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2026-07-07 - 05:02
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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 10 highest latencies:
System rack6slot6 (updated Tue Jul 07, 2026 00:43:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
314339910733353455,53754cyclictest1907-21snmpd21:49:180
314339910713653393,53677cyclictest3950irq/9-acpi21:29:330
314339910697153425,53452cyclictest0-21swapper20:26:450
314339910673953455,53219cyclictest6813-21kworker/u2:322:39:130
314339910665353468,53185cyclictest0-21swapper23:59:160
314339910664053416,53224cyclictest0-21swapper20:09:400
314339910663753464,53173cyclictest0-21swapper22:05:330
314339910653253405,53127cyclictest0-21swapper23:27:070
314339910649453448,53046cyclictest0-21swapper23:17:440
314339910644553440,53005cyclictest0-21swapper19:55:050
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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