Zekun Li added the comment:
> This is only useful if the parent process has a lot of memory that's never
> used by the child processes right? Otherwise, you would lose via refcounting
> COWs.
What we saw in prod is that memory fragmentation caused by gc is the main
reason of
Zekun Li added the comment:
So what we did is:
We keep gc **disabled** on parent process and freeze after warmup, enable gc on
child process.
The reason not to do a full collection is mentioned in previous
comments/original ticket - (I called it) memory fragmentation.
The observation is
