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2025-11-19 - 03:41
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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 792 highest latencies:
System rack6slot6 (updated Wed Nov 19, 2025 00:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2781799210504105416,105086cyclictest16423-21ssh00:13:050
278179910702153418,53539cyclictest6280-21kworker/u2:322:04:280
278179910695653379,53482cyclictest13491-21diskmemload00:08:240
278179910682353479,53344cyclictest0-21swapper23:29:030
278179910665753467,53190cyclictest0-21swapper21:52:150
278179910664753432,53215cyclictest0-21swapper20:07:450
278179910664253458,53184cyclictest0-21swapper21:16:040
278179910658753394,53102cyclictest9-21ksoftirqd/021:29:080
278179910649353421,53072cyclictest0-21swapper19:47:190
278179910649253478,52922cyclictest27807-21cyclictest23:34:040
278179910647953461,53018cyclictest0-21swapper21:06:120
278179910644653478,52968cyclictest0-21swapper20:43:350
278179910644253398,53044cyclictest0-21swapper19:32:150
278179910644153437,53004cyclictest0-21swapper21:42:420
278179910643053432,52998cyclictest0-21swapper22:57:440
278179910642553438,52987cyclictest0-21swapper00:37:430
278179910633853390,52884cyclictest9-21ksoftirqd/019:50:100
278179910631953480,52839cyclictest0-21swapper20:18:380
278179910625953386,52806cyclictest0-21swapper19:55:510
278179910623753424,52813cyclictest0-21swapper21:33:190
278179910622653479,52747cyclictest0-21swapper19:36:060
278179910621153469,52742cyclictest0-21swapper20:49:570
278179910619753472,52725cyclictest0-21swapper22:19:330
278179910616653404,52762cyclictest0-21swapper22:38:080
278179910614453422,52722cyclictest0-21swapper00:29:000
278179910591753016,52898cyclictest9421-21ssh23:18:500
278179910512253029,52091cyclictest0-21swapper23:37:050
27817995385953395,464cyclictest0-21swapper21:49:140
27817995377853447,240cyclictest0-21swapper20:57:490
27817995374553382,268cyclictest30017-21ssh00:31:310
27817995368725,53540cyclictest30937-21ssh23:03:560
27817995361326,0cyclictest0-21swapper22:42:090
27817995355553403,152cyclictest0-21swapper20:27:510
27817995341926,53393cyclictest0-21swapper00:04:230
27817995333426,53243cyclictest0-21swapper19:25:020
27817995323825,53147cyclictest0-21swapper20:14:170
27817995322724,454cyclictest0-21swapper20:36:030
27817995319526,382cyclictest0-21swapper21:14:140
27817995316527,53138cyclictest0-21swapper20:50:370
27817995276924,52745cyclictest0-21swapper20:03:130
278179923051024,1183cyclictest1114-21ssh22:22:030
278179922961084,1119cyclictest3950irq/9-acpi23:49:190
278179922771065,1187cyclictest6218-21ssh23:14:390
278179921191079,946cyclictest133750irq/9-eth023:56:410
27817992046998,1048cyclictest0-21swapper23:52:090
278179920061020,952cyclictest0-21swapper20:20:480
27817991980969,976cyclictest0-21swapper22:34:470
278179919681020,927cyclictest0-21swapper21:04:410
278179919421074,771cyclictest13491-21diskmemload23:20:400
27817991937949,973cyclictest0-21swapper21:57:060
27817991912934,954cyclictest0-21swapper21:21:160
278179919121041,778cyclictest0-21swapper22:53:320
278179919071039,776cyclictest0-21swapper20:31:320
278179918821060,822cyclictest0-21swapper22:09:300
27817991857955,869cyclictest133750irq/9-eth023:41:460
278179918571045,720cyclictest0-21swapper22:48:310
278179918491056,793cyclictest0-21swapper19:44:280
278179918351055,780cyclictest0-21swapper00:24:590
27817991821947,850cyclictest31535-21ssh21:35:100
278179917511098,653cyclictest0-21swapper23:08:570
278179917441009,643cyclictest3950irq/9-acpi22:12:310
278179914521093,359cyclictest0-21swapper22:29:460
278179914431092,351cyclictest0-21swapper00:19:070
278179914411092,349cyclictest0-21swapper19:24:520
2781799931626,301cyclictest15167-21hwlatdetect-tra19:18:310
2781799887606,278cyclictest24684-21hwlatdetect-tra19:14:290
411822100,2sleep04119-21hwlatdetect-tra19:08:370
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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