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2026-04-29 - 15:40
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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 20 highest latencies:
System rack6slot6 (updated Wed Apr 29, 2026 12:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1101399210021105389,104630cyclictest134850irq/9-eth011:02:400
110139910694053411,53404cyclictest16875-21ssh12:04:280
110139910684653460,53386cyclictest21361-21ssh12:10:200
110139910675753470,53197cyclictest10999-21cyclictest10:27:500
110139910675653424,53208cyclictest32169-21ssh11:39:010
110139910669153484,53187cyclictest134850irq/9-eth008:19:430
110139910664853436,53212cyclictest0-21swapper10:51:370
110139910664653432,53150cyclictest10999-21cyclictest07:28:290
110139910664553438,53110cyclictest1907-21snmpd07:36:510
110139910663653479,53060cyclictest10866-21sh10:19:180
110139910656153447,53114cyclictest0-21swapper10:44:150
110139910654653409,53072cyclictest5350irq/9-uhci_hcd:12:16:420
110139910654053398,53142cyclictest0-21swapper08:14:020
110139910650953376,53109cyclictest23955-21ssh10:38:330
110139910650153468,53033cyclictest0-21swapper07:45:240
110139910647253457,53015cyclictest0-21swapper11:52:050
110139910644753438,53009cyclictest0-21swapper08:33:070
110139910643853438,53000cyclictest0-21swapper10:01:030
110139910643153466,52965cyclictest0-21swapper09:21:210
110139910643053433,52997cyclictest0-21swapper08:36:380
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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