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From: John Baldwin <jhb@freebsd.org>
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Date: Mon, 31 Oct 2005 15:47:36 -0500
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Cc: Dan Langille <dan@langille.org>,
	Steve Kargl <sgk@troutmask.apl.washington.edu>,
	Kris Kennaway <kris@obsecurity.org>
Subject: Re: amd64 6% slower than i386?
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On Saturday 29 October 2005 04:34 pm, Steve Kargl wrote:
> On Sat, Oct 29, 2005 at 04:28:21PM -0400, Kris Kennaway wrote:
> > On Sat, Oct 29, 2005 at 04:22:10PM -0400, Dan Langille wrote:
> > > Build world is consistly 6% slower running an amd64 world than an
> > > i386 world.
> > >
> > > In both cases, I'm using the default install of 6.0 RC-1 on the same
> > > AMD 64 3000+ with 1GB of RAM.  I'm finding that build world takes 48
> > > minutes under i386 and 51 minutes under amd64.
> > >
> > > Is this expected?
> >
> > You're comparing two different things (different compilers, some
> > amount of different code being compiled), so you shouldn't expect them
> > to be the same.
>
> He also may be building lib32 on amd64.

Yep, that is on by default.

-- 
John Baldwin <jhb@FreeBSD.org>  <><  http://www.FreeBSD.org/~jhb/
"Power Users Use the Power to Serve"  =  http://www.FreeBSD.org