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2026-05-15 - 10:49
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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 Fri May 15, 2026 00:43:36)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2360999209913105365,104546cyclictest0-21swapper20:32:170
236099910711453473,53544cyclictest16849-21ssh23:44:020
236099910711353412,53636cyclictest28206-21kworker/u2:123:14:430
236099910710353457,53581cyclictest134850irq/9-eth022:46:150
236099910709453440,53531cyclictest14759-21ssh22:53:170
236099910679453459,53237cyclictest2099-21runrttasks20:14:010
236099910671953475,53152cyclictest0-21swapper20:52:520
236099910667453455,53148cyclictest134850irq/9-eth021:26:020
236099910664553464,53181cyclictest0-21swapper23:58:360
236099910659653460,53046cyclictest9-21ksoftirqd/023:31:580
236099910654553414,53131cyclictest0-21swapper22:02:430
236099910649653467,53029cyclictest0-21swapper19:27:580
236099910648753480,53007cyclictest0-21swapper20:37:280
236099910647953416,53063cyclictest0-21swapper23:37:500
236099910645653448,53008cyclictest0-21swapper21:51:290
236099910645453449,53005cyclictest0-21swapper23:01:400
236099910643653457,52979cyclictest0-21swapper21:12:180
236099910637153472,52899cyclictest0-21swapper20:24:540
236099910634153384,52893cyclictest0-21swapper23:27:270
236099910631853478,52776cyclictest9-21ksoftirqd/023:47:430
236099910631753445,52872cyclictest0-21swapper19:36:000
236099910631153442,52869cyclictest0-21swapper20:43:300
236099910630353397,52813cyclictest0-21swapper20:09:200
236099910627753424,52853cyclictest0-21swapper19:48:240
236099910627053428,52774cyclictest0-21swapper20:29:460
236099910621553468,52747cyclictest0-21swapper19:56:260
236099910620953394,52815cyclictest0-21swapper20:46:210
236099910618653442,52709cyclictest0-21swapper21:36:350
236099910616053403,52757cyclictest0-21swapper00:24:030
236099910615353439,52714cyclictest0-21swapper20:56:130
236099910615353401,52752cyclictest0-21swapper19:19:260
236099910614853395,52753cyclictest0-21swapper19:30:390
236099910597052928,53040cyclictest0-21swapper00:26:040
236099910595253407,52545cyclictest0-21swapper23:17:140
236099910589353374,52519cyclictest0-21swapper00:11:300
236099910508152978,52101cyclictest0-21swapper00:32:560
236099910507452962,52110cyclictest0-21swapper21:33:040
236099910504652968,52075cyclictest25720-21sh22:21:280
23609995355953383,176cyclictest0-21swapper20:16:220
23609995344226,53294cyclictest0-21swapper22:28:300
23609995338527,53265cyclictest134850irq/9-eth000:05:480
23609995315726,53131cyclictest0-21swapper21:09:170
23609995309126,0cyclictest0-21swapper22:42:240
23609995279224,52768cyclictest0-21swapper19:53:250
236099939172204,1701cyclictest2679-21devkit-power-da19:23:070
236099923551048,1213cyclictest9-21ksoftirqd/022:10:550
236099922801097,1084cyclictest12100-21munin-node20:00:170
236099921771044,1010cyclictest2099-21runrttasks23:05:210
236099921741036,1013cyclictest23511-21ssh23:53:440
236099921201025,972cyclictest32434-21rm22:31:110
236099920511020,996cyclictest0-21swapper22:08:240
236099920411026,921cyclictest134850irq/9-eth000:38:170
23609992029986,1008cyclictest0-21swapper21:04:460
23609991999996,967cyclictest4923-21ssh22:39:130
23609991975982,959cyclictest7246-21ssh00:16:510
236099919001025,809cyclictest23604-21cyclictest21:48:280
236099918751096,657cyclictest10263-21ssh21:59:520
236099918551024,796cyclictest23383-21ssh22:18:470
236099918551023,794cyclictest28919-21ssh00:00:460
236099917401004,698cyclictest2759-21ssh23:22:560
23609991665928,700cyclictest31504-21ssh21:42:570
236099916631078,585cyclictest0-21swapper21:18:400
236099916491103,457cyclictest23604-21cyclictest21:21:310
236099916211095,526cyclictest0-21swapper19:12:230
236099916201097,523cyclictest0-21swapper19:42:420
236099915901081,509cyclictest0-21swapper22:58:080
23028271736,208sleep00-21swapper19:07:120
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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