Date: Wed, 05 Feb 2014 09:09:31 -0500 From: George Mitchell <george+freebsd@m5p.com> To: freebsd-hackers@freebsd.org Subject: Re: opteron a1100 arm Message-ID: <52F2461B.1070405@m5p.com> In-Reply-To: <DCE7B22A-D51F-471A-B446-4B76D87E775D@netgate.com> References: <alpine.BSF.2.00.1401311911120.2427@wojtek.tensor.gdynia.pl> <1391538649.19169.79261269.3C5F49D1@webmail.messagingengine.com> <CAFU734xXWyc_TqBJ7e4MhD2nB01BAejR_1vT9%2B_5Ar5mJncncA@mail.gmail.com> <493DEB39-C4B4-409E-B8B2-B1B11E013754@netgate.com> <60555.1391549390@critter.freebsd.dk> <23B18B88-D888-46B3-99F6-905F86E20FAF@netgate.com> <lcsqov$ui9$1@ger.gmane.org> <DCE7B22A-D51F-471A-B446-4B76D87E775D@netgate.com>
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On 02/05/14 08:44, Jim Thompson wrote: > > >> On Feb 5, 2014, at 1:55, Kevin Bowling <kevin.bowling@kev009.com> wrote: >> > [...] > >> Where A1100 wins hands down is memory capacity, and possibly even memory bandwidth (DDR4 mentioned in the PR..). >> >> Intel's server Atom chips and even the extremely powerful Xeon E3 are quite limited by 32GB RAM (and it's also somewhat expensive vs RDIMMs). > > I'm not sure what your point is. > > The C2750, C2550, C2558 & C2758 will all address 64 GB of DDR3 RAM. > > You'll have to use Registered DIMMs and likely drop back to DDR3 to get to 128GB on the A1100. > > So I see parity in terms of addressable RAM. > > [...] This discussion is very entertaining. But let's not lose sight of the main point: ARM processors are not going away. It is to FreeBSD's detriment if we don't have Tier 1 support for a processor that, by some guesses, already comprises the majority of new installations by count. -- George
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