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Re: buffer cache -once again

From: Jonathan Lewis <jonathan_at_jlcomp.demon.co.uk>
Date: Mon, 12 May 2003 14:41:52 -0800
Message-ID: <F001.005973EA.20030512144152@fatcity.com>

Just a throwaway idea - if you set a 128K extent size (minimum extent length, or initial = next) on an 8K block size, then oracle would round up to the next multiple of 5 blocks - which would be 160K - viz 20 blocks.

Jonathan Lewis
http://www.jlcomp.demon.co.uk

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>
> This is on several SAP systems with DD managed extents.
>
> Std extent size? What's that? ;)
>
> I'll run it again to be sure, I could be misrembering the results.
>
> Jared
>
> On Sunday 11 May 2003 02:16, Niall Litchfield wrote:
> > No.
> >
> > On a SAN attached Compaq box at work I get 128, which with an 8k
block
> > size, is = 1mb or SSTIOMAX. My box at home has a max effective and
> > achieved MBRC of 64 (or 512k). 20 blocks isn't a standard extent
size
> > for you by any chance?
> >

-- 
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Author: Jonathan Lewis
  INET: jonathan_at_jlcomp.demon.co.uk

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Received on Mon May 12 2003 - 17:41:52 CDT

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