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2026-07-21 - 06:30
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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 Tue Jul 21, 2026 00:45:00)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1108421160,7sleep011087-21grep20:45:350
759029626,25sleep10-21swapper/119:08:181
51512930,5sleep05152-21cat22:00:360
7944998734,37cyclictest26-21ksoftirqd/100:20:371
773028717,25sleep00-21swapper/019:09:160
253122840,6sleep10-21swapper/100:30:021
7944998028,37cyclictest26-21ksoftirqd/123:50:391
7944997925,39cyclictest26-21ksoftirqd/123:00:191
7937997921,14cyclictest14-21ksoftirqd/022:55:000
7937997921,14cyclictest14-21ksoftirqd/022:55:000
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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