DMD memory management

[ketmar via Digitalmars-d]

On Mon, 15 Jun 2015 18:19:06 -0400, bitwise wrote:

> When memory is never cleaned up, can't that make fork() really slow?
> Doesn't fork copy all memory of the entire process?

on any decent OS fork(2) does CoW (copy-on-writing), so forking is 
lightning fast. also, any decent OS knows about "fork-and-replace" 
pattern, so it throws away old process pages on replacing.
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