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2026-09-22 - 13:08
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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 Sep 22, 2026 00:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
109219910734253460,53759cyclictest2790-21gnome-settings-19:34:100
109219910706953423,53579cyclictest0-21swapper20:21:540
109219910670653407,53299cyclictest0-21swapper23:08:010
109219910660153450,53151cyclictest0-21swapper23:44:020
109219910657153452,53119cyclictest0-21swapper20:28:050
109219910656253456,53106cyclictest0-21swapper21:48:080
109219910655453393,53096cyclictest0-21swapper19:13:140
109219910652853397,53131cyclictest0-21swapper00:19:320
109219910651453436,53078cyclictest0-21swapper22:23:490
109219910649053468,53022cyclictest0-21swapper19:26:180
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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