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2025-11-28 - 06:20
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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 Fri Nov 28, 2025 00:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
133059910709853410,53623cyclictest3950irq/9-acpi22:17:260
133059910673953444,53295cyclictest0-21swapper22:02:210
133059910661353426,53098cyclictest9-21ksoftirqd/023:11:310
133059910651053472,53038cyclictest0-21swapper23:18:530
133059910649353443,53050cyclictest0-21swapper20:10:290
133059910648653466,53020cyclictest0-21swapper20:32:150
133059910648653460,53026cyclictest0-21swapper00:20:210
133059910647053453,53017cyclictest0-21swapper22:58:080
133059910646753455,53012cyclictest0-21swapper23:38:490
133059910645553444,53011cyclictest0-21swapper19:50:230
133059910644853477,52971cyclictest0-21swapper21:09:060
133059910644753401,53046cyclictest0-21swapper23:28:360
133059910644653444,53002cyclictest0-21swapper20:17:210
133059910643153393,53038cyclictest0-21swapper21:45:170
133059910642253433,52989cyclictest0-21swapper20:42:380
133059910641853428,52990cyclictest0-21swapper00:36:560
133059910640353425,52978cyclictest0-21swapper21:41:250
133059910630953472,52837cyclictest0-21swapper20:07:280
133059910630453406,52898cyclictest0-21swapper20:53:320
133059910627353379,52829cyclictest0-21swapper19:36:290
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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