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2026-04-01 - 22:25
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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 rackeslot8.osadl.org (updated Wed Apr 01, 2026 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
282890623290,1sleep02828904-21systemd-run11:40:010
275396921160,1sleep10-21swapper/110:50:181
2440134992421,1cyclictest0-21swapper/312:25:123
2440134992320,1cyclictest0-21swapper/308:25:013
2440134992320,1cyclictest0-21swapper/307:40:143
2440134992220,0cyclictest0-21swapper/310:45:243
2440134992119,1cyclictest0-21swapper/311:45:223
2440134992119,1cyclictest0-21swapper/310:55:013
2440134992119,1cyclictest0-21swapper/309:05:203
2440134992118,1cyclictest0-21swapper/311:30:003
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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