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2025-12-11 - 17:43
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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 Dec 11, 2025 12:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
274809910697253465,53410cyclictest12411-21diskmemload09:24:110
274809910683753411,53335cyclictest0-21swapper08:22:130
274809910675753441,53219cyclictest2103-21runrttasks07:40:410
274809910665953452,53086cyclictest32117-21ssh11:48:530
274809910661453464,53084cyclictest0-21swapper11:57:250
274809910657853418,53068cyclictest0-21swapper12:12:190
274809910653553450,53085cyclictest0-21swapper07:56:560
274809910645953467,52992cyclictest0-21swapper10:19:570
274809910643753468,52969cyclictest0-21swapper09:19:190
274809910643653446,52990cyclictest0-21swapper12:32:050
274809910636053429,52931cyclictest0-21swapper07:33:290
274809910625753476,52781cyclictest0-21swapper08:38:180
274809910622453476,52748cyclictest0-21swapper08:28:550
274809910621853470,52748cyclictest0-21swapper07:24:570
274809910620553469,52736cyclictest0-21swapper07:29:280
274809910615553461,52694cyclictest0-21swapper11:19:140
274809910615153398,52753cyclictest0-21swapper07:36:400
274809910580153027,52772cyclictest4671-21ssh12:39:270
274809910574553003,52740cyclictest22386-21ssh12:19:410
274809910562253038,52582cyclictest11190-21ssh12:04:270
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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