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2025-11-26 - 10:01
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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 Wed Nov 26, 2025 00:43:29)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
154479910683953479,53263cyclictest2103-21runrttasks23:55:540
154479910661853442,53176cyclictest0-21swapper22:48:250
154479910653853445,53093cyclictest0-21swapper23:06:000
154479910652953444,53085cyclictest0-21swapper20:19:320
154479910646153449,53012cyclictest0-21swapper20:42:590
154479910644053459,52917cyclictest9-21ksoftirqd/021:09:470
154479910639653472,52832cyclictest0-21swapper19:27:370
154479910628353396,52887cyclictest0-21swapper21:48:580
154479910626553391,52809cyclictest0-21swapper19:34:090
154479910624953474,52775cyclictest0-21swapper21:01:240
154479910620253464,52738cyclictest0-21swapper21:21:500
154479910618653415,52771cyclictest0-21swapper19:47:330
154479910617253405,52767cyclictest0-21swapper20:02:270
154479910616953435,52734cyclictest0-21swapper20:38:580
154479910616053402,52758cyclictest0-21swapper23:41:200
154479910614453435,52709cyclictest0-21swapper19:43:420
154479910594153005,52934cyclictest20056-21ssh00:08:480
154479910568052975,52702cyclictest10346-21ssh21:43:460
154479910509153005,52084cyclictest0-21swapper21:18:490
154479910508152983,52096cyclictest0-21swapper22:14:350
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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