Date: Fri, 10 Dec 2004 22:16:12 +0100 From: Wilko Bulte <wb@freebie.xs4all.nl> To: "Greg A. Woods" <woods@weird.com> Cc: freebsd-alpha@freebsd.org Subject: Re: FYI, no-go with booting FreeBSD-5.3 on AlphaServer ES40 Message-ID: <20041210211612.GA90601@freebie.xs4all.nl> In-Reply-To: <m1CcrzH-0024gJC@building.weird.com> References: <m1CcZTT-0024g4C@building.weird.com> <20041210202803.GI90137@freebie.xs4all.nl> <m1CcrzH-0024gJC@building.weird.com>
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On Fri, Dec 10, 2004 at 04:07:39PM -0500, Greg A. Woods wrote.. > [ On Friday, December 10, 2004 at 21:28:03 (+0100), Wilko Bulte wrote: ] > > Subject: Re: FYI, no-go with booting FreeBSD-5.3 on AlphaServer ES40 > > > > FreeBSD does not even support 4GB so don't moan... :-P > > Sigh.... > > Any ES40 with fewer than 4 memory options installed (i.e. 8GB _minimum_) > is a huge waste of space, energy, and money. With just 2 RAM options > installed (i.e. 4GB minimum), the machine is way under-utilized and can > only achieve 1/2 its memory throughput. With just one RAM option > installed (i.e. 2GB minimum), the machine crawls at 1/4 its potential > memory throughput. > > There are many better, faster, cheaper, smaller, types of systems > available if one does not need to break the 4GB 32-bit address space > boundary. I know. Feel free to fix it. > I.e. I guess FreeBSD doesn't really truly support the ES40 (or anything > bigger) at all. You should definitely not list them as supported! I'm That is bull, as I did run FreeBSD on the ES40 at work. Briefly, as it is not my machine. > sure anyone else familiar with Alphas would make the same assumption as You should not make assumptions, it is documented that dependent on the machine model the limit is 1 or 2GB for FreeBSD. > I have that the full RAM configurations of any supported machine would > work -- that's the whole reason for wanting a 64-bit address space in > the first place! Yep, it would be very nice. > > But surely not on 16G RAM. > > BUT, that's only half-way to where we want to go with 32GB installed... Go and run Tru64 for a UNIX that makes full use of the ES40. None of the *BSD or Linux will if you look at it more or less closely. -- Wilko Bulte wilko@FreeBSD.org
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