[OpenAFS-devel] Re: IPv6 support

[Jeffrey Hutzelman]

--On Wednesday, February 16, 2011 09:14:55 AM -0600 Andrew Deason 
<adeason@sinenomine.net> wrote:

> On Tue, 15 Feb 2011 22:59:23 -0500
> Jeffrey Hutzelman <jhutz@cmu.edu> wrote:
>
>> On SPARC, there is virtually no advantage to building 64-bit versions
>> of most binaries,
>
> Virtual memory space?

_Most_ binaries don't need more than 2GB of virtual address space.
The fileserver would likely benefit, on machines with enough RAM to make 
this worthwhile.  Most of our programs certainly would not.

I'd suggest building a 64-bit fileserver and 64-bit versions of most of the 
libraries we export (in addition to the 32-bit versions, of course).  But 
that's about it.

Of course, that needs to be selectable, but I think it's a fine default. 
There are very few SPARC Solaris machines that are likely to run current 
OpenAFS but are not 64-bit capable.  I'm not sure current Solaris still 
even supports anything that old.

Naturally, for other platforms the tradeoff may work out differently.