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Setting the shared buffers

This is a discussion on Setting the shared buffers within the Pgsql Performance forums, part of the PostgreSQL category; --> Hi, How should i set this configuration? Depending on the memory? And then is it necessary to perform a ...


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  #1 (permalink)  
Old 04-19-2008, 08:12 AM
Javier Somoza
 
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Default Setting the shared buffers


Hi,

How should i set this configuration? Depending on the
memory?
And then is it necessary to perform a benchmarking test?

What did you do?

Thx!



Javier Somoza
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  #2 (permalink)  
Old 04-19-2008, 08:12 AM
Claus Guttesen
 
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Default Re: Setting the shared buffers

>
> How should i set this configuration? Depending on the memory?
> And then is it necessary to perform a benchmarking test?



I've set it to 'shared_buffers = 12288' with 8 GB RAM on postgresql 7.4.9,
FreeBSD 6.0. There is no exact size, depends on type of workload, server-OS
etc. Adjust it up and down and see if your performance changes.

regards
Claus

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