[ http://tracker.firebirdsql.org/browse/CORE-3560?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Sean Leyne reopened CORE-3560: ------------------------------ Re-opened based on comments and additional details received. > Firebird 2.5 Classic Server uses 47% more memory than 2.1.5 when caching > metadata > --------------------------------------------------------------------------------- > > Key: CORE-3560 > URL: http://tracker.firebirdsql.org/browse/CORE-3560 > Project: Firebird Core > Issue Type: Bug > Components: Engine > Affects Versions: 2.5.0 > Environment: Windows family > Reporter: Jesus Angel Garcia Zarco > Assignee: Alexander Peshkov > Fix For: 2.5.1 > > Attachments: Database.rar, MemoryUsageWindows.docx, metadata.rar, > Multiconexion.rar, ResourceMonitor.png, TaskManager.png, TaskManager.png, > UDFCointec.dll > > > When the user connects to my application, executes one stored procedure to > register the user login. This stored procedure update one table that force > the load of most of the metadata in memory. > The difference is that while Firebird 2.1.5 uses 57100 Kb, Fb 2.5.1 uses > 84100 Kb, that is a 47% more memory than 2.1. once executed the procedure and > starting to work with the application, the memory consumption increases in > parallel. That implies that for 200 users the less memory needed for 2.5 is > near 16 Gb, while for 2.1 is near 11 Gb that is a big difference. > That implies that classic server will use per connection so much memory. I > don't know if is a bug or not, but the difference is so much. If classic > server is for complex enviroments with high load, then > Steps to reproduce the issue: Connect to the database and execute procedure > usuario_entrada( 0, '', 'STATION01', '' ) -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://tracker.firebirdsql.org/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira ------------------------------------------------------------------------------ Try before you buy = See our experts in action! The most comprehensive online learning library for Microsoft developers is just $99.99! Visual Studio, SharePoint, SQL - plus HTML5, CSS3, MVC3, Metro Style Apps, more. Free future releases when you subscribe now! http://p.sf.net/sfu/learndevnow-dev2 Firebird-Devel mailing list, web interface at https://lists.sourceforge.net/lists/listinfo/firebird-devel