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2026-06-05 - 22:59
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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 Jun 05, 2026 12:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
23739910737253466,53815cyclictest30563-21kworker/u2:110:11:350
23739910715153473,53588cyclictest8232-1kworker/u3:210:50:460
23739910696653418,53456cyclictest0-21swapper09:41:460
23739910678253477,53213cyclictest231182sleep007:52:250
23739910670753429,53278cyclictest0-21swapper11:18:340
23739910658553395,53101cyclictest9-21ksoftirqd/008:13:110
23739910655053386,53099cyclictest9-21ksoftirqd/010:44:540
23739910654453385,53095cyclictest9-21ksoftirqd/011:05:500
23739910649853467,53031cyclictest0-21swapper09:04:450
23739910648953435,53054cyclictest0-21swapper08:47:000
23739910648253388,53005cyclictest134850irq/9-eth009:54:200
23739910647853461,53017cyclictest0-21swapper12:24:530
23739910647153413,53058cyclictest0-21swapper07:57:560
23739910646353471,52992cyclictest0-21swapper10:34:510
23739910646253408,53054cyclictest0-21swapper07:36:300
23739910646153407,53054cyclictest0-21swapper10:29:000
23739910645753458,52999cyclictest0-21swapper12:05:580
23739910645253399,53053cyclictest0-21swapper09:06:160
23739910644753402,53045cyclictest0-21swapper09:32:030
23739910644453444,53000cyclictest0-21swapper11:03:500
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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