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From: Scott Marlowe <scott.marlowe@gmail.com>
To: David Kerr <dmk@mr-paradox.net>
Cc: Nikolas Everett <nik9000@gmail.com>
Cc: Robert Haas <robertmhaas@gmail.com>
Cc: pgsql-performance@postgresql.org
Subject: Re: Very high effective_cache_size == worse performance?
Date: Tue, 20 Apr 2010 13:24:34 -0600
Message-ID: <h2xdcc563d11004201224wc7471e0dx335ab345d37f04ca@mail.gmail.com> (raw)
In-Reply-To: <20100420182832.GB53489@mr-paradox.net>
References: <20100420173936.GA50886@mr-paradox.net>
	<h2w603c8f071004201044tbc8ce8fenb846b7643a2b9376@mail.gmail.com>
	<20100420180351.GA51940@mr-paradox.net>
	<w2ld4e11e981004201112v3571f350zaaa0112d1e035097@mail.gmail.com>
	<20100420182030.GA53489@mr-paradox.net>
	<j2qdcc563d11004201123u21219445v4a9129ee7d7b520b@mail.gmail.com>
	<20100420182832.GB53489@mr-paradox.net>

On Tue, Apr 20, 2010 at 12:28 PM, David Kerr <dmk@mr-paradox.net> wrote:
> On Tue, Apr 20, 2010 at 12:23:51PM -0600, Scott Marlowe wrote:
> - So are you logging to the same drive that has pg_xlog and your
> - data/base directory on this machine?
> -
>
> the db, xlog and logs are all on separate areas of the SAN.
>
> separate I/O controllers, etc on the SAN. it's setup well, I wouldn't expect
> contention there.

Same xkb/s gigabit connection?



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