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2025-12-03 - 02:21
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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 Tue Dec 02, 2025 12:46:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
88237721250,0sleep10-21swapper/110:00:121
216999960,46rtkit-daemon0-21swapper/607:05:326
774933999016,39cyclictest0-21swapper/007:13:150
774933998815,40cyclictest0-21swapper/009:18:140
77455928846,13sleep00-21swapper/007:07:030
774933998715,37cyclictest0-21swapper/009:43:140
77466828642,13sleep40-21swapper/407:08:354
77474228546,13sleep10-21swapper/107:09:361
774933998317,37cyclictest0-21swapper/007:23:140
774933998316,37cyclictest0-21swapper/011:03:140
774933998216,37cyclictest0-21swapper/008:43:150
774933998216,36cyclictest0-21swapper/009:33:150
774933998116,35cyclictest0-21swapper/009:08:150
77471728141,34sleep50-21swapper/507:09:175
8230082780,0sleep00-21swapper/008:25:120
774954997815,36cyclictest0-21swapper/307:58:143
8464252750,0sleep010-21ksoftirqd/009:00:210
8630882740,0sleep10-21swapper/109:30:001
8288632710,2sleep335-21ksoftirqd/308:35:003
77467627146,12sleep30-21swapper/307:08:433
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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