Date: Mon, 31 Oct 2005 15:47:36 -0500 From: John Baldwin <jhb@freebsd.org> To: freebsd-current@freebsd.org 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? Message-ID: <200510311547.38014.jhb@freebsd.org> In-Reply-To: <20051029203436.GA12221@troutmask.apl.washington.edu> References: <4363A1B2.30603.18FC1576@localhost> <20051029202821.GA50470@xor.obsecurity.org> <20051029203436.GA12221@troutmask.apl.washington.edu>
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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
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