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2026-04-09 - 20:26
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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 Apr 09, 2026 12:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
67699910664653456,53099cyclictest9-21ksoftirqd/007:55:300
67699910652753404,53059cyclictest9-21ksoftirqd/009:48:230
67699910650753469,53038cyclictest0-21swapper09:21:050
67699910650053480,52932cyclictest6762-21cyclictest10:42:180
67699910648853468,53020cyclictest0-21swapper10:31:550
67699910646953452,53017cyclictest0-21swapper11:18:090
67699910645753447,53010cyclictest0-21swapper08:12:550
67699910645753436,53021cyclictest0-21swapper09:35:290
67699910645753406,53051cyclictest0-21swapper11:23:300
67699910645453449,53005cyclictest0-21swapper12:21:370
67699910645453435,53019cyclictest0-21swapper10:09:590
67699910645353404,53049cyclictest0-21swapper09:34:590
67699910644353448,52995cyclictest0-21swapper11:01:340
67699910643453434,53000cyclictest0-21swapper11:13:570
67699910642753465,52962cyclictest0-21swapper08:08:540
67699910637453135,53236cyclictest0-21swapper11:58:200
67699910636153435,52926cyclictest0-21swapper08:18:270
67699910628053396,52818cyclictest0-21swapper07:41:060
67699910627853406,52759cyclictest0-21swapper08:52:570
67699910627653384,52801cyclictest0-21swapper08:59:590
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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