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2026-03-21 - 17:04
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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 Sat Mar 21, 2026 12:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
127499209813105332,104479cyclictest0-21swapper10:24:390
12749910714053445,53573cyclictest2790-21gnome-settings-11:11:530
12749910696953422,53455cyclictest0-21swapper12:22:130
12749910693853430,53419cyclictest9-21ksoftirqd/007:56:470
12749910691553472,53321cyclictest18545-21diskmemload09:33:550
12749910683753443,53301cyclictest134850irq/9-eth011:07:210
12749910673053442,53288cyclictest0-21swapper07:16:150
12749910663653436,53109cyclictest9-21ksoftirqd/010:04:330
12749910659953430,53105cyclictest9-21ksoftirqd/011:04:310
12749910657853484,53094cyclictest0-21swapper07:32:300
12749910657553451,53032cyclictest0-21swapper07:38:410
12749910653053413,53117cyclictest0-21swapper11:26:570
12749910650553472,53033cyclictest0-21swapper07:14:240
12749910649353449,53044cyclictest0-21swapper12:07:290
12749910648153459,53022cyclictest0-21swapper12:17:520
12749910646753455,53012cyclictest0-21swapper08:13:410
12749910646353471,52992cyclictest0-21swapper11:42:320
12749910645853472,52986cyclictest0-21swapper10:59:590
12749910645853406,53052cyclictest0-21swapper11:55:250
12749910644953402,53047cyclictest0-21swapper11:54:050
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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