From: Paul Brannan <pbrannan@...>
Date: 2002-05-26T14:46:12+09:00
Subject: Re: FAQ for newcomers familiar with lower level language

On Sat, May 25, 2002 at 06:56:42AM +0900, Kent Dahl wrote:
> Are there existing/planned hooks into the GC? I know I'd like to be able
> to get some feedback from the GC about what the peaks are, how much it
> has freed since some point etc. Basically like those thermometers that
> measure daily bottom and daily top, plus status I could diff at
> (arbitrary) points in my code.

It would also be nice, from a debugging perspective, to be able to ask
Ruby "who has a reference to me?"  The only way I've found to do this so
far is by running Ruby inside gdb and placing a breakpoint in
rb_gc_mark.

Paul