i386 vs AMD64 for web/mysql server

[Eduardo]

Thanks to you all who replied  ... I was already leaning to go for it
... now I'll do it for sure.

-Ed.

On Fri, Oct 8, 2010 at 12:53 PM, Pete French
<petefrench at ticketswitch.com> wrote:
>> 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.
>