Doug,
On Fri, Jun 12, 2009 at 6:23 PM, Doug Lea wrote:
> This was fun to figure out. Performance on some of our
> tests involving get() is sensitive to the serial
> correlation of slot indices for the keys used across
> successive calls.
Are there any tests that have get() order the same as put(
Sorry for inserting myself into this thread but this has been an
interesting conversation filled with a lot of trade-offs and
optimization techniques for edge cases. It occurred to me that one of
the problems is that the traditional HashMap implementation relies on
inheritance rather than compositi
Ismael Juma wrote:
Out of curiosity, do you know if any tests have been done with an open
addressing scheme similar to Python dictionaries[1] in Java? Near the top,
there's a comment explaining how it works and the motivation.
More or less. This is roughly similar to the schemes I mentioned
a
Hi Doug,
Doug Lea writes:
> While open-addressing is used in
> IdentityHashMap (and in a very specialized form in
> ThreadLocal), you cannot live with linear-probed
> versions otherwise: Many user-defined hashCodes
> (and some JDK-defined ones too!) are not very good.
Out of curiosity, do you kn
