Date: Fri, 08 Oct 2010 10:53:31 +0100 From: Pete French <petefrench@ticketswitch.com> To: freebsd-amd64@freebsd.org, sathler90@gmail.com Subject: Re: i386 vs AMD64 for web/mysql server Message-ID: <E1P49dr-000NAO-HC@dilbert.ticketswitch.com> In-Reply-To: <AANLkTi=BtQ7%2BNedP_CkeHvT8VH4iHcyS7s%2B7jhR9Dpb3@mail.gmail.com>
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> Today I am running my web and mysql server in FreeBSD i386 and I have > the chance of moving to AMD64 architecture. > > This new server has 4 GB of RAM and 64 bit intel xeon cpus. > > Should I move to AMD64 or stick to i386 ? Yes, move to amd64 - if you are running a webserver and mysql then this is a very good thing to do.We did this a couple of years ago and have never looked back. Performance wise, you wont see it 20% faster like some places claim, but you shoudl see somewhere around 8% - thats what I got when I made some measurements (with some jobs being about 14% faster). Also, if you run ZFS, that has been a lot smoother ride for me under amd64! The only point where I would advise being cautious if if you have any home-written C code that you are running, as that will need to be looked at carefully to find any possible 32->64 issues (though -Wall on the compiler should find quite a few). -pete.
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