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To: Pawel Jakub Dawidek <pjd@FreeBSD.org>
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From: Kenneth Vestergaard Schmidt <kvs@pil.dk>
Date: Tue, 22 May 2007 11:17:37 +0200
In-Reply-To: <20070522090947.GA3005@garage.freebsd.pl> (Pawel Jakub Dawidek's
	message of "Tue\, 22 May 2007 11\:09\:47 +0200")
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Cc: Craig Boston <craig@xfoil.gank.org>, freebsd-fs@freebsd.org,
	freebsd-current@freebsd.org, Kris Kennaway <kris@obsecurity.org>,
	Darren Reed <darrenr@freebsd.org>, Vince <jhary@unsane.co.uk>
Subject: Re: ZFS committed to the FreeBSD base.
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Pawel Jakub Dawidek <pjd@FreeBSD.org> writes:
>> I may reinstall at a later date as this is still very much a box to play
>> with, but I gather there is no great gain from going 64 bit other than
>> not having to play with PAE if you've got lots or RAM.
>
> I expect there is a huge difference in performance between i386 and
> amd64. I'm currently setting up environment to compare ZFS on
> FreeBSD/i386, FreeBSD/amd64 and Solaris.

I've had precious little time to do more testing on our amd64-setup, but
it seems that vm.kmem.size_max is a 32-bit uint, so we can't really use
much RAM for ZFS.

--=20
vh
Kenneth Schmidt
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