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2025-11-23 - 17:06
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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 Nov 23, 2025 12:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1167299210608105389,105216cyclictest21966-21processes10:30:230
116729910700653393,53518cyclictest1911-21snmpd12:16:030
116729910687653478,53398cyclictest0-21swapper12:04:200
116729910681953451,53277cyclictest9-21ksoftirqd/008:39:010
116729910673653481,53191cyclictest9-21ksoftirqd/011:27:290
116729910672053336,53371cyclictest0-21swapper09:41:190
116729910669253466,53162cyclictest133750irq/9-eth010:39:050
116729910664353428,53215cyclictest0-21swapper08:29:080
116729910657153381,53126cyclictest3950irq/9-acpi07:33:120
116729910652353420,53037cyclictest0-21swapper10:22:400
116729910651853437,53081cyclictest0-21swapper09:36:070
116729910647853423,53055cyclictest0-21swapper11:48:250
116729910646953469,53000cyclictest0-21swapper08:52:240
116729910644453441,53003cyclictest0-21swapper09:54:020
116729910632453095,53219cyclictest0-21swapper11:13:450
116729910630053472,52828cyclictest0-21swapper08:01:100
116729910628753389,52862cyclictest14893-21sh11:51:160
116729910627653406,52806cyclictest9-21ksoftirqd/008:11:030
116729910618853456,52732cyclictest0-21swapper11:23:280
116729910617553406,52769cyclictest0-21swapper07:48:560
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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