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2026-01-02 - 12:45
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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 Fri Jan 02, 2026 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
133549910739253469,53825cyclictest2099-21runrttasks20:00:370
133549910695953418,53450cyclictest0-21swapper20:28:350
133549910688953419,53372cyclictest22279-21ssh23:50:330
133549910664853389,53193cyclictest0-21swapper00:27:440
133549910664053436,53113cyclictest0-21swapper20:10:500
133549910659453420,53110cyclictest9-21ksoftirqd/000:34:060
133549910658253413,53105cyclictest9-21ksoftirqd/023:44:110
133549910657053470,53100cyclictest0-21swapper20:44:500
133549910656753410,53094cyclictest9-21ksoftirqd/023:39:100
133549910655653447,53109cyclictest0-21swapper19:53:150
133549910651353474,53039cyclictest0-21swapper22:30:000
133549910651253474,53038cyclictest0-21swapper22:02:420
133549910650653472,53034cyclictest0-21swapper19:26:370
133549910649853436,53062cyclictest0-21swapper23:09:410
133549910649153464,53027cyclictest0-21swapper19:37:100
133549910648453458,53026cyclictest0-21swapper00:19:110
133549910647753384,53029cyclictest9-21ksoftirqd/020:48:010
133549910647453460,53014cyclictest0-21swapper22:35:110
133549910642153435,52986cyclictest0-21swapper21:43:470
133549910641653427,52989cyclictest0-21swapper00:11:190
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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