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2026-01-12 - 14:35
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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 Mon Jan 12, 2026 12:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
135929910729253471,53724cyclictest9729-21ssh11:00:440
135929910705053458,53526cyclictest134850irq/9-eth010:28:550
135929910698753418,53569cyclictest0-21swapper10:48:400
135929910684853430,53418cyclictest2099-21runrttasks07:17:300
135929910667553420,53161cyclictest0-21swapper09:01:190
135929910664553468,53113cyclictest30898-21kworker/0:209:17:540
135929910661253399,53125cyclictest3950irq/9-acpi11:16:080
135929910660853476,53132cyclictest0-21swapper11:10:370
135929910659753457,53077cyclictest9-21ksoftirqd/010:39:480
135929910659153429,53105cyclictest0-21swapper08:15:060
135929910657753464,53113cyclictest0-21swapper07:57:510
135929910657353413,53069cyclictest0-21swapper08:40:540
135929910651653476,53040cyclictest0-21swapper12:30:400
135929910651253474,53038cyclictest0-21swapper09:46:430
135929910650353473,53030cyclictest0-21swapper09:30:380
135929910642453430,52994cyclictest0-21swapper11:48:580
135929910638953466,52832cyclictest0-21swapper08:51:170
135929910627253453,52819cyclictest0-21swapper10:01:570
135929910625953461,52798cyclictest0-21swapper08:11:450
135929910624953383,52801cyclictest0-21swapper07:32:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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