Ok, just before going to sleep... I am wondering if a global cache would
be so bad...
I will dream with it, play with it, make some performance tests and,
after the home work done, I might agree with you...
...but before that I am still wondering.
=;o)
Paulo
> -----Original Message-----
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On
> Behalf Of Geir Magnusson Jr.
>
> > > This icache stuff isn't global. You understand that, right?
> > >
> > > geir
> >
> > Why not?
> > =:o)
> >
> > Paulo
>
> Reviewing the code should help with that one, but the basic idea is that
> a template in AST form can be shared by multiple thread, each with a
> different set of data in the contexts used byt those threads. Since the
> information that we are caching is therefore specific to the context, a
> global cache makes no sense. You could make some kind of thread local
> storage, or a central caching resource that expires stuff etc, etc,, but
> there was no need for that kind of machinery. Yes, there is a global
> introspector cache (which we don't actually use in Foreach now with the
> latest changes), but once we do the expensive 'instanceof' (or before,
> once we do the expensive and potentially blocking introspection), there
> is no need to keep doing that. Hence, the cache. Results in quite a
> performance improvement.
>
> geir
