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2026-07-01 - 11:12
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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 Wed Jul 01, 2026 00:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
45609910693553407,53404cyclictest3042-21ssh22:24:590
45609910692453461,53463cyclictest0-21swapper23:40:310
45609910686553380,53421cyclictest9-21ksoftirqd/022:17:170
45609910686453440,53329cyclictest16568-21diskmemload21:14:390
45609910665653405,53159cyclictest0-21swapper20:09:500
45609910650953476,53033cyclictest0-21swapper20:14:310
45609910649853474,53024cyclictest0-21swapper21:41:460
45609910648753465,53022cyclictest0-21swapper00:17:510
45609910648153457,53024cyclictest0-21swapper22:38:030
45609910647653338,53073cyclictest26953-21kworker/0:123:57:560
45609910645853445,53013cyclictest0-21swapper23:21:150
45609910645753453,53004cyclictest0-21swapper22:08:440
45609910645253486,52966cyclictest0-21swapper21:36:150
45609910641453430,52984cyclictest0-21swapper23:54:250
45609910639353416,52977cyclictest0-21swapper23:32:590
45609910637653405,52971cyclictest0-21swapper19:27:080
45609910636053419,52849cyclictest0-21swapper19:52:050
45609910633753479,52746cyclictest0-21swapper20:35:370
45609910625753418,52748cyclictest0-21swapper19:30:490
45609910624653445,52801cyclictest0-21swapper20:29:460
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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