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From "Tomohito Nakayama (JIRA)" <derby-...@db.apache.org>
Subject [jira] Updated: (DERBY-1535) Trial2 for DERBY-550, improve use of Engine from NetworkServer and reduce memory usage
Date Wed, 19 Jul 2006 13:01:14 GMT
     [ http://issues.apache.org/jira/browse/DERBY-1535?page=all ]

Tomohito Nakayama updated DERBY-1535:

    Attachment: DERBY-1513_1535.patch

I applied patch of both DERBY-1513(Trial-1) and DERBY-1535(Trial-2).

With this patch, OutOfMemoryError did not happen at NetworkServer in the configuration of
-Xms32m -Xmx128m.
//However , OutOfMemoryError happened at the Client....

There *were* different in the measured result from the referential result in DERBY-1504, though
it was not clear whether memory usage was improved ...
At least, the result shows that behavior of memory usage is different from before.
//In my view, it seems like that chart of memory usage is more healthy than before .....

I think this patch would improve memory usagein NetworkServer to some extent.....

> Trial2 for DERBY-550, improve use of Engine from NetworkServer and reduce memory usage
> --------------------------------------------------------------------------------------
>                 Key: DERBY-1535
>                 URL: http://issues.apache.org/jira/browse/DERBY-1535
>             Project: Derby
>          Issue Type: Sub-task
>            Reporter: Tomohito Nakayama
>         Attachments: DERBY-1513_1535.patch, DERBY-1535.patch, serverMemoryUsage.xls,
> Through DERBY-1513, Trial 1 for DERBY-550, 
> it was suggested that NetworkServer seems to use Engine inefficiently and use too much
of memory.
> This task try to improve the use of Engine from NetworkServer and try to reduce memory

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