Re: tuning on ec2 - Mailing list pgsql-performance

From Robert Haas
Subject Re: tuning on ec2
Date
Msg-id BANLkTimT+4z2AyNVaeZGD0epk08+eHWnrw@mail.gmail.com
Whole thread Raw
In response to tuning on ec2  (Joel Reymont <joelr1@gmail.com>)
Responses Re: tuning on ec2  (Josh Berkus <josh@agliodbs.com>)
List pgsql-performance
On Tue, Apr 26, 2011 at 11:15 AM, Joel Reymont <joelr1@gmail.com> wrote:
> I'm running pgsql on an m1.large EC2 instance with 7.5gb available memory.
>
> The free command shows 7gb of free+cached. My understand from the docs is that I should dedicate 1.75gb to
shared_buffers(25%) and set effective_cache_size to 7gb. 

Sounds like a reasonable starting point.  You could certainly fiddle
around a bit - especially with shared_buffers - to see if some other
setting works better, but that should be in the ballpark.

--
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company

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