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2026-05-23 - 14:01
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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 rackbslot7.osadl.org (updated Sat May 23, 2026 00:44:35)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
48759910363,34cyclictest2374-21systemd-journal22:27:342
540921000,8sleep10-21swapper/122:32:051
4867999960,31cyclictest4852-21cyclictest21:20:101
4867999960,31cyclictest4852-21cyclictest21:20:101
4867999855,36cyclictest0-21swapper/121:25:581
34082989,59sleep23485-21awk18:55:562
4867999631,13cyclictest0-21swapper/119:30:421
486799962,36cyclictest11318-21latency_hist20:55:401
486799962,36cyclictest11318-21latency_hist20:55:401
486799953,41cyclictest10820-21timerandwakeup22:41:121
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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