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2026-07-10 - 20:16
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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 Fri Jul 10, 2026 12:45:03)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
893329320,19sleep10-21swapper/107:09:531
866129218,27sleep00-21swapper/007:07:280
9078998535,45cyclictest26-21ksoftirqd/108:15:341
907499805,19cyclictest14226-21apt-get10:25:120
9078997733,9cyclictest26-21ksoftirqd/109:15:301
9078997130,14cyclictest26-21ksoftirqd/108:40:011
9078996926,13cyclictest26-21ksoftirqd/109:25:001
9078996925,39cyclictest26-21ksoftirqd/112:05:331
9078996923,42cyclictest26-21ksoftirqd/107:40:331
9078996825,38cyclictest26-21ksoftirqd/109:00:331
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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