[Date Prev][Date Next] [Thread Prev][Thread Next] [Date Index] [Thread Index]

Re: Where could I upload x32 port bootstrap?

On Sat, 2012-11-10 at 20:14 -0200, Henrique de Moraes Holschuh wrote:
> On Sat, 10 Nov 2012, Bastian Blank wrote:
> > On Sat, Nov 10, 2012 at 02:15:14PM -0200, Henrique de Moraes Holschuh wrote:
> > > Yes, I know :)  Our amavisd-box at work has 16GiB RAM and 16 cores,
> > > we need at least that much to be able to run 64 instances with the
> > > scratch directories on tmpfs...
> > > x32 would be most likely a _MAJOR_ win for that box.
> > 
> > Is it _likely_ or is it? 16GiB can be used with the 32bit i386 also.
> I assume you mean a amd64-kernel with i386 userspace combination.
> Compared to x32, i*86 userspace on a 64-bit kernel has the added aggravation
> of the full kernel syscall compat layer, which has been a source of problems
> in the past, and all the wasted performance of our i486-optimized userland.

The compat layer for x32 is almost entirely the same as for i386 on
x86_64; indeed it is almost entirely the same as Linux uses for *every*
64-bit architecture that supports a 32-bit userland.  I think the only
interesting difference is that x32 has 64-bit time_t.


Ben Hutchings
The program is absolutely right; therefore, the computer must be wrong.

Attachment: signature.asc
Description: This is a digitally signed message part

Reply to: