Comment by dwattttt

> Let's say you have 1GB RAM. You're running program that occupies 600 MB. Now this program wants to launch second small program that occupies 1 MB.

> You're doing fork + exec.

This is the clear problem: you don't want another process that's a duplicate of the current one, that's just a detail of what you actually want: a 1mb process. Right now it's a badly leaky detail which you're forced to work around.