Re: CVS commit: src/sys/arch

[Mindaugas Rasiukevicius <rmind%netbsd.org@localhost>]

"Christoph Egger" <Christoph_Egger%gmx.de@localhost> wrote:
> 
> > Hi,
> > 
> > Why are any types other than in the pmap different between
> > PAE and !PAE?
> > 
> > When this was originally proposed I asked for stuff like
> > paddr_t to be 64 bits no matter what the kernel compile
> > settings where.
> 
> Interesting to hear that from your side. When asked for this
> a debate about overhead started.

Unifying sizes of certain types up to 64-bits would be a good choice
from engineering standpoint.  Actually measuring the overhead would
answer whether it is worth.

My bet is that the overhead would be quite low on modern x86 machines.

> 
> Christoph

-- 
Mindaugas