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2026-06-04 - 22:01
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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 Thu Jun 04, 2026 12:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
288529910703653410,53534cyclictest0-21swapper11:45:570
288529910696953422,53456cyclictest0-21swapper10:13:200
288529910670953413,53208cyclictest3950irq/9-acpi12:16:360
288529910663353421,53212cyclictest0-21swapper07:56:010
288529910660053412,53124cyclictest15002-21kworker/0:211:40:560
288529910656253412,53150cyclictest0-21swapper08:46:150
288529910655453389,53099cyclictest0-21swapper08:41:040
288529910650453474,53030cyclictest0-21swapper11:19:290
288529910648953472,53017cyclictest0-21swapper07:41:270
288529910648753462,53025cyclictest0-21swapper12:32:400
288529910647753416,53061cyclictest0-21swapper11:38:550
288529910646753411,53056cyclictest0-21swapper09:09:320
288529910645353405,53048cyclictest0-21swapper10:55:430
288529910645053401,53049cyclictest0-21swapper09:33:090
288529910643553437,52998cyclictest0-21swapper12:26:590
288529910633253461,52871cyclictest0-21swapper07:10:280
288529910626353391,52807cyclictest9-21ksoftirqd/008:01:420
288529910625953403,52794cyclictest3950irq/9-acpi11:13:180
288529910619353459,52734cyclictest0-21swapper07:54:000
288529910613053435,52695cyclictest0-21swapper09:42:520
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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