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Re: Physical I/O and databases other than oracle

From: Mladen Gogala <mladen_at_wangtrading.com>
Date: Thu, 02 Oct 2003 08:34:33 -0800
Message-ID: <F001.005D1D36.20031002083433@fatcity.com>


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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Author: Mladen Gogala
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Received on Thu Oct 02 2003 - 11:34:33 CDT

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