RE: CPU COSTING
- From: K Gopalakrishnan <kaygopal@xxxxxxxxx>
- To: oracle-l@xxxxxxxxxxxxx
- Date: Fri, 23 Apr 2004 08:48:07 -0700 (PDT)
Waleed:
CPU Costing uses X$KCFIO (externalized by V$FILESTAT) to get the single
block and multiblock read times. It also uses number of single block
reads and number of multiblock reads in to consideration. It works at
system level.
KG
--- "Khedr, Waleed" <Waleed.Khedr@xxxxxxx> wrote:
> So the buffer cache has no impact on the stats.=20
>
> Was wondering how this system stats get calculated, it has to be =
> collected by the individual sessions themselves and then all the =
> collected numbers get summarized/correlated into one set of numbers =
> (system level).
>
> Waleed
>
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