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2026-08-15 - 19:58
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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 10 highest latencies:
System rack8slot4.osadl.org (updated Sat Aug 15, 2026 12:44:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
8461622228165,19sleep30-21swapper/307:07:093
8463512224164,19sleep60-21swapper/607:09:536
8463462224165,18sleep10-21swapper/107:09:471
8462332223161,50sleep00-21swapper/007:08:090
8439982223194,19sleep70-21swapper/707:05:037
8462462222159,53sleep40-21swapper/407:08:234
8462442218188,20sleep20-21swapper/207:08:212
8463502216186,20sleep50-21swapper/507:09:525
99678521380,0sleep00-21swapper/011:36:290
10082542420,0sleep7881rcuc/711:56:297
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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