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2026-07-05 - 23:04
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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 Sun Jul 05, 2026 12:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
9441995066,15cyclictest0-21swapper/107:10:181
944199442364,47cyclictest0-21swapper/108:37:581
944099429349,50cyclictest0-21swapper/008:37:580
93982131108,16sleep00-21swapper/007:09:560
944099945,40cyclictest0-21swapper/011:47:370
944099885,17cyclictest0-21swapper/007:16:140
944099884,37cyclictest0-21swapper/009:52:260
9440998813,30cyclictest0-21swapper/010:40:170
944099879,33cyclictest0-21swapper/012:15:140
944099855,39cyclictest0-21swapper/010:28:410
9440998510,25cyclictest0-21swapper/009:12:350
944099838,67cyclictest0-21swapper/010:02:180
944099827,19cyclictest0-21swapper/007:55:240
944099825,38cyclictest0-21swapper/011:15:290
788428128,26sleep10-21swapper/107:05:131
944099807,32cyclictest0-21swapper/010:22:220
944099795,39cyclictest0-21swapper/011:26:290
9440997914,24cyclictest0-21swapper/009:36:320
9440997913,25cyclictest0-21swapper/012:34:330
9440997913,25cyclictest0-21swapper/010:14:070
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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