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2026-04-20 - 10:02
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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 Apr 20, 2026 00:43:29)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
19509910990055080,54818cyclictest1741-21hald19:20:360
19509910690053452,53357cyclictest0-21swapper21:05:060
19509910669353451,53242cyclictest0-21swapper23:12:520
19509910666053471,53125cyclictest9-21ksoftirqd/023:07:210
19509910651053459,53051cyclictest0-21swapper23:21:050
19509910650053470,53030cyclictest0-21swapper20:29:250
19509910648653423,53063cyclictest0-21swapper21:28:320
19509910647653448,53028cyclictest0-21swapper00:21:320
19509910645853467,52991cyclictest0-21swapper22:58:080
19509910644753394,52991cyclictest1941-21cyclictest20:33:270
19509910644053443,52997cyclictest0-21swapper00:08:490
19509910643053434,52996cyclictest0-21swapper21:22:510
19509910639953369,52967cyclictest7582-21kworker/0:223:46:220
19509910621953432,52787cyclictest0-21swapper22:50:060
19509910620153401,52763cyclictest0-21swapper19:42:520
19509910618153472,52709cyclictest0-21swapper20:01:470
19509910614353393,52750cyclictest0-21swapper19:38:410
19509910613953391,52748cyclictest0-21swapper20:09:300
19509910613053432,52698cyclictest0-21swapper20:41:290
19509910609953014,53083cyclictest0-21swapper21:10:070
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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