Table Key

In the tables the columns correspond to the number of map elements that are manipulated. The first row gives the time in micro seconds for the Java HashMap implementation. The remaining rows are different Scala Maps as a percentage (with smaller values indicating longer times).

The Scala Maps are:

• mu.Map = scala.collection.mutable.Map (current default is HashMap)
• co.TrieMap = scala.collection.concurrent.TrieMap
• mu->im.Map = Like mu.Map, except at the end of loading it is converted to immutable.
• im.Map = scala.collection.immutable.Map
• im.IntMap = scala.collection.immutable.IntMap