From: Roger Pack <rogerdpack@...>
Date: 2009-12-17T08:41:47+09:00
Subject: [ruby-core:27203] compressed pointers?

I have seen that Ruby on 64-bit takes about twice as much RAM as it
does on 32-bit machines.

I also learned recently that Java with their new version 7 has some
optimizations to "compress" 64 bit pointers somewhat, so that they use
less space. [1]
I wonder if something like this could be used in ruby core.
Opinions?
-r
[1] http://openjdk.java.net/projects/jdk7/features/ ("compressed 64
bit pointers")