Re: [jira] Created: (DERBY-262) Use Java 1.5 NIO for improved performance

[David Van Couvering]

It would be great to do this.  Once I get a little more familiar with 
Derby, I'd love to do this as a project; I think it's more than a 
one-person project so anyone else who'd like to join in...

But first things first, I'm still learning how the test framework works 
and how to submit a patch :)

David
Eric Solberg (JIRA) wrote:
Use Java 1.5 NIO for improved performance
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         Key: DERBY-262
         URL: http://issues.apache.org/jira/browse/DERBY-262
     Project: Derby
        Type: Wish
  Components: JDBC, SQL, Network Server, Store, Services  
    Reporter: Eric Solberg

Are there plans to take advantage of JDK 1.5 NIO in Derby?  This should give a substantial performance benefit.  In a simple test, processing extremely large PDF files (80+MB) into individual pages, I saw 3x-4x performance improvement using memory mapped files.  This was without doing anything 'smart' to squeeze out even more performance.