64bit CPUs

[João Carlos Mendes Luís]

Robert Watson wrote:
> On Sun, 1 May 2005, Mike Tancsa wrote:
>> A somewhat obvious question to some perhaps, but what server 
>> application mix on FreeBSD today sees an improvement using 64bit CPUs 
>> ?  In my ISP centric world, my big apps are BIND, IMAP/POP3, httpd via 
>> apache, SMTP, AV and SPAM scanning, and firewalls/routing.  Apart from 
>> larger RAM, why would these benefit from the 64bit world ?  Or would 
>> they ?
> 
> RAM/address space is the big reason.  In fact, applications compiled for 
> 64-bits may well run slower than 32-bit ones running on the 64-bit 
> kernel. Note that systems like Solaris default build many programs as 
> 32-bit, since there's no benefit to running ls(1) with a 64-bit address 
> space.

     Should I understand from this that, in the long term, FreeBSD will 
take the same path as Solaris, and have a dual (32bit/64bit) userland on 
amd64 arch?


                                         Jonny

-- 
João Carlos Mendes Luís - Networking Engineer - jonny at jonny.eng.br