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From "Dag H. Wanvik (JIRA)" <j...@apache.org>
Subject [jira] Updated: (DERBY-262) Use Java 1.5 NIO for improved performance
Date Mon, 29 Jun 2009 23:47:47 GMT

     [ https://issues.apache.org/jira/browse/DERBY-262?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Dag H. Wanvik updated DERBY-262:

    Component/s: Store

> Use Java 1.5 NIO for improved performance
> -----------------------------------------
>                 Key: DERBY-262
>                 URL: https://issues.apache.org/jira/browse/DERBY-262
>             Project: Derby
>          Issue Type: Wish
>          Components: Services, Store
>            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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