Re: [PATCH] compinit forks less

Yeah.  I didn't really work through all the complexity of an
array-based solution, but you make good points toward the
"this patch is simplest" idea.  In any event, it can also be
just a step in the right direction.

I started with `strace` as well, but at least on Linux with
sequentially increasing PIDs you can do this to count forks:
    a=($(zsh -c 'echo $$; zsh -lic echo\ \$\$; :'))
    echo $((a[2] - a[1]))
and many other ways like `grep processes /proc/stat` (with
various assumptions about system activity across the polls).
`strace` is most precise, of course.

I've been using this patch without issue since around October,
but since release talk is gearing up, I thought I should post
it.  Only about a 5..10% performance effect for me, but some
systems might fork much more slowly.  (Cygwin used to be like
that, for example.)