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2025-12-07 - 11:12
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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 Sun Dec 07, 2025 00:43:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
147598270,11rtkit-daemon651313-21ssh00:33:331
172411992320,1cyclictest0-21swapper/323:10:243
17241199231,16cyclictest371400-21taskset21:40:013
2564562212,7sleep0258301-21cut20:15:190
172411992117,1cyclictest0-21swapper/320:50:003
17241199211,15cyclictest539454-21taskset23:24:013
172411992017,1cyclictest0-21swapper/323:55:173
172411992017,1cyclictest0-21swapper/319:50:173
172411991916,1cyclictest0-21swapper/321:45:163
172411991916,1cyclictest0-21swapper/321:10:013
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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