> > I just profiled a Kaffe run on pizza to compile the
> > .java files in test/awt/WidgetsDemo and it appears as
> > if more than 60 % of the run time is spent in the GC
> > code. 
(snip)
>                         ... I know of a few people who are working
> on more modern gc algs; lets hope something is going to come out of
> this.
(snip)
> > I could be very wrong, but I think that the GC implementation
> > is rather weak, as it stands now.


One of my projects for this year is to implement a (hopefully) more
efficient garbage-collector for Kaffe.

It'll be intended for the object demographics of bytecode-compiled
functional languages--very high allocation rates and dieoff, and maybe
lots of small constant-sized objects.  Therefore it won't be ideal for
Java, but I guess it could be tweaked to work decently.

To that end, does anyone know if anyone's done a publicly-available
study of Java object demographics?

And, is anyone else out there in the glamorous garbage-collection
business?

-- Dave

David Hughes
D.W.Hughes@exeter.ac.uk