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2026-08-14 - 19:54
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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 10 highest latencies:
System rack6slot6 (updated Fri Aug 14, 2026 12:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
120819910761253396,54120cyclictest1907-21snmpd10:39:490
120819910753453434,54003cyclictest16042-21runrttasks07:19:310
120819910744253477,53841cyclictest2099-21runrttasks07:29:440
120819910697053423,53455cyclictest0-21swapper09:25:370
120819910674953413,53270cyclictest0-21swapper07:39:070
120819910669153448,53153cyclictest3345-21kworker/0:111:04:160
120819910664653441,53115cyclictest30023-21kworker/0:307:53:510
120819910662553463,53073cyclictest9-21ksoftirqd/010:49:010
120819910661953410,53118cyclictest9-21ksoftirqd/010:53:330
120819910660253433,53102cyclictest0-21swapper08:34:230
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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