Re: Potential memory usage issue - Mailing list pgsql-performance

From David Brain
Subject Re: Potential memory usage issue
Date
Msg-id 4602AF1E.8000601@bandwidth.com
Whole thread Raw
In response to Re: Potential memory usage issue  (Bill Moran <wmoran@collaborativefusion.com>)
Responses Re: Potential memory usage issue  (Bill Moran <wmoran@collaborativefusion.com>)
List pgsql-performance
Bill Moran wrote:

>
> Install the pg_bufferstats contrib module and take a look at how shared
> memory is being use.  I like to use MRTG to graph shared buffer usage
> over time, but you can just do a SELECT count(*) WHERE NOT NULL to see
> how many buffers are actually in use.
>

Can you explain what you'd use as a diagnostic on this - I just
installed the module - but I'm not entirely clear as to what the output
is actually showing me and/or what would be considered good or bad.

Thanks,

David.
--
David Brain - bandwidth.com
dbrain@bandwidth.com

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