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2026-05-10 - 08:48
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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 Sun May 10, 2026 00:43:29)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
250439910741553479,53838cyclictest2272-21munin-node22:49:220
250439910714253390,53657cyclictest21817-21ssh22:11:510
250439910679553469,53326cyclictest0-21swapper23:09:380
250439910666353415,53156cyclictest0-21swapper19:14:400
250439910657753398,53179cyclictest0-21swapper20:36:240
250439910655953390,53103cyclictest0-21swapper23:51:500
250439910652053439,53081cyclictest0-21swapper20:00:030
250439910650053471,53029cyclictest0-21swapper22:36:480
250439910648053467,53013cyclictest0-21swapper00:15:370
250439910647153462,53009cyclictest0-21swapper22:51:530
250439910644053400,53040cyclictest0-21swapper00:09:150
250439910643953438,53001cyclictest0-21swapper00:39:440
250439910622353474,52749cyclictest0-21swapper19:38:170
250439910622153403,52818cyclictest0-21swapper21:06:520
250439910620253463,52739cyclictest0-21swapper20:44:460
250439910619153405,52786cyclictest0-21swapper19:32:350
250439910618153472,52709cyclictest0-21swapper19:16:510
250439910616753446,52721cyclictest0-21swapper19:48:300
250439910611553411,52704cyclictest0-21swapper19:27:540
250439910606453033,53028cyclictest11797-21ssh21:11:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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