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2025-12-18 - 18:55
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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, lowest P state: performance
Characteristics of the 20 highest latencies:
System rack6slot5.osadl.org (updated Thu Dec 18, 2025 12:43:51)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2435199107895595,5184cyclictest12469-21kworker/0:108:08:410
2435199105055535,4920cyclictest8811-21kworker/0:111:17:080
2435199102615326,4921cyclictest20617-21kworker/0:012:12:380
243519999785274,4693cyclictest12469-21kworker/0:108:00:050
243519993004755,4534cyclictest29914-21kworker/0:209:13:490
243519992144714,4489cyclictest29914-21kworker/0:208:47:520
243519990744638,4425cyclictest2165-21kworker/0:010:06:440
243519989384568,4359cyclictest29914-21kworker/0:209:00:440
243519989104540,4359cyclictest6273-21kworker/0:210:18:470
243519988694537,4321cyclictest6354-21kworker/0:211:12:060
243519988484724,4113cyclictest12469-21kworker/0:108:30:030
243519988264518,4304cyclictest15119-21kworker/0:109:39:290
243519987564545,4160cyclictest12469-21kworker/0:108:28:350
243519987444472,4261cyclictest12469-21kworker/0:107:47:460
243519986194495,4114cyclictest7606-21kworker/0:112:19:260
243519985564380,4165cyclictest12469-21kworker/0:107:43:250
243519984754438,4026cyclictest12469-21kworker/0:107:35:240
243519982114407,3793cyclictest11622-21kworker/0:211:24:570
243519981224226,3836cyclictest12469-21kworker/0:107:25:570
243519981084396,3652cyclictest12287-21kworker/0:209:22:410
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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