[ https://issues.apache.org/jira/browse/DERBY-3004?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Knut Anders Hatlen closed DERBY-3004. ------------------------------------- > Get rid of the finalizer in EmbedResultSet > ------------------------------------------ > > Key: DERBY-3004 > URL: https://issues.apache.org/jira/browse/DERBY-3004 > Project: Derby > Issue Type: Improvement > Components: JDBC, Performance > Affects Versions: 10.3.1.4 > Reporter: Knut Anders Hatlen > Assignee: Knut Anders Hatlen > Priority: Minor > Fix For: 10.4.0.0 > > Attachments: d3004.diff, d3004.stat > > > Finalizers make object allocation and garbage collection more expensive and > should be avoided for object types that are frequently allocated. > EmbedResultSet has a finalize() method and is frequently allocated for many > types of load. The following comment was posted on DERBY-1876: > By commenting out the finalize() method in EmbedResultSet, the time to run > the test on my laptop is reduced from ~3 seconds to ~1.3 seconds > (OpenSolaris, Sun Java SE 6). Since the finalizer is a no-op if the > activation isn't single-use, I think we should investigate whether there are > ways to avoid this cost for ResultSets that don't need the finalizer. -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.