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2026-04-09 - 04:49
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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 rackfslot7.osadl.org (updated Thu Apr 09, 2026 00:46:13)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
352443999950,15cyclictest0-21swapper/719:10:147
3524439997860,0cyclictest0-21swapper/721:14:337
3524439997538,18cyclictest871ktimers/722:05:177
3524439997537,19cyclictest101550irq/39-eno2-TxRx-000:40:017
3524439997518,38cyclictest3701063-21munin-run00:30:027
3524439997517,39cyclictest1086-21runrttasks21:15:547
3524439997233,19cyclictest101550irq/39-eno2-TxRx-020:25:177
3524439997031,39cyclictest0-21swapper/721:57:217
3524439996931,19cyclictest3604695-21cut21:35:117
3524439996911,39cyclictest0-21swapper/723:52:447
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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