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2026-06-16 - 05:28
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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 highest latencies:
System rack6slot6 (updated Tue Jun 16, 2026 00:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
441799210908105438,105465cyclictest0-21swapper00:20:280
44179910757853456,54024cyclictest2099-21runrttasks20:37:140
44179910728553411,53781cyclictest0-21swapper23:43:070
44179910726853479,53692cyclictest2099-21runrttasks20:09:360
44179910703753415,53530cyclictest0-21swapper23:14:290
44179910703353380,53565cyclictest134850irq/9-eth000:14:560
44179910687553428,53383cyclictest9-21ksoftirqd/022:47:110
44179910681153343,53455cyclictest0-21swapper23:52:200
44179910671653443,53273cyclictest0-21swapper19:54:510
44179910666853436,53143cyclictest9-21ksoftirqd/022:03:590
44179910663453460,53174cyclictest0-21swapper22:42:400
44179910659953473,53126cyclictest0-21swapper20:23:500
44179910656953461,53108cyclictest0-21swapper22:21:030
44179910654953389,53095cyclictest0-21swapper23:38:460
44179910651253454,53058cyclictest0-21swapper22:34:070
44179910650653471,53035cyclictest0-21swapper00:03:530
44179910649553422,53073cyclictest0-21swapper22:13:310
44179910649053467,53023cyclictest0-21swapper22:57:040
44179910647553469,53006cyclictest0-21swapper22:36:480
44179910646053459,53001cyclictest0-21swapper19:28:340
44179910645553445,52920cyclictest9-21ksoftirqd/000:37:030
44179910645453470,52984cyclictest0-21swapper20:53:380
44179910644453441,53003cyclictest0-21swapper00:31:410
44179910643853396,53042cyclictest0-21swapper22:54:530
44179910630553428,52814cyclictest9-21ksoftirqd/020:28:410
44179910629753424,52809cyclictest9-21ksoftirqd/019:37:360
44179910626453390,52809cyclictest0-21swapper20:13:370
44179910622553476,52749cyclictest0-21swapper21:48:140
44179910618053454,52726cyclictest0-21swapper19:56:520
44179910614953438,52711cyclictest0-21swapper19:49:200
44179910614853394,52754cyclictest0-21swapper23:32:240
44179910614753436,52711cyclictest0-21swapper20:47:570
44179910613553434,52701cyclictest0-21swapper19:44:180
44179910611753422,52695cyclictest0-21swapper00:09:450
44179910534153039,52296cyclictest1684-21ssh21:53:560
44179910513653037,52097cyclictest0-21swapper23:07:170
44179910506952969,52098cyclictest0-21swapper21:15:450
4417995361825,53501cyclictest3950irq/9-acpi22:16:320
4417995341826,383cyclictest0-21swapper20:55:490
4417995339025,53365cyclictest0-21swapper20:00:130
4417995337325,53348cyclictest0-21swapper21:00:200
4417995330427,438cyclictest0-21swapper23:27:530
4417995315925,53041cyclictest0-21swapper23:18:100
4417995296027,52869cyclictest0-21swapper23:04:560
44179926211096,1371cyclictest11755-21ssh00:27:200
44179923861024,1238cyclictest15513-21ssh21:26:180
44179923341099,1111cyclictest2099-21runrttasks23:49:390
44179923101086,1095cyclictest2099-21runrttasks21:09:530
44179922431052,1065cyclictest1907-21snmpd21:58:170
44179921441042,1008cyclictest0-21swapper23:22:010
44179921431021,1084cyclictest5824-21ssh21:12:440
44179921011041,1039cyclictest0-21swapper22:06:090
44179920431019,1004cyclictest0-21swapper20:17:580
44179920311050,889cyclictest9710-21kworker/u2:221:30:090
44179919991024,853cyclictest0-21swapper22:25:350
4417991980985,960cyclictest0-21swapper20:32:020
4417991921932,969cyclictest0-21swapper23:56:310
44179918661012,763cyclictest3950irq/9-acpi21:39:410
4417991792944,809cyclictest2099-21runrttasks21:41:120
44179915601047,421cyclictest9-21ksoftirqd/020:42:350
44179915351044,425cyclictest9-21ksoftirqd/019:24:330
44179914991011,422cyclictest0-21swapper19:32:350
44179914681097,371cyclictest0-21swapper00:19:480
44179914461087,359cyclictest0-21swapper21:22:470
4417991230621,605cyclictest20032-21wc19:13:290
4417991221618,598cyclictest8583-21hwlatdetect-tra19:17:200
628211216,67sleep0911-21hwlatdetect-tra19:07:560
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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