1172045-21kworker/5:212:05:025
102995199378377,1cyclictest1096912-21kworker/5:111:01:025
102995199378377,1cyclictest1096912-21kworker/5:109:10:025
102995199378377,1cyclictest0-21swapper/510:45:025
102995199377376,1cyclictest1096912-21kworker/5:109:41:025
102995199377376,1cyclictest1096912-21kworker/5:109:00:025
102995199377376,1cyclictest1096912-21kworker/5:109:00:025
102995199377376,1cyclictest0-21swapper/511:30:025
102995199377376,1cyclictest0-21swapper/511:15:025
102995199377376,1cyclictest0-21swapper/510:56:025
102995199377376,1cyclictest0-21swapper/510:15:025
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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