Re: Boehm-Demers-Weiser conservative garbage collector and GNAT

[Martin Krischik <krischik@users.sourceforge.net>]

Florian Weimer wrote:

> Martin Krischik <krischik@users.sourceforge.net> writes:
 
>> The Boehm-Demers-Weiser conservative garbage collector has atomic
>> memory which must be pointer free. But this is used only for
>> performance improvemend.
 
> Flagging atomic memory (and memory without internal access points) is
> crucial if you allocate large data structures (and cannot use the
> generational collector for some reason).

I think so too.
 
>> Current status is that I implemented the thin and thick bindung to the
>> collector and added the collector to my Trace class. Trace is used in any
>> class and task so it a good test. But I will add further tests.
> 
> Interesting.  A project of mine which is still under development
> changes GNAT itself to support the Boehm-Demers-Weiser collector:

Damm. I made the initial post to prevent duplicate development and now it
happend anyway. But prehaps is not to late to join forces.

>   <http://www.enyo.de/fw/software/gnat-gc/>

I have a look at it.

> The project is not finished, but I think I've implemented the most
> complicated things.

Well, I am almost finished but I need some more testing. Of course it is
easier for me since the programer need to specify the right Storage_Pool
for each access when the garbage collector is implemented outside the
compiler environment.

With Regards.

Martin
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