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2026-05-11 - 05:20
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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 Mon May 11, 2026 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2474099209924105436,104486cyclictest0-21swapper22:01:230
247409910696653424,53451cyclictest0-21swapper23:37:110
247409910687353473,53335cyclictest25566-21ssh21:32:250
247409910678853470,53318cyclictest0-21swapper22:13:160
247409910671653442,53274cyclictest0-21swapper22:53:280
247409910667653423,53187cyclictest0-21swapper22:33:320
247409910665153439,53212cyclictest0-21swapper23:03:010
247409910663653468,53168cyclictest0-21swapper00:08:400
247409910661753464,53153cyclictest0-21swapper21:42:480
247409910657953398,53085cyclictest9900-21ssh23:32:090
247409910655853394,53100cyclictest9-21ksoftirqd/000:35:470
247409910653353442,53091cyclictest0-21swapper19:54:360
247409910651353410,53041cyclictest3950irq/9-acpi22:42:350
247409910649953469,53030cyclictest0-21swapper21:52:200
247409910646853456,53012cyclictest0-21swapper20:32:170
247409910645953456,53003cyclictest0-21swapper21:14:190
247409910645753455,53002cyclictest0-21swapper23:22:260
247409910645253467,52985cyclictest0-21swapper20:16:430
247409910644653439,53007cyclictest0-21swapper21:17:500
247409910644353447,52996cyclictest0-21swapper20:25:250
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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