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2026-04-03 - 07:32
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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 100 highest latencies:
System rack6slot6 (updated Fri Apr 03, 2026 00:43:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
204829910688453420,53399cyclictest134850irq/9-eth022:12:230
204829910679853435,53272cyclictest9-21ksoftirqd/022:16:140
204829910668453412,53208cyclictest5350irq/9-uhci_hcd:23:01:580
204829910666453473,53191cyclictest0-21swapper00:38:250
204829910666353395,53173cyclictest0-21swapper21:53:480
204829910660953464,53081cyclictest9-21ksoftirqd/022:21:360
204829910660653471,53135cyclictest0-21swapper19:30:470
204829910659253468,53124cyclictest0-21swapper19:19:030
204829910652953459,52973cyclictest2099-21runrttasks19:53:230
204829910650853472,53036cyclictest0-21swapper23:08:190
204829910650053392,53108cyclictest0-21swapper21:21:190
204829910648753463,53024cyclictest0-21swapper23:42:390
204829910648753422,53065cyclictest0-21swapper23:47:110
204829910647153413,53058cyclictest0-21swapper19:27:060
204829910647053453,53017cyclictest0-21swapper22:26:470
204829910644853399,53049cyclictest0-21swapper00:26:320
204829910643653447,52989cyclictest0-21swapper20:14:390
204829910642853432,52996cyclictest0-21swapper21:10:460
204829910642753389,53038cyclictest0-21swapper00:00:240
204829910639753408,52922cyclictest9-21ksoftirqd/020:05:470
204829910630353438,52865cyclictest0-21swapper20:17:500
204829910629453435,52859cyclictest0-21swapper19:39:290
204829910629153388,52811cyclictest0-21swapper21:08:350
204829910627953278,52988cyclictest3950irq/9-acpi21:59:400
204829910627553425,52850cyclictest0-21swapper19:10:510
204829910626753391,52811cyclictest0-21swapper20:53:110
204829910621653470,52746cyclictest0-21swapper20:58:020
204829910614653438,52708cyclictest0-21swapper20:48:490
204829910614453440,52704cyclictest0-21swapper20:30:540
204829910535353076,52277cyclictest0-21swapper00:21:100
204829910515053049,52099cyclictest0-21swapper23:59:040
20482995370129,0cyclictest13637-21ssh22:55:560
20482995333926,269cyclictest0-21swapper00:14:490
20482995323025,0cyclictest0-21swapper19:20:540
20482995313426,53108cyclictest0-21swapper20:21:210
20482995294126,52915cyclictest0-21swapper20:25:530
204829956332862,2759cyclictest1741-21hald21:17:380
204829924501008,1442cyclictest18509-21rm21:28:410
204829924411080,1238cyclictest5534-21diskmemload00:31:430
204829922331060,1045cyclictest24512-21ssh23:12:310
204829920891034,1019cyclictest0-21swapper00:08:470
204829920841031,1018cyclictest0-21swapper19:56:440
204829920771036,1004cyclictest28775-21ssh21:43:550
204829920671025,1007cyclictest0-21swapper22:06:320
204829920591027,1011cyclictest0-21swapper20:35:350
20482992058969,1053cyclictest22613-21ssh21:35:030
204829920571024,1013cyclictest0-21swapper20:00:350
204829920421038,970cyclictest0-21swapper21:47:060
20482992037999,1017cyclictest0-21swapper19:44:210
204829920181071,820cyclictest7415-21ssh22:47:130
20482991959932,993cyclictest0-21swapper23:26:550
20482991949938,976cyclictest0-21swapper23:32:460
20482991945959,963cyclictest0-21swapper23:24:440
204829919011057,780cyclictest1382-21kworker/u2:222:51:250
204829918591045,722cyclictest0-21swapper21:03:540
20482991847922,890cyclictest5148-21ssh22:44:430
204829918451084,637cyclictest9297-21ssh23:38:080
20482991756975,744cyclictest30831-21sh22:35:000
20482991693872,805cyclictest8048-21sh22:00:200
204829916581036,587cyclictest3950irq/9-acpi22:39:010
204829916541089,472cyclictest3950irq/9-acpi23:53:420
204829916181096,522cyclictest0-21swapper20:43:080
204829915971085,512cyclictest0-21swapper19:48:320
204829915541050,414cyclictest0-21swapper21:34:120
204829915511087,400cyclictest9-21ksoftirqd/000:17:290
204829914991010,422cyclictest0-21swapper23:16:320
19880258950,184sleep00-21swapper19:07:040
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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