Roger Pack wrote:
> 
> I'm all for the hooks to gc start and end.  That would be nice.
> 
 >
> The hooks for thread init would be nice, though I'd still like to see
> new threads receive the global hooks [1]
> 

Global "before GC" and "after GC" hooks would be *very* helpful for 
invalidating general computational caches and would probably perform 
better than weak arrays and hashes in some cases.

KAS