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2025-12-10 - 03:21
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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 Wed Dec 10, 2025 00:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
233659910699753427,53474cyclictest6235-21ssh00:01:440
233659910673653417,53223cyclictest8257-21diskmemload22:22:350
233659910665753473,53119cyclictest0-21swapper20:20:300
233659910650653456,53050cyclictest0-21swapper21:12:050
233659910649253467,53025cyclictest0-21swapper20:11:480
233659910648353465,53018cyclictest0-21swapper22:08:510
233659910647953417,53062cyclictest0-21swapper21:59:290
233659910647053415,53055cyclictest0-21swapper21:40:330
233659910646453391,52984cyclictest20904-21kworker/0:221:33:410
233659910645553462,52993cyclictest0-21swapper00:36:040
233659910644953429,53020cyclictest0-21swapper21:48:560
233659910644853431,53017cyclictest0-21swapper22:25:560
233659910624353443,52800cyclictest0-21swapper20:19:400
233659910622753473,52754cyclictest0-21swapper20:37:450
233659910620253456,52746cyclictest0-21swapper19:50:010
233659910619953444,52755cyclictest0-21swapper00:21:500
233659910619453421,52773cyclictest0-21swapper19:19:230
233659910619053474,52716cyclictest0-21swapper21:06:340
233659910616853443,52725cyclictest0-21swapper20:44:370
233659910616653445,52721cyclictest0-21swapper22:53:340
233659910616053401,52759cyclictest0-21swapper00:31:430
233659910615053441,52709cyclictest0-21swapper22:11:520
233659910612653429,52697cyclictest0-21swapper23:03:470
233659910612153422,52699cyclictest0-21swapper19:23:240
233659910596653361,52581cyclictest31170-21ssh23:08:390
233659910582952950,52877cyclictest17684-21ssh23:34:160
233659910580253036,52764cyclictest8116-21ssh22:36:500
233659910516753071,52094cyclictest0-21swapper23:42:490
233659910512153026,52093cyclictest0-21swapper23:57:430
233659910508252964,52116cyclictest0-21swapper00:08:360
23365995353327,53413cyclictest0-21swapper00:10:570
23365995339129,53270cyclictest0-21swapper22:44:320
23365995321527,0cyclictest0-21swapper20:57:310
23365995316125,0cyclictest0-21swapper19:57:440
23365995313127,53039cyclictest3950irq/9-acpi21:19:270
23365995310926,53083cyclictest0-21swapper19:42:190
23365995274627,52719cyclictest0-21swapper19:39:380
233659950212588,2395cyclictest2739-21devkit-power-da21:20:380
233659925281089,1340cyclictest28356-21ssh21:36:120
233659925231103,1295cyclictest15911-21ssh22:47:430
233659924441070,1251cyclictest9-21ksoftirqd/023:38:170
233659923481025,859cyclictest0-21swapper23:18:210
233659922471072,1053cyclictest8257-21diskmemload22:34:090
233659922391012,1227cyclictest17905-21ssh00:18:090
233659922251087,1043cyclictest133750irq/9-eth022:03:300
233659921311035,1063cyclictest0-21swapper21:50:360
233659921051091,914cyclictest24157-21munin-node20:30:130
23365992009932,1040cyclictest1569-21ssh23:12:000
233659919911033,864cyclictest0-21swapper22:57:350
233659919391040,805cyclictest0-21swapper19:12:110
233659919291033,804cyclictest0-21swapper20:47:180
23365991904925,956cyclictest0-21swapper23:22:020
233659918971032,772cyclictest0-21swapper20:05:360
23365991865955,876cyclictest0-21swapper00:28:120
233659918521070,658cyclictest27303-21ssh23:46:300
233659918341013,729cyclictest3950irq/9-acpi23:28:440
233659918261087,739cyclictest0-21swapper19:45:300
23365991780935,810cyclictest27036-21ssh22:19:240
23365991772921,831cyclictest0-21swapper23:54:020
233659916701098,481cyclictest9-21ksoftirqd/019:25:340
233659916401098,449cyclictest0-21swapper21:28:500
233659916351073,562cyclictest0-21swapper20:28:430
23365991577755,819cyclictest0-21swapper20:55:000
233659914861003,418cyclictest0-21swapper20:04:560
233659914611097,364cyclictest0-21swapper21:00:520
233659914571095,362cyclictest0-21swapper19:31:460
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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