From: Roger Pack <roger.pack@...>
Date: 2008-11-06T08:52:19+09:00
Subject: [ruby-core:19707] Re: GC thought

> Here is a recent patch I've been experimenting with--for any advice. [1]

> [1] http://gist.github.com/18242 [also available
> http://wilkboardonline.com/roger/gc.c since I can never get the
> patches to work quite right]


On second thought one problem that could occur is that if a program is
running with several threads active at once [each within a
rb_thread_blocking_region] then forking for GC would [AFAIK] also fork
the threads so you'd have instead of 2 active threads, 4, some of them
doing duplicate work. So I suppose you'd only want to run it if you
know you're still single threaded.  1.8.x would be fine, though.
Thoughts?
-=R