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From "Earwin Burrfoot (JIRA)" <>
Subject [jira] Created: (LUCENE-1607) String.intern() faster alternative
Date Sun, 19 Apr 2009 15:22:47 GMT
String.intern() faster alternative

                 Key: LUCENE-1607
             Project: Lucene - Java
          Issue Type: Improvement
            Reporter: Earwin Burrfoot
             Fix For: 2.9

By using our own interned string pool on top of default, String.intern() can be greatly optimized.

On my setup (java 6) this alternative runs ~15.8x faster for already interned strings, and
~2.2x faster for 'new String(interned)'
For java 5 and 4 speedup is lower, but still considerable.

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