Well, I guess I could have added a :) after my request on how
to fix the hit ratio, but it wouldn't be nearly as much fun.
On Sun, 2003-12-21 at 03:29, Mogens Nørgaard wrote:
> Ah yes, you could introduce heuristically (spelling?!) skewed hit
> ratios. As Dave Ensor explained at UKOUG, the word "heuristic" in
> Oracle's optimizer code can be translated directly into "constant". So
> add a number here or there until it fits.
>
> Mogens
>
> Jonathan Lewis wrote:
>
> >Easy,
> >
> >A new formula for the hit ratio
> >
> >
> >Regards
> >
> >Jonathan Lewis
> >http://www.jlcomp.demon.co.uk
> >
> > The educated person is not the person
> > who can answer the questions, but the
> > person who can question the answers -- T. Schick Jr
> >
> >
> >One-day tutorials:
> >http://www.jlcomp.demon.co.uk/tutorial.html
> >
> >
> >Three-day seminar:
> >see http://www.jlcomp.demon.co.uk/seminar.html
> >____UK___November
> >
> >
> >The Co-operative Oracle Users' FAQ
> >http://www.jlcomp.demon.co.uk/faq/ind_faq.html
> >
> >
> >----- Original Message -----
> >To: "Multiple recipients of list ORACLE-L" <ORACLE-L_at_fatcity.com>
> >Sent: Sunday, December 21, 2003 1:19 AM
> >
> >
> >Actually, it isn't SAP. I was simply creating a set of MV's
> >based on SAP tables in another database.
> >
> >The script I was running is used to keep track of how much
> >IO is going on, just to ensure that everything is still
> >working during the build. Once the physical IO exceeds
> >the logical IO, the HR goes negative.
> >
> >I wonder what I need to tune to fix this?
> >
> >Jared
> >
> >
> >
> >
>
> --
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Author: Jared Still
INET: jkstill_at_cybcon.com
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Received on Mon Dec 22 2003 - 01:29:25 CST
