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2025-10-17 - 07:40
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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 Fri Oct 17, 2025 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2248499209829105318,104509cyclictest0-21swapper00:18:490
224849910730253392,53789cyclictest8786-21ssh22:32:490
224849910692753442,53485cyclictest0-21swapper19:49:320
224849910690253467,53435cyclictest30251-21ssh21:29:200
224849910677153439,53267cyclictest9-21ksoftirqd/023:21:330
224849910672953454,53182cyclictest9-21ksoftirqd/023:36:470
224849910655053448,53102cyclictest0-21swapper22:22:160
224849910650153473,53028cyclictest0-21swapper23:56:330
224849910650053395,53105cyclictest0-21swapper19:38:490
224849910649553466,53029cyclictest0-21swapper23:43:490
224849910648353460,53023cyclictest0-21swapper00:09:260
224849910647653461,53015cyclictest0-21swapper21:51:170
224849910647453414,53060cyclictest0-21swapper23:04:480
224849910647053445,52927cyclictest1016-21munin-node20:30:130
224849910646653451,53015cyclictest0-21swapper20:46:580
224849910646553410,53055cyclictest0-21swapper22:03:300
224849910645853473,52922cyclictest3950irq/9-acpi21:36:020
224849910643653390,53046cyclictest0-21swapper00:39:550
224849910642153458,52963cyclictest0-21swapper20:01:450
224849910642053429,52991cyclictest0-21swapper20:28:030
224849910641153423,52988cyclictest0-21swapper22:12:130
224849910639753417,52980cyclictest0-21swapper20:23:110
224849910632453396,52835cyclictest8042-21kworker/0:120:12:280
224849910630853408,52900cyclictest0-21swapper00:13:280
224849910630453407,52897cyclictest0-21swapper19:28:560
224849910629553400,52895cyclictest0-21swapper20:17:300
224849910629553386,52815cyclictest0-21swapper20:39:460
224849910622453473,52751cyclictest0-21swapper20:54:300
224849910621953471,52748cyclictest0-21swapper19:32:570
224849910621453469,52745cyclictest0-21swapper21:17:370
224849910620153462,52739cyclictest0-21swapper23:14:410
224849910618953462,52727cyclictest0-21swapper19:58:540
224849910618453453,52731cyclictest0-21swapper23:26:340
224849910618053404,52776cyclictest0-21swapper21:20:180
224849910617653410,52766cyclictest0-21swapper19:23:040
224849910616153402,52759cyclictest0-21swapper22:09:320
224849910613953432,52707cyclictest0-21swapper20:56:410
224849910576452946,52815cyclictest7784-21ssh23:16:410
224849910566352996,52664cyclictest15008-21ssh22:41:010
224849910541953160,52259cyclictest0-21swapper22:47:130
22484995394153377,474cyclictest0-21swapper21:00:520
2248499535516,53545cyclictest0-21swapper22:56:050
22484995352953378,151cyclictest0-21swapper20:07:570
22484995352827,0cyclictest0-21swapper00:23:510
22484995349953457,42cyclictest0-21swapper20:44:480
22484995336826,53342cyclictest0-21swapper21:57:490
224849924791104,1251cyclictest28682-21ssh23:46:000
224849924511083,1240cyclictest18123-21ssh23:31:050
224849924221105,1192cyclictest31457-21ssh21:31:410
224849922431082,1119cyclictest0-21swapper23:50:110
224849922371056,1088cyclictest3950irq/9-acpi21:13:560
224849921761019,1122cyclictest0-21swapper23:08:190
224849920651018,1047cyclictest0-21swapper21:42:440
224849920611046,979cyclictest11267-21ssh22:35:390
224849919311073,858cyclictest0-21swapper19:40:490
224849918641089,710cyclictest140749irq/7-s-b4300:27:520
224849917141078,636cyclictest0-21swapper21:07:540
224849917121021,628cyclictest3950irq/9-acpi21:47:460
224849917051032,673cyclictest0-21swapper00:31:330
224849916631055,608cyclictest0-21swapper22:18:550
224849916491042,607cyclictest0-21swapper00:02:240
224849916291063,502cyclictest22476-21cyclictest22:27:170
224849915671022,453cyclictest31429-21kworker/0:022:54:450
224849915341077,344cyclictest0-21swapper19:52:220
22484991095613,477cyclictest12186-21grep19:11:410
22484991068606,460cyclictest32191-21hwlatdetect-tra19:17:420
2363727117,29sleep023917-21hwlatdetect-tra19:08:110
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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