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From "Christiaan (JIRA)" <j...@apache.org>
Subject [jira] Created: (OPENJPA-342) Performance of flush()
Date Wed, 29 Aug 2007 10:09:30 GMT
Performance of flush()
----------------------

                 Key: OPENJPA-342
                 URL: https://issues.apache.org/jira/browse/OPENJPA-342
             Project: OpenJPA
          Issue Type: Bug
         Environment: Windows XP, jdk1.6.0_02, Kodo 4.1.4, Ms sql server 2005, jTDS 1.2 database
driver
            Reporter: Christiaan


Based on the discussion in thread http://www.nabble.com/Performance%3A-single-vs-multiple-transactions-tf4272115.html
I've created a testcase, which is attached. It includes a "Performance results flush.txt"
which gives an overview of the the performance results. In general, using flush() within one
transaction with many changes the performance drops quite significantly (x 15). 

Btw, not sure which OpenJPA version this is. It is based on Kodo jdo version 4.1.4

regards,
Christiaan


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