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2026-07-28 - 03:15
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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 rackeslot3.osadl.org (updated Mon Jul 27, 2026 12:43:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1232922997245,26cyclictest1241010-21kworker/1:207:35:161
1232922997237,34cyclictest1410122-21kworker/1:111:49:161
1232922997237,34cyclictest1410122-21kworker/1:111:49:161
1232922996928,39cyclictest1810835-1kworker/1:0H11:55:001
1232922996763,2cyclictest0-21swapper/112:26:091
1232922996645,19cyclictest1333751-21kworker/1:210:30:141
1232922996637,17cyclictest1263584-21kworker/1:309:10:161
123292299660,65cyclictest0-21swapper/112:22:131
1232922996560,2cyclictest0-21swapper/111:16:391
1232922996459,3cyclictest0-21swapper/108:03:141
1232922996444,18cyclictest1231976-21kworker/1:307:15:081
123292299640,63cyclictest0-21swapper/110:49:491
1232922996358,3cyclictest0-21swapper/112:12:141
1232922996157,2cyclictest0-21swapper/110:25:171
1232922996143,16cyclictest1386105-21kworker/1:311:20:151
1232922996141,15cyclictest1303647-21kworker/1:310:05:261
1232922996133,26cyclictest1281026-21kworker/1:209:22:421
1232922996043,16cyclictest1349620-21kworker/1:310:35:281
1232922996043,16cyclictest1303647-21kworker/1:310:00:281
1232922996043,15cyclictest1253635-21kworker/1:008:20:251
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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