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From: Scott Marlowe <scott.marlowe@gmail.com>
To: Dave Cramer <pg@fastcrypt.com>
Cc: Craig James <craig_james@emolecules.com>
Cc: Justin <justin@emproshunts.com>
Cc: Greg Smith <gsmith@gregsmith.com>
Cc: pgsql-performance@postgresql.org
Subject: Re: Benchmark: Dell/Perc 6, 8 disk RAID 10
Date: Sun, 16 Mar 2008 14:56:26 -0600
Message-ID: <dcc563d10803161356u5ea5e010m43824019eabd76af@mail.gmail.com> (raw)
In-Reply-To: <3CD2CF85-AD79-4500-95EE-57E6B2D01721@fastcrypt.com>
References: <f966c2ee0803052142l6a105678jfe2da92a0d9371@mail.gmail.com>
	<47DA1866.3050500@krogh.cc>
	<dcc563d10803132319u19480a4fn16115c415ee57844@mail.gmail.com>
	<47DA37E1.6050104@emproshunts.com>
	<Pine.GSO.4.64.0803140359220.20241@westnet.com>
	<47DA5852.30004@emproshunts.com>
	<47DCBBF9.1090401@emproshunts.com>
	<F38ADB71-8F77-41C8-9066-488FFCA7BD67@fastcrypt.com>
	<47DD6F4C.2050208@emolecules.com>
	<3CD2CF85-AD79-4500-95EE-57E6B2D01721@fastcrypt.com>

On Sun, Mar 16, 2008 at 1:36 PM, Dave Cramer <pg@fastcrypt.com> wrote:
>
>  On 16-Mar-08, at 3:04 PM, Craig James wrote:
>  > Just out of curiosity: Last time I did research, the word seemed to
>  > be that xfs was better than ext2 or ext3.  Is that not true?  Why
>  > use ext2/3 at all if xfs is faster for Postgres?
>  >
>  I would like to see the evidence of this. I doubt that it would be
>  faster than ext2. There is no journaling on ext2.

Well, if you're dropping a large table ext2/3 has that very long wait
thing that can happen.  Don't know how much battery backed cache would
help.



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