Date: Fri, 5 Oct 2007 15:39:00 -0300 From: Mario Lobo <mario.lobo@ipad.com.br> To: freebsd-questions@freebsd.org Subject: Re: what cpu type to use for a intel duo e6850 (i386 or amd64) Message-ID: <200710051539.01333.mario.lobo@ipad.com.br> In-Reply-To: <47068295.7020807@infracaninophile.co.uk> References: <50409.192.168.64.1.1191606704.squirrel@webmail.ipad.com.br> <47068295.7020807@infracaninophile.co.uk>
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On Friday 05 October 2007, Matthew Seaman wrote: > mario.lobo@ipad.com.br wrote: > > So, I did an SMP/i386 install. I cannot say I regret it since everything > > runs absolutely smooth and fast here. > > > > On the tecnical side (not practical) was it correct to give up 64 bit > > processing? > > This is a question to which there is no simple answer, other than > 'It depends.' > > What it depends on are such things as: > > * software compatibility with 32 or 64 bit system > > * what application load you require > > * how large the disk and memory structures you're dealing with are > > * how much RAM you have > > You'll find that programs like databases that have to do large > amounts of IO benefit greatly from being on a 64bit system, > especially if that system is fully populated with memory and disks. > > On the other hand, really compute-intensive programs can often gain > on a 32bit system by virtue of being able to fit more 32bit sized > objects into cache RAM. > > Desktops tend to be run at 32bit because of software compatibility > problems. Machines with Nvidia graphics cards need to be 32bit in > order to use the Nvidia accelerated graphics driver. > > As it is, for your server it seems that you have achieved that happy > performance level of "fast enough." Anything else is just gravy. > > Cheers, > > Matthew I have both types running (dual-core servers as 64 and dual-core desktops at 32). I was just curious as to what would happen if the roles were reversed. You sure cleared that up Thanks for the confirmation ! -- ********************************************************** //| //| Mario Lobo // |// | http://www.ipad.com.br // // ||||||| FreeBSD since 2.2.8 - 100% Rwindows-free **********************************************************
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