This would be great! :)
Cheers,
Robert
Ola Bini wrote:
Hi,
Jon Tirsen proposed that a nice thing for Goldspike would be to share
the AST's between runtimes, to avoid the huge memory impact and
performance of loading Rails over and over again for a new runtime.
I'm wondering whether this is something we should do. Basically, we
could implement org.jruby.Ruby.clone, which would return copies of
everything in the current runtime, except that all AST links points to
the same AST as the first one.
To make this feasible, we would need to remove runtime dependent
information from the AST. As far as I can see, there are only three
nodes which cache information of some sort connected to a runtime:
FixnumNode
RegexpNode
ReturnNode (target)
Now, both FixnumNode and RegexpNode would be quite easy to exteralize
into some other cache outside the AST. The main problem would be the
ReturnNode, where target is a RubyObject (I think).
Anyone have any opinionss? Would it be worth doing?
Cheers
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