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2026-01-11 - 18:39
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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 Sun Jan 11, 2026 12:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
100039910716553475,53595cyclictest28287-21ssh09:59:210
100039910689853447,53451cyclictest0-21swapper11:44:020
100039910661553431,53184cyclictest0-21swapper09:48:580
100039910661253414,53107cyclictest0-21swapper09:32:040
100039910660553481,53058cyclictest0-21swapper12:30:150
100039910655353404,53149cyclictest0-21swapper07:45:330
100039910655353396,53094cyclictest9-21ksoftirqd/010:17:060
100039910649453475,53019cyclictest0-21swapper07:24:470
100039910648953427,53062cyclictest0-21swapper09:00:340
100039910647253455,53017cyclictest0-21swapper10:56:580
100039910646353450,53013cyclictest0-21swapper10:37:320
100039910644753481,52966cyclictest0-21swapper09:37:350
100039910644253445,52933cyclictest134850irq/9-eth011:11:520
100039910642553478,52856cyclictest0-21swapper12:04:270
100039910642253432,52990cyclictest0-21swapper09:24:210
100039910640653412,52904cyclictest9-21ksoftirqd/009:27:520
100039910638453414,52908cyclictest9991-21cyclictest08:25:040
100039910633753463,52874cyclictest0-21swapper07:58:470
100039910632653449,52877cyclictest0-21swapper08:57:340
100039910629053407,52819cyclictest9-21ksoftirqd/009:42:570
100039910626953423,52755cyclictest0-21swapper08:54:130
100039910620853471,52737cyclictest0-21swapper07:36:200
100039910620453470,52734cyclictest0-21swapper07:42:220
100039910619553464,52731cyclictest0-21swapper08:03:180
100039910616853447,52721cyclictest0-21swapper08:09:100
100039910616453456,52708cyclictest0-21swapper08:33:170
100039910616253403,52759cyclictest0-21swapper08:24:240
100039910615953401,52758cyclictest0-21swapper10:07:240
100039910612053420,52700cyclictest0-21swapper12:38:370
100039910596953331,52625cyclictest134850irq/9-eth010:46:350
100039910596453362,52602cyclictest0-21swapper11:29:570
100039910591853390,52528cyclictest0-21swapper11:31:080
100039910517553067,52106cyclictest0-21swapper11:15:430
100039910504052942,52096cyclictest0-21swapper11:56:050
10003995385853420,438cyclictest0-21swapper12:16:310
10003995385553420,435cyclictest0-21swapper10:28:000
10003995372535,53595cyclictest0-21swapper11:36:490
10003995364836,137cyclictest0-21swapper07:10:230
10003995349324,53469cyclictest0-21swapper08:49:210
10003995341224,862cyclictest9-21ksoftirqd/008:36:270
10003995331824,0cyclictest0-21swapper07:30:590
10003995325625,53231cyclictest0-21swapper12:22:330
10003995313426,53108cyclictest0-21swapper07:18:150
10003995304824,0cyclictest0-21swapper07:53:350
10003995303426,52917cyclictest0-21swapper08:18:220
10003995296652947,18cyclictest0-21swapper10:52:470
10003995295525,52891cyclictest9991-21cyclictest08:44:200
100039926931092,1474cyclictest7643-21ssh11:52:540
100039925131089,1299cyclictest9767-21ssh11:07:310
100039924551100,1264cyclictest9991-21cyclictest11:20:050
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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