On 4 October 2010 22:51, Henrik Sperre Johansen <henrik.s.johansen@veloxit.no> wrote:
 On 04.10.2010 21:47, Igor Stasenko wrote:
On 4 October 2010 22:09, Stéphane Ducasse<stephane.ducasse@inria.fr>  wrote:
so let us know in the bug entry what is the conclusion :)
I think someone should verify my benchmarks i.e.
[ self loadsomething ] timeToRun
before and after patch.
And conclusion is better be written by Henrik, because he's having concerns about speed, while i don't. :)
I already have:
emm.. wait. WeakKeyDict should not delete associations with nil-ed keys automatically, because otherwise you won't be able to use it in weak finalization scheme. There is two distinct use cases of weak-key dicts: a) for weak finalization b) for attaching some extra info(value) per object(key), which can be automatically discarded once object become garbage so, while in case (b) you can mercilessly kill/reuse associations with nil keys, once they discovered in case (a) you should preserve them until there is explicit request from outside to finalize values. The need in (a), apparently prohibits from using (b) in most efficient manner. So, i think, the solution would be to introduce a specialized weak-key dicts, which can work much better for (b).
Cheers, Henry
_______________________________________________ Pharo-project mailing list Pharo-project@lists.gforge.inria.fr http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project
-- Best regards, Igor Stasenko AKA sig.