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2026-09-06 - 16:03
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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
Characteristics of the 10 highest latencies:
System rackdslot1.osadl.org (updated Sun Sep 06, 2026 12:45:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
311021560,6sleep02216699cyclictest12:15:190
2145121530,6sleep22216899cyclictest08:15:282
1174021420,6sleep12216799cyclictest12:35:181
1174021420,6sleep12216799cyclictest12:35:181
134491710,3ptp4l22309-21apt-get09:30:123
307712700,5sleep10-21swapper/109:45:241
22168996933,4cyclictest33-21ksoftirqd/207:40:282
22168996533,9cyclictest33-21ksoftirqd/210:50:012
22168996425,6cyclictest33-21ksoftirqd/211:00:282
2216899642,34cyclictest0-21swapper/212:39:562
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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