db-derby-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Kathey Marsden (JIRA)" <derby-...@db.apache.org>
Subject [jira] Created: (DERBY-1372) Handle data overrun of DDMWriter buffer more efficiently
Date Fri, 02 Jun 2006 21:55:29 GMT
Handle data overrun of DDMWriter buffer more efficiently
--------------------------------------------------------

         Key: DERBY-1372
         URL: http://issues.apache.org/jira/browse/DERBY-1372
     Project: Derby
        Type: Improvement

  Components: Network Server, Performance  
    Versions: 10.1.2.1    
    Reporter: Kathey Marsden
    Priority: Minor


Currently if data writing overruns DDMWriter's 32K buffer, 
Network server will allocate a twice as big buffer and copy the 
data.    This could be made more efficient.

One possibility is to keep a shared pool of buffers and chain them. This might also help with
general scalability of network server.

When this is fixed, the code in writeQRYDTA to guestimate if we 
have enough remaining room in the block can be removed.


-- 
This message is automatically generated by JIRA.
-
If you think it was sent incorrectly contact one of the administrators:
   http://issues.apache.org/jira/secure/Administrators.jspa
-
For more information on JIRA, see:
   http://www.atlassian.com/software/jira


Mime
View raw message