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2026-03-28 - 09:36
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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 50 highest latencies:
System rack6slot6 (updated Sat Mar 28, 2026 00:43:29)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
191699910686453469,53270cyclictest2099-21runrttasks20:15:580
191699910684053454,53290cyclictest9475-21ssh22:46:210
191699910673853479,53259cyclictest0-21swapper00:08:150
191699910669953429,53179cyclictest9-21ksoftirqd/000:34:020
191699910659553397,53198cyclictest0-21swapper00:15:570
191699910652353467,53056cyclictest0-21swapper20:39:050
191699910644353444,52999cyclictest0-21swapper20:11:070
191699910642053434,52986cyclictest0-21swapper21:51:160
191699910640953469,52875cyclictest9-21ksoftirqd/000:03:540
191699910619453468,52726cyclictest0-21swapper20:43:360
191699910617953457,52722cyclictest0-21swapper21:47:140
191699910616653446,52720cyclictest0-21swapper19:35:060
191699910615253439,52713cyclictest0-21swapper20:31:530
191699910614453395,52749cyclictest0-21swapper19:59:230
191699910613353420,52713cyclictest0-21swapper20:51:280
191699910605852972,53084cyclictest0-21swapper23:27:030
191699910587452946,52926cyclictest16251-21ssh22:56:040
191699910583553313,52509cyclictest5750irq/8-rtc000:26:000
191699910542753164,52263cyclictest0-21swapper21:17:060
191699910539353169,52214cyclictest0-21swapper22:26:160
191699910516253048,52114cyclictest0-21swapper21:23:070
191699910511452979,52133cyclictest3950irq/9-acpi23:52:410
191699910508852963,52123cyclictest21692-21ssh21:30:400
191699910502152923,52096cyclictest0-21swapper23:09:480
19169995365227,53533cyclictest0-21swapper00:38:540
19169995335027,53323cyclictest0-21swapper22:04:090
19169995332427,53203cyclictest0-21swapper21:09:030
19169995285328,52825cyclictest0-21swapper19:21:320
19169995282829,52799cyclictest0-21swapper20:04:250
19169995282627,52799cyclictest0-21swapper19:27:040
191699926361088,1423cyclictest6423-21diskmemload23:16:200
191699925401089,1325cyclictest18830-21ssh21:26:590
191699925101091,1294cyclictest20833-21ssh22:16:030
191699924011031,1244cyclictest15389-21ssh23:41:270
191699923981064,1240cyclictest134850irq/9-eth023:20:310
191699922461048,1104cyclictest0-21swapper22:12:420
191699922461002,1178cyclictest141882sleep022:54:040
191699921681048,1021cyclictest1907-21snmpd19:17:410
191699920761036,1020cyclictest0-21swapper21:10:040
191699920671000,1020cyclictest0-21swapper19:43:190
19169992036991,1011cyclictest0-21swapper23:10:080
191699920031083,853cyclictest3950irq/9-acpi22:42:500
191699919761024,858cyclictest0-21swapper19:53:520
19169991965944,984cyclictest25806-21ssh22:24:150
19169991960953,987cyclictest0-21swapper19:12:200
19169991943941,965cyclictest14978-21ssh22:08:200
19169991928927,966cyclictest0-21swapper21:38:220
191699919161015,863cyclictest4902-21sh00:13:260
19169991914948,953cyclictest0-21swapper19:49:510
191699919031035,775cyclictest0-21swapper20:27:110
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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