Re: what is "kfk: async disk IO"?
- From: Dion Cho <ukja.dion@xxxxxxxxx>
- To: martin.a.berger@xxxxxxxxx
- Date: Tue, 7 Dec 2010 18:02:14 +0900
Just for clarity, do you use ASM for this database?
================================
Dion Cho - Oracle Performance Storyteller
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2010/12/7 Martin Berger <martin.a.berger@xxxxxxxxx>
> Hi,
>
> can anyone please hint me to some information about
> kfk: async disk IO ?
>
> A little query on v$sessions gave me
> USERNAME EVENT COUNT(*)
> ------------------------------
> -------------------------------------------------- ----------
> APPS ges message buffer allocation 98
> APPS CSS operation: action 2
> APPS Streams AQ: waiting for messages in the queue 9
> SYS SQL*Net message to client 1
> APPS SQL*Net message from client 147
> APPS kfk: async disk IO 1646
>
> as kfk: async disk IO is the bigest contributor, I'd like to investigate a
> little bit.
>
> for the records: 11.2.0.1 - 2 node RAC - RedHat 5.4 Linux 64-bit. (yes,
> it's EBS - but don't ask me the exact pach level, please - I assume
> 11.5.10???)
>
> thnx
> Martin
>
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