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2026-03-25 - 17:14
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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 Wed Mar 25, 2026 12:44:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
20902825,64sleep00-21swapper/007:08:230
20902825,64sleep00-21swapper/007:08:220
2445997345,12cyclictest26-21ksoftirqd/107:55:211
224827236,25sleep10-21swapper/107:09:331
224827236,25sleep10-21swapper/107:09:331
2437996842,14cyclictest14-21ksoftirqd/010:04:250
2445996642,9cyclictest26-21ksoftirqd/111:55:011
2445996542,9cyclictest26-21ksoftirqd/111:10:011
2445996541,9cyclictest26-21ksoftirqd/107:35:011
2445996541,10cyclictest26-21ksoftirqd/111:00:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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