Re: Taking the cache out of the equation? - Mailing list pgsql-sql

From Erik Jones
Subject Re: Taking the cache out of the equation?
Date
Msg-id 875976BE-CAC0-4F10-B7CC-0D651B109967@engineyard.com
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In response to Taking the cache out of the equation?  (Rob Sargent <robjsargent@gmail.com>)
Responses Re: Taking the cache out of the equation?  (Greg Stark <gsstark@mit.edu>)
List pgsql-sql
On Jun 9, 2009, at 10:51 AM, Rob Sargent wrote:

> Caching helps a *lot* and I'm thankful for that but I would like to  
> take it out of the picture as I massage my queries for better  
> performance.  Naturally the first invocation of the query cannot  
> take advantage of the cache and these queries would normally only be  
> called once for the same target data.    What tricks are there to  
> flush, ignore, circumvent the caching boost?  (Especially in the  
> production environment.)

Why on earth would you want your queries to always go to disk?

Erik Jones, Database Administrator
Engine Yard
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