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From: Scott Marlowe <scott.marlowe@gmail.com>
To: David Kerr <dmk@mr-paradox.net>
Cc: pgsql-performance@postgresql.org
Subject: Re: Very high effective_cache_size == worse performance?
Date: Tue, 20 Apr 2010 12:15:54 -0600
Message-ID: <u2odcc563d11004201115m7585abe3xf1e7116cd71423bf@mail.gmail.com> (raw)
In-Reply-To: <20100420173936.GA50886@mr-paradox.net>
References: <20100420173936.GA50886@mr-paradox.net>

On Tue, Apr 20, 2010 at 11:39 AM, David Kerr <dmk@mr-paradox.net> wrote:
> Howdy all,
>
> I've got a huge server running just postgres. It's got 48 cores and 256GB of ram. Redhat 5.4, Postgres 8.3.9.
> 64bit OS. No users currently.

What's your IO subsystem look like?  What did vmstat actually say?



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