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2026-05-29 - 19:04
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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 29, 2026 12:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
172159910697353460,53449cyclictest5350irq/9-uhci_hcd:09:36:500
172159910675753457,53300cyclictest0-21swapper11:59:010
172159910664553428,53217cyclictest0-21swapper12:27:400
172159910661253416,53074cyclictest22926-21ssh12:16:260
172159910659453424,53074cyclictest2272-21munin-node08:30:210
172159910659353425,53103cyclictest0-21swapper10:37:180
172159910656853413,53155cyclictest0-21swapper08:43:350
172159910655553392,53099cyclictest9-21ksoftirqd/007:20:210
172159910652153393,53128cyclictest0-21swapper11:41:160
172159910651953477,53042cyclictest0-21swapper07:58:220
172159910651553475,53040cyclictest0-21swapper11:52:300
172159910651153423,53088cyclictest0-21swapper08:26:000
172159910649153468,53023cyclictest0-21swapper07:46:490
172159910646753472,52995cyclictest0-21swapper10:15:520
172159910646153450,53011cyclictest0-21swapper11:37:450
172159910645353405,53048cyclictest0-21swapper09:24:370
172159910645253404,53048cyclictest0-21swapper08:38:540
172159910643953459,52980cyclictest0-21swapper11:20:400
172159910643453393,53041cyclictest0-21swapper09:55:060
172159910643053433,52997cyclictest0-21swapper10:56:430
172159910640753427,52980cyclictest0-21swapper08:08:450
172159910632453421,52811cyclictest9-21ksoftirqd/008:16:170
172159910631253424,52825cyclictest9-21ksoftirqd/007:19:510
172159910622253474,52748cyclictest0-21swapper08:57:590
172159910621953474,52745cyclictest0-21swapper10:53:530
172159910621553474,52741cyclictest0-21swapper07:53:010
172159910619853445,52753cyclictest0-21swapper07:34:450
172159910619453454,52740cyclictest0-21swapper12:38:230
172159910618153472,52709cyclictest0-21swapper11:28:230
172159910617953456,52723cyclictest0-21swapper08:49:270
172159910616153403,52758cyclictest0-21swapper07:28:030
172159910615953446,52713cyclictest0-21swapper09:01:200
172159910610753416,52691cyclictest0-21swapper08:54:280
172159910600152911,53088cyclictest0-21swapper10:34:070
172159910591053281,52629cyclictest0-21swapper10:20:330
172159910588652943,52941cyclictest13703-21ssh10:27:550
172159910532853064,52261cyclictest7975-21sh11:05:460
172159910530453072,52224cyclictest0-21swapper12:33:410
172159910511953030,52087cyclictest0-21swapper12:23:180
172159910501752922,52093cyclictest0-21swapper11:04:360
17215995427327,54118cyclictest2272-21munin-node11:46:280
17215995360828,53460cyclictest0-21swapper09:48:540
17215995353819,53503cyclictest31633-21ssh09:19:150
17215995353025,0cyclictest0-21swapper09:44:430
17215995350124,409cyclictest0-21swapper09:27:180
17215995315524,53131cyclictest0-21swapper10:00:070
17215995278626,52760cyclictest0-21swapper08:02:130
172159925681094,1348cyclictest20770-21kworker/0:012:14:160
172159925151054,1308cyclictest25222-21diskmemload11:19:500
172159924021013,1264cyclictest25222-21diskmemload09:33:290
172159923101099,1118cyclictest21988-21kworker/u2:111:30:330
17215992126998,1077cyclictest23447-21ssh10:42:090
172159920671006,1026cyclictest0-21swapper12:04:030
17215992061981,1045cyclictest0-21swapper09:50:540
172159920351088,880cyclictest134850irq/9-eth011:13:280
172159920321003,992cyclictest26728-21ssh10:47:010
17215992022983,1005cyclictest0-21swapper12:07:340
17215992003980,1002cyclictest0-21swapper10:12:410
172159919941036,865cyclictest0-21swapper09:06:520
172159919561091,740cyclictest2272-21munin-node08:14:270
172159918531041,718cyclictest0-21swapper07:38:160
172159915841066,450cyclictest278482sleep007:41:270
172159915691043,433cyclictest0-21swapper07:10:080
172159914981010,421cyclictest0-21swapper09:13:040
172159914741041,367cyclictest0-21swapper08:22:090
172159914571096,361cyclictest0-21swapper10:09:000
16784259466,238sleep00-21swapper07:08:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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