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2026-05-31 - 13:59
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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 Sun May 31, 2026 12:45:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
143029910538,19cyclictest14296-21cyclictest11:10:150
143029910417,22cyclictest0-21swapper/010:35:140
13729210117,37sleep00-21swapper/007:05:450
14302999518,19cyclictest0-21swapper/007:20:210
1381129530,53sleep10-21swapper/107:06:381
1430299948,36cyclictest65-21kswapd007:40:130
14302999469,11cyclictest14-21ksoftirqd/011:25:140
1430299929,41cyclictest801-21gpm11:05:130
14302998958,18cyclictest14-21ksoftirqd/012:00:220
14302998958,18cyclictest14-21ksoftirqd/012:00:220
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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