Re: Physical I/O and databases other than oracle

I do accept your suggestion but I've just received Cary's book and I'm enjoying myself very much. I do humbly apologize for any confusion. To make is perfectly clear to anyone, BCHR is no longer very relevant indicator. My last sentence ("database with BCHR 99.9% must be OK") was formulated in that way as an allusion to Cary Milsap's known article "Why 99% Database Buffer Cache Hit Ratio is NOT Ok". I was just poking little harmless fun at the "silver bullet" approach.

On Thu, 2003-10-02 at 12:49, Thomas Day wrote:
> How about a tongue-in-cheek smiley (>) to indicate that the following
> advice is offered ironically and is not to be followed. Sort of like the
> hidden parameter _SET_RUN_FASTER=TRUE. We are always getting new members
> and they may not be aware of previous threads.
>
>
>
>
> Mladen Gogala
> <mladen To: Multiple recipients of list ORACLE-L <ORACLE-L_at_fatcity.com>
> @wangtrading.com cc:
> > Subject: Re: Physical I/O and databases other than oracle
> Sent by:
> ml-errors
>
>
> 10/02/2003 12:34
> PM
> Please respond
> to ORACLE-L
>
>
>
>
>
>
> On Thu, 2003-10-02 at 11:44, Garry Gillies wrote:
> > > Im reading an academic book on databases and it states that Physical
> I/O
>
> > Eh?
> > What IS the primary bottleneck in tuning Oracle?
>
> Cache hit ratio. You tune the buffer cache hit ratio (BCHR) and your job
> is done. Database with 99.9% BCHR must be OK.
>
>
>
>
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Note:
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