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2026-05-19 - 15:58
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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 Tue May 19, 2026 12:43:35)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2768799210566105317,105247cyclictest22887-21munin-node08:15:180
276879910713353473,53596cyclictest3950irq/9-acpi11:21:020
276879910699653475,53445cyclictest0-21swapper08:37:450
276879910698253448,53412cyclictest2449-21ssh09:41:330
276879910675653426,53330cyclictest0-21swapper08:48:080
276879910665153433,53218cyclictest11721-21ssh12:19:590
276879910662753429,53106cyclictest0-21swapper10:08:310
276879910659253463,53034cyclictest12695-21diskmemload11:53:410
276879910655453425,53129cyclictest0-21swapper12:03:040
276879910655053420,53040cyclictest0-21swapper11:59:030
276879910653453473,53061cyclictest0-21swapper09:12:350
276879910653353382,53086cyclictest0-21swapper08:06:360
276879910651853477,53041cyclictest0-21swapper11:07:280
276879910650253471,53031cyclictest0-21swapper09:38:520
276879910648653466,53020cyclictest0-21swapper09:33:310
276879910642153432,52989cyclictest0-21swapper12:30:220
276879910634153463,52878cyclictest0-21swapper08:03:450
276879910630453475,52765cyclictest0-21swapper08:57:100
276879910625053483,52767cyclictest0-21swapper08:27:420
276879910621453459,52717cyclictest0-21swapper12:22:390
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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