Re: a need for speed -- RPG400-L

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Subject: Re: a need for speed
From: "Paul Morgan" <pmorgan@xxxxxxxxxxxxxx>
Date: Fri, 19 Aug 2005 10:45:59 -0400
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Joe,

My rule of thumb is about 20% random I/O is the same speed as 100%
sequential I/O with blocking.  The percentage depends on the size of the
index.  Smaller indexes would be more like 30% before you can get a
performance improvement by going to sequential processing.

Paul

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