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From "Dyre Tjeldvoll (JIRA)" <derby-...@db.apache.org>
Subject [jira] Updated: (DERBY-262) Use Java 1.5 NIO for improved performance
Date Mon, 19 Dec 2005 17:28:31 GMT
     [ http://issues.apache.org/jira/browse/DERBY-262?page=all ]

Dyre Tjeldvoll updated DERBY-262:
---------------------------------

      Component: Performance
                     (was: SQL)
                     (was: JDBC)
                     (was: Store)
                     (was: Services)
                     (was: Network Server)
    Environment: 

Added performance as component

> Use Java 1.5 NIO for improved performance
> -----------------------------------------
>
>          Key: DERBY-262
>          URL: http://issues.apache.org/jira/browse/DERBY-262
>      Project: Derby
>         Type: Wish
>   Components: Performance
>     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.  

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