The Scala stuff is impressive. Updated docs at the new site: http://docs.scala-lang.org/overviews/collections/performance-characteristics.html http://docs.scala

The Scala stuff is impressive. Updated docs at the new site: http://docs.scala-lang.org/overviews/collections/performance-characteristics.html http://docs.scala-lang.org/overviews/collections/performance... The new ConcurrentTrie is also a great addition to 2.10.