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From "Dyre Tjeldvoll (JIRA)" <derby-...@db.apache.org>
Subject [jira] Updated: (DERBY-212) Optimize some specific methods in Network Server to improve performance
Date Mon, 19 Dec 2005 17:13:31 GMT
     [ http://issues.apache.org/jira/browse/DERBY-212?page=all ]

Dyre Tjeldvoll updated DERBY-212:
---------------------------------

      Component: Performance
    Description: 
In reviewing the Network Server Code and profiling there were 
several areas that showed potential for providing performance 
improvement.

Functions that need optimizing to prevent unneeded object 
creation and excessive decoding
parsePKGNAMCSN()
parseSQLDTA_work()
buildDB2CursorName()


In DDMWriter and DDMReader, use System Routines in 
java.util.Arrays and System.arrayCopy instead of 
writing code to do functions like copy arrays and 
pad strings.



  was:
In reviewing the Network Server Code and profiling there were 
several areas that showed potential for providing performance 
improvement.

Functions that need optimizing to prevent unneeded object 
creation and excessive decoding
parsePKGNAMCSN()
parseSQLDTA_work()
buildDB2CursorName()


In DDMWriter and DDMReader, use System Routines in 
java.util.Arrays and System.arrayCopy instead of 
writing code to do functions like copy arrays and 
pad strings.



    Environment: 

Added performance as a component

> Optimize some specific methods in Network Server to improve performance
> -----------------------------------------------------------------------
>
>          Key: DERBY-212
>          URL: http://issues.apache.org/jira/browse/DERBY-212
>      Project: Derby
>         Type: Improvement
>   Components: Network Server, Performance
>     Versions: 10.1.1.0
>     Reporter: Kathey Marsden
>     Assignee: Knut Anders Hatlen
>     Priority: Minor

>
> In reviewing the Network Server Code and profiling there were 
> several areas that showed potential for providing performance 
> improvement.
> Functions that need optimizing to prevent unneeded object 
> creation and excessive decoding
> parsePKGNAMCSN()
> parseSQLDTA_work()
> buildDB2CursorName()
> In DDMWriter and DDMReader, use System Routines in 
> java.util.Arrays and System.arrayCopy instead of 
> writing code to do functions like copy arrays and 
> pad strings.

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