Re: 64 vs 32 lenny
On Fri, Mar 20, 2009 at 03:50:50PM -0700, prad wrote:
> i've recently returned to debian on a amd64 3400+ machine with 1G ram
> in it.
>
> i am running the 32bit version of lenny.
>
> would there be benefits to use 64bit lenny instead?
Yes.
> in the archives, i found posts suggesting there is no benefit unless
> you are using 64-bit apps that require extra processing power like
> number-crunching.
Unlike most other 64-bit arches, amd64 can provide better performance
than i386 due to having more registers (since i386 has barely any).
Other architectures already had plenty of registers, so they sometimes
got slightly slower due to the increased memory usage (due to having
64 bit pointers in place of 32 bit pointers). Obviously things vary
depending on what you are doing.
There are other obvious benefits such as being able to physically
address more than 4 GiB of memory.
Google can tell you about this in much more detail.
Regards,
Roger
--
.''`. Roger Leigh
: :' : Debian GNU/Linux http://people.debian.org/~rleigh/
`. `' Printing on GNU/Linux? http://gutenprint.sourceforge.net/
`- GPG Public Key: 0x25BFB848 Please GPG sign your mail.
Reply to: