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2026-01-08 - 14:13
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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 376 highest latencies:
System rack6slot6 (updated Thu Jan 08, 2026 00:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
94189910698353472,53414cyclictest5712-21diskmemload22:00:500
94189910697653421,53459cyclictest2099-21runrttasks20:06:170
94189910688053432,53448cyclictest0-21swapper00:21:010
94189910678853439,53283cyclictest0-21swapper23:01:280
94189910669453414,53280cyclictest0-21swapper21:31:520
94189910668553426,53170cyclictest9409-21cyclictest22:32:090
94189910666153430,53142cyclictest9-21ksoftirqd/020:24:020
94189910664253395,53184cyclictest3950irq/9-acpi00:33:140
94189910657853464,53114cyclictest0-21swapper00:19:000
94189910656953469,53100cyclictest0-21swapper23:08:400
94189910653953462,53077cyclictest0-21swapper00:37:050
94189910653553382,53062cyclictest0-21swapper21:22:290
94189910651253474,53038cyclictest0-21swapper22:49:540
94189910651253384,53062cyclictest0-21swapper20:53:010
94189910650253421,53016cyclictest9-21ksoftirqd/019:42:400
94189910647053414,53056cyclictest0-21swapper23:41:290
94189910646853460,53008cyclictest0-21swapper23:39:290
94189910645053448,53002cyclictest0-21swapper23:18:120
94189910643953442,52997cyclictest0-21swapper21:05:540
94189910641953432,52987cyclictest0-21swapper22:10:030
94189910629453418,52812cyclictest9-21ksoftirqd/020:02:260
94189910622453474,52750cyclictest0-21swapper21:01:330
94189910622153473,52748cyclictest0-21swapper19:54:140
94189910621753472,52745cyclictest0-21swapper20:57:220
94189910620753439,52768cyclictest0-21swapper19:37:190
94189910616253446,52716cyclictest0-21swapper22:21:460
94189910615153443,52708cyclictest0-21swapper19:26:060
94189910613553446,52689cyclictest0-21swapper22:28:480
94189910613553432,52703cyclictest0-21swapper19:31:370
94189910612353426,52697cyclictest0-21swapper20:36:460
94189910612153036,53083cyclictest0-21swapper21:35:530
94189910610753021,53084cyclictest0-21swapper21:17:280
94189910604952963,53084cyclictest0-21swapper19:45:310
94189910580953259,52550cyclictest0-21swapper23:49:210
94189910515953057,52097cyclictest0-21swapper22:44:130
94189910512953022,52106cyclictest0-21swapper22:53:550
94189910512153022,52097cyclictest0-21swapper00:12:380
94189910511253007,52103cyclictest0-21swapper21:58:290
94189910504352934,52107cyclictest0-21swapper22:09:130
94189910504052928,52110cyclictest0-21swapper23:34:170
94189910501752918,52097cyclictest0-21swapper21:25:300
9418995347226,0cyclictest0-21swapper21:13:260
9418995344424,53420cyclictest0-21swapper21:53:580
9418995334026,0cyclictest3950irq/9-acpi22:35:500
9418995330526,489cyclictest0-21swapper20:40:370
9418995311827,0cyclictest9-21ksoftirqd/021:41:140
94189926181085,1406cyclictest13197-21rm22:58:470
94189924531099,1289cyclictest134850irq/9-eth000:01:550
94189924191052,1268cyclictest18123-21ssh22:19:560
94189922031042,1062cyclictest31293-21ssh23:25:040
94189921461049,1007cyclictest3950irq/9-acpi00:05:060
94189920121030,861cyclictest0-21swapper23:22:030
94189919791031,911cyclictest18402-21ssh23:52:020
94189918541073,689cyclictest5350irq/9-uhci_hcd:23:14:510
9418991836882,929cyclictest22644-21ssh23:58:340
94189917001094,515cyclictest9-21ksoftirqd/020:45:480
94189916981075,623cyclictest0-21swapper20:12:290
94189915651045,452cyclictest0-21swapper19:59:550
9418991554736,810cyclictest0-21swapper00:29:530
94189915251094,431cyclictest0-21swapper20:30:040
94189914751102,373cyclictest0-21swapper20:26:330
94189914701098,372cyclictest0-21swapper20:18:100
94189914561095,361cyclictest0-21swapper21:46:360
94189914501092,358cyclictest0-21swapper19:23:250
9418991220577,641cyclictest0-21swapper19:12:120
9418991144580,560cyclictest18962-21memory19:15:220
316428019,33sleep03456-21hwlatdetect-tra19:07:470
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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