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2026-05-06 - 23:52
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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: ondemand
Compare latency of primary with shadow system
Characteristics of the 10 highest latencies:
System rack5slot4.osadl.org (updated Wed May 06, 2026 12:44:03)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
17749214179,7sleep10-21swapper/107:06:541
17821213069,7sleep00-21swapper/007:07:490
178232121111,7sleep20-21swapper/207:07:512
177342113103,7sleep30-21swapper/307:06:443
154492650,0sleep20-21swapper/209:00:002
190702530,0sleep00-21swapper/010:00:130
1816899320,31cyclictest0-21swapper/110:40:111
1817399270,26cyclictest0-21swapper/208:35:432
1816899270,26cyclictest0-21swapper/110:27:221
1817399260,25cyclictest0-21swapper/211:25:232
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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