Peter Buckingham <[EMAIL PROTECTED]> wrote:
> Think of a situation where the memory footprint of the parent is large
> and you want execute something with a small footprint, eg execing
> something from a java process.
>
> The fact that you are execing means you don't need to access the address
> space of the parent for communication so why copy it? (like is done in fork)
>
> Linux uses Copy on Write to address this problem.
SonOS-4.0 invented copy on write 20 years ago....
vfork is still faster because it also borrows the mmu context from the parent.
Jörg
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EMail:[EMAIL PROTECTED] (home) Jörg Schilling D-13353 Berlin
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