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2026-03-24 - 14:58
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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 rack3slot6.osadl.org (updated Tue Mar 24, 2026 12:44:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
5215210532,25sleep10-21swapper/107:06:291
5307210419,39sleep00-21swapper/007:07:270
57219910377,13cyclictest14-21ksoftirqd/011:50:110
5721999873,16cyclictest14-21ksoftirqd/009:20:120
5721999873,14cyclictest14-21ksoftirqd/010:20:150
5721999766,20cyclictest0-21swapper/011:30:140
5721999668,19cyclictest14-21ksoftirqd/011:35:150
5721999018,20cyclictest0-21swapper/011:40:180
5721998961,17cyclictest14-21ksoftirqd/007:10:140
5721998861,18cyclictest14-21ksoftirqd/009:25:120
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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