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From: Josh Berkus <josh@agliodbs.com>
To: pgsql-performance@postgresql.org
Subject: Re: Need help with 8.4 Performance Testing
Date: Thu, 11 Dec 2008 12:05:08 -0800
Message-ID: <49417274.90408@agliodbs.com> (raw)
In-Reply-To: <87y6ypijsl.fsf@oxford.xeocode.com>
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> I would expect higher shared_buffers to raise the curve before the first
> breakpoint but after the first breakpoint make the drop steeper and deeper.
> The equilibrium where the curve becomes flatter should be lower.

On SpecJAppserver specifically, I remember seeing a drop when the 
database size grew beyond the size of shared_buffers.

--Josh

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