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2026-05-16 - 13:48
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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 rack0slot0.osadl.org (updated Sat May 16, 2026 12:45:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1785321460,3sleep1925299cyclictest09:39:441
1785321460,3sleep1925299cyclictest09:39:431
2747521280,4sleep7929099cyclictest10:54:517
2295021190,1sleep70-21swapper/710:35:287
1067821080,0sleep10-21swapper/110:20:071
255372860,1sleep50-21swapper/510:31:175
289782840,0sleep30-21swapper/310:41:013
26142840,1sleep778-21ksoftirqd/709:14:347
197502830,1sleep00-21swapper/010:12:050
79232770,1sleep60-21swapper/610:24:216
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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