write a 20GB file

[Patrick Maupin]

On May 15, 7:09 pm, Dave Angel <da... at ieee.org> wrote:
> Nathan Rice wrote:
> > This is precisely the situation mmap was made for :)  It has almost the same
> > methods as a file so it should be an easy replacement.
>
> > <snip>
>
> Only on a 64bit system, and I'm not sure it's even possible there in
> every case.  On a 32bit system, it would be impossible to mmap a 20gb
> file.  You only have 4gb of address space to play with, total.
>
> DaveA