[ http://issues.apache.org/jira/browse/DERBY-212?page=all ]
Knut Anders Hatlen reopened DERBY-212:
--------------------------------------
Assign To: Dyre Tjeldvoll (was: Knut Anders Hatlen)
Reopening the issue since my patch didn't address everything mentioned
in the description. Dyre has started optimizing parseSQLDTA_work(), so
I reassign the issue to him.
> 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: Dyre Tjeldvoll
> Priority: Minor
> Attachments: DERBY-212-parsePKGNAMCSN-2.diff, throughput-normalized.png,
> throughput.png
>
> 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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