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2026-04-19 - 05:50
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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 00:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
158149910691153411,53378cyclictest2099-21runrttasks22:26:340
158149910675953400,53359cyclictest0-21swapper21:18:150
158149910668853353,53311cyclictest18260-21ssh22:22:230
158149910655553393,53097cyclictest0-21swapper21:20:350
158149910654853383,53100cyclictest9-21ksoftirqd/019:46:580
158149910649553470,53025cyclictest0-21swapper23:28:520
158149910647453452,53022cyclictest0-21swapper22:41:090
158149910643253463,52969cyclictest0-21swapper23:17:390
158149910643053461,52969cyclictest0-21swapper20:16:070
158149910642953463,52966cyclictest0-21swapper00:21:070
158149910642053459,52961cyclictest0-21swapper19:33:350
158149910641953425,52994cyclictest0-21swapper20:08:450
158149910628153471,52810cyclictest0-21swapper19:55:310
158149910625753386,52806cyclictest0-21swapper20:50:370
158149910623753433,52804cyclictest0-21swapper20:38:430
158149910617853410,52768cyclictest0-21swapper20:56:180
158149910615153395,52756cyclictest0-21swapper20:31:110
158149910613953434,52705cyclictest0-21swapper21:00:300
158149910613553431,52704cyclictest0-21swapper20:29:210
158149910612653425,52701cyclictest0-21swapper20:22:490
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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