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2026-03-12 - 02:42
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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 Thu Mar 12, 2026 00:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2070799209785105306,104477cyclictest0-21swapper19:31:490
207079910699053446,53452cyclictest0-21swapper19:24:170
207079910695953405,53554cyclictest0-21swapper23:06:010
207079910650253474,53028cyclictest0-21swapper21:11:380
207079910647453416,53058cyclictest0-21swapper21:31:230
207079910644253441,53001cyclictest0-21swapper00:03:170
207079910621153473,52738cyclictest0-21swapper19:19:550
207079910620653467,52739cyclictest0-21swapper20:14:010
207079910620453465,52739cyclictest0-21swapper19:28:480
207079910617153433,52738cyclictest0-21swapper20:47:510
207079910616653403,52763cyclictest0-21swapper20:26:250
207079910615653460,52696cyclictest0-21swapper20:07:390
207079910615353439,52714cyclictest0-21swapper21:09:070
207079910614653055,53089cyclictest0-21swapper23:53:040
207079910612853431,52697cyclictest0-21swapper20:38:180
207079910611253027,53083cyclictest0-21swapper19:54:350
207079910609853017,53079cyclictest0-21swapper22:06:530
207079910607352998,53073cyclictest0-21swapper23:55:550
207079910606452970,53092cyclictest0-21swapper22:38:430
207079910604653032,53012cyclictest1055-21ssh22:32:010
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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