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Re: Release RTL bodies after compilation (sometimes)

Jeffrey A Law <law@redhat.com> writes:

> On Wed, 2004-09-15 at 14:08, Michael Matz wrote:
> >  The point is, that currently collection is slower the more things it has 
> > to walk.
> Reducing this was never the primary goal of ggc_free.  The primary 
> goal of ggc_free was to return memory to the GC system faster so
> that it could be re-used before the next collection point, thus
> potentially reducing the peak memory usage.
> 
> The fact that we have fewer things to mark was a secondary effect.

Actually, it's not an effect at all.  You can only safely use ggc_free
on an object which is not referenced.  Objects which are not
referenced are not marked.  Therefore, ggc_free does not change the
number of objects marked.
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