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2026-04-13 - 14:12
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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 100 highest latencies:
System rack6slot6 (updated Mon Apr 13, 2026 00:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1813099210593105425,105165cyclictest27793-21ssh22:33:280
181309910678153466,53315cyclictest0-21swapper21:39:220
181309910666053473,53123cyclictest9-21ksoftirqd/022:16:020
181309910659153468,53123cyclictest0-21swapper19:57:230
181309910647553454,53021cyclictest0-21swapper23:21:110
181309910647253438,53034cyclictest0-21swapper21:32:500
181309910645853468,52990cyclictest0-21swapper23:46:390
181309910645853448,53010cyclictest0-21swapper22:27:460
181309910635253388,52899cyclictest0-21swapper23:33:450
181309910626753420,52756cyclictest0-21swapper20:47:070
181309910620653466,52740cyclictest0-21swapper21:05:520
181309910620353472,52731cyclictest0-21swapper20:22:100
181309910616753407,52760cyclictest0-21swapper19:44:390
181309910615453400,52754cyclictest0-21swapper19:39:270
181309910547752959,52516cyclictest6853-21ssh21:16:050
181309910545553190,52265cyclictest0-21swapper23:16:000
181309910537453014,52358cyclictest3175-21ssh21:57:570
181309910527552963,52310cyclictest25091-21ssh00:02:330
18130995368731,53529cyclictest13834-21ssh00:33:120
18130995353026,53412cyclictest0-21swapper23:58:120
18130995352826,0cyclictest0-21swapper00:19:380
18130995316127,0cyclictest0-21swapper20:31:020
18130995284729,52818cyclictest0-21swapper20:12:270
181309955172791,2723cyclictest2679-21devkit-power-da19:33:160
181309949462599,2344cyclictest2679-21devkit-power-da23:36:160
181309924801094,1259cyclictest23939-21ssh23:14:590
181309923421067,1207cyclictest3950irq/9-acpi23:26:330
181309923291016,1187cyclictest2790-21gnome-settings-00:11:460
181309923131016,1174cyclictest10199-21ssh00:27:500
181309923111075,1107cyclictest1607-21diskmemload21:25:380
181309922541063,1065cyclictest29798-21runrttasks20:59:300
181309922161045,1043cyclictest2099-21runrttasks22:10:010
181309922091093,1026cyclictest3950irq/9-acpi22:04:090
181309921051087,890cyclictest2687-21gconfd-221:04:220
181309920741050,957cyclictest134850irq/9-eth021:11:340
181309920611000,1022cyclictest18662-21ssh23:06:070
18130992020983,1003cyclictest0-21swapper21:51:350
181309920091094,823cyclictest5350irq/9-uhci_hcd:20:35:330
18130991994968,988cyclictest13793-21ssh22:13:220
181309919761004,879cyclictest3950irq/9-acpi23:02:460
181309919461042,812cyclictest0-21swapper21:49:150
181309919411041,808cyclictest0-21swapper20:29:320
18130991937935,968cyclictest0-21swapper22:52:530
181309919321035,805cyclictest0-21swapper00:35:230
18130991926936,953cyclictest3153-21ssh22:45:010
18130991916925,977cyclictest0-21swapper23:43:580
181309919011005,772cyclictest2099-21runrttasks22:49:120
181309918781052,733cyclictest0-21swapper19:46:390
181309918561082,651cyclictest1828-21hald-addon-acpi22:23:450
181309917371029,383cyclictest0-21swapper19:25:530
181309916911094,597cyclictest0-21swapper20:54:490
18130991682912,733cyclictest29183-21ssh00:08:550
181309916551048,607cyclictest0-21swapper21:24:170
181309916241098,526cyclictest0-21swapper20:19:490
181309916201096,457cyclictest0-21swapper20:42:150
181309915251006,453cyclictest0-21swapper19:50:510
18130991503673,827cyclictest0-21swapper22:58:150
181309914811024,421cyclictest6437-21ssh00:22:090
181309914531094,359cyclictest0-21swapper23:51:400
181309914481024,424cyclictest0-21swapper22:38:090
181309914271022,405cyclictest0-21swapper21:43:230
181309914241077,347cyclictest0-21swapper20:08:560
18130991178616,558cyclictest11142-21grep19:19:010
18130991155531,622cyclictest0-21swapper19:24:430
18130991152600,546cyclictest28071-21hwlatdetect-tra19:13:100
18130991108484,622cyclictest0-21swapper20:02:540
327721850,2sleep03278-21hwlatdetect-tra19:07:120
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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