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2025-07-13 - 12:12
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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, lowest P state: performance
Characteristics of the 20 highest latencies:
System rack5slot0.osadl.org (updated Sun Jul 13, 2025 00:44:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2341421680,4sleep3863499cyclictest23:31:003
3200121590,1sleep3863499cyclictest00:31:133
418421450,3sleep0862899cyclictest22:38:590
418421450,3sleep0862899cyclictest22:38:590
924721430,3sleep2863399cyclictest23:20:172
1528321420,0sleep215280-21sshd21:49:352
922821360,0sleep19213-21sshd00:35:521
191821340,3sleep31847-21nfsd23:10:123
1419921330,1sleep014200-21bash23:17:390
970521310,2sleep19702-21sshd23:17:121
3009121270,4sleep1863299cyclictest21:28:371
1673621250,1sleep016730-21sshd23:08:290
704221220,4sleep1863299cyclictest00:18:121
3062221220,2sleep2863399cyclictest23:54:282
2509421190,0sleep00-21swapper/021:34:370
2488021130,2sleep10-21swapper/123:31:111
1792421110,1sleep03-21ksoftirqd/000:36:510
1067421060,2sleep10-21swapper/123:36:151
2361521050,4sleep1863299cyclictest23:27:581
580921000,1sleep20-21swapper/221:23:052
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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