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2026-04-20 - 01:29
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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
Characteristics of the 20 highest latencies:
System rack6slot6 (updated Sun Apr 19, 2026 12:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
320179910665153396,53190cyclictest0-21swapper11:30:500
320179910655453475,53079cyclictest0-21swapper12:23:350
320179910650853473,53035cyclictest0-21swapper09:05:590
320179910650853432,53076cyclictest0-21swapper09:46:400
320179910650553418,53087cyclictest0-21swapper10:02:350
320179910649753464,53033cyclictest0-21swapper07:34:420
320179910647353419,52990cyclictest3950irq/9-acpi11:46:150
320179910645953407,53052cyclictest0-21swapper07:45:050
320179910645453464,52990cyclictest0-21swapper12:13:430
320179910644353399,53044cyclictest0-21swapper12:26:460
320179910643753440,52997cyclictest0-21swapper07:55:580
320179910638353414,52969cyclictest0-21swapper11:07:540
320179910622353478,52745cyclictest0-21swapper08:57:360
320179910621253410,52765cyclictest0-21swapper07:18:280
320179910620353468,52735cyclictest0-21swapper07:37:430
320179910620053463,52737cyclictest0-21swapper11:51:360
320179910617753411,52766cyclictest0-21swapper07:29:410
320179910613853427,52711cyclictest0-21swapper08:06:210
320179910612353424,52699cyclictest0-21swapper07:44:550
320179910607452965,53107cyclictest0-21swapper11:36:120
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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