DMD memory management

[burjui via Digitalmars-d]

On Monday, 15 June 2015 at 22:25:27 UTC, Tofu Ninja wrote:
> I think fork just does copy on write, so all the garbage that 
> is no longer being referenced off in random pages shouldn't get 
> copied. Only the pages that get written are actually copied.
You are correct. fork() guarantees separate address spaces for 
the parent and the child processes, but there's a note in it's 
man page:

NOTES
        Under  Linux,  fork()  is  implemented using copy-on-write 
pages,
        so the only penalty that it incurs is the time and memory 
required to
        duplicate the parent's page tables, and to create a unique 
task
        structure for the child.