Why don't you try to run CMP2.0 version of your app on
3.2.1 and see whether it's true.
What your experience shows is that CMP1.1 app is faster
than CMP2.0.
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Boulatian, Misak
Sent: Friday, January 16, 2004 10:22 PM
To: [EMAIL PROTECTED]
Subject: [JBoss-user] JBoss 3.2.3 commit option B or C a lot slower than JBoss 3.2.1Hi,It seems like JBoss 3.2.3 commit option B or C a lot slower than JBoss 3.2.1 with same commit options. The only difference is that with JBoss 3.2.1 we were running CMP 1.1 with 'modified' flag optimization to minimize the number of synchronizations with Database (it served as some kind of dirty bit for an instance of entity bean). With JBoss 3.2.3 we moved to CMP 2.0 and lost the option to use 'modified' optimization. Can this be the source of slowdown? By the way, all my get methods are declared to be read only in the jboss.xml. Here is a piece of log that I got:- JBOSS 3.2.3 with Commit-Option B (Sybase row-level locking)I am doing a findBy***() to retrieve a Collection of references to an Entity Bean. While iterating through the collection, it appears that a SELECT statement is executed for every get() method that is called.In addition, the response time of each SELECT statement is ~300ms. How can I improve this performance? The Entity Bean is configured for transaction "Required".
See logs below:
2004-01-16 08:45:22,706 136813 DEBUG [org.jboss.ejb.plugins.cmp.jdbc.JDBCEJBQLQuery.PositionDetail#findByAccountId] (TP-Processor4:) Executing SQL: SELECT t0_o.accountId, t0_o.accountType, t0_o.countryCode, t0_o.currency, t0_o.symbol, t0_o.symbolType FROM PositionDetail t0_o WHERE (t0_o.accountId = ?)2004-01-16 08:45:22,706 136813 TRACE [org.jboss.resource.connectionmanager.JBossManagedConnectionPool] (TP-Processor4:) supplying ManagedConnection from pool: [EMAIL PROTECTED]2004-01-16 08:45:22,706 136813 TRACE [org.jboss.resource.connectionmanager.JBossManagedConnectionPool] (TP-Processor4:) Getting connection from pool [InUse/Available/Max]: [1/10/20]2004-01-16 08:45:23,096 137203 TRACE [org.jboss.resource.connectionmanager.JBossManagedConnectionPool] (TP-Processor4:) putting ManagedConnection back into pool2004-01-16 08:45:23,096 137203 TRACE [org.jboss.resource.connectionmanager.JBossManagedConnectionPool] (TP-Processor4:) Returning connection to pool [InUse/Available/Max]: [0/10/20]2004-01-16 08:45:23,096 137203 DEBUG [org.jboss.ejb.plugins.cmp.jdbc.JDBCLoadEntityCommand.PositionDetail] (TP-Processor4:) Executing SQL: SELECT dayTradingAmount, dayTradingQuantity, marketValue, nonNegPosition, oca, requiredBoxQuantity, safekeepingQuantity, settlementDatePosition, tradeDatePosition, transferQuantity FROM PositionDetail WHERE (accountId=? AND accountType=? AND countryCode=? AND currency=? AND symbol=? AND symbolType=?)2004-01-16 08:45:23,096 137203 TRACE [org.jboss.resource.connectionmanager.JBossManagedConnectionPool] (TP-Processor4:) supplying ManagedConnection from pool: [EMAIL PROTECTED]2004-01-16 08:45:23,096 137203 TRACE [org.jboss.resource.connectionmanager.JBossManagedConnectionPool] (TP-Processor4:) Getting connection from pool [InUse/Available/Max]: [1/10/20]2004-01-16 08:45:23,300 137407 TRACE [org.jboss.resource.connectionmanager.JBossManagedConnectionPool] (TP-Processor4:) putting ManagedConnection back into pool2004-01-16 08:45:23,300 137407 TRACE [org.jboss.resource.connectionmanager.JBossManagedConnectionPool] (TP-Processor4:) Returning connection to pool [InUse/Available/Max]: [0/10/20]2004-01-16 08:45:23,300 137407 DEBUG [org.jboss.ejb.plugins.cmp.jdbc.JDBCLoadEntityCommand.PositionDetail] (TP-Processor4:) Executing SQL: SELECT dayTradingAmount, dayTradingQuantity, marketValue, nonNegPosition, oca, requiredBoxQuantity, safekeepingQuantity, settlementDatePosition, tradeDatePosition, transferQuantity FROM PositionDetail WHERE (accountId=? AND accountType=? AND countryCode=? AND currency=? AND symbol=? AND symbolType=?)2004-01-16 08:45:23,300 137407 TRACE [org.jboss.resource.connectionmanager.JBossManagedConnectionPool] (TP-Processor4:) supplying ManagedConnection from pool: [EMAIL PROTECTED]2004-01-16 08:45:23,300 137407 TRACE [org.jboss.resource.connectionmanager.JBossManagedConnectionPool] (TP-Processor4:) Getting connection from pool [InUse/Available/Max]: [1/10/20]2004-01-16 08:45:23,628 137735 TRACE [org.jboss.resource.connectionmanager.JBossManagedConnectionPool] (TP-Processor4:) putting ManagedConnection back into pool2004-01-16 08:45:23,628 137735 TRACE [org.jboss.resource.connectionmanager.JBossManagedConnectionPool] (TP-Processor4:) Returning connection to pool [InUse/Available/Max]: [0/10/20]2004-01-16 08:45:23,628 137735 DEBUG [org.jboss.ejb.plugins.cmp.jdbc.JDBCLoadEntityCommand.PositionDetail] (TP-Processor4:) Executing SQL: SELECT dayTradingAmount, dayTradingQuantity, marketValue, nonNegPosition, oca, requiredBoxQuantity, safekeepingQuantity, settlementDatePosition, tradeDatePosition, transferQuantity FROM PositionDetail WHERE (accountId=? AND accountType=? AND countryCode=? AND currency=? AND symbol=? AND symbolType=?)2004-01-16 08:45:23,628 137735 TRACE [org.jboss.resource.connectionmanager.JBossManagedConnectionPool] (TP-Processor4:) supplying ManagedConnection from pool: [EMAIL PROTECTED]2004-01-16 08:45:23,628 137735 TRACE [org.jboss.resource.connectionmanager.JBossManagedConnectionPool] (TP-Processor4:) Getting connection from pool [InUse/Available/Max]: [1/10/20]2004-01-16 08:45:23,956 138063 TRACE [org.jboss.resource.connectionmanager.JBossManagedConnectionPool] (TP-Processor4:) putting ManagedConnection back into pool2004-01-16 08:45:23,956 138063 TRACE [org.jboss.resource.connectionmanager.JBossManagedConnectionPool] (TP-Processor4:) Returning connection to pool [InUse/Available/Max]: [0/10/20]2004-01-16 08:45:23,956 138063 DEBUG [org.jboss.ejb.plugins.cmp.jdbc.JDBCLoadEntityCommand.PositionDetail] (TP-Processor4:) Executing SQL: SELECT dayTradingAmount, dayTradingQuantity, marketValue, nonNegPosition, oca, requiredBoxQuantity, safekeepingQuantity, settlementDatePosition, tradeDatePosition, transferQuantity FROM PositionDetail WHERE (accountId=? AND accountType=? AND countryCode=? AND currency=? AND symbol=? AND symbolType=?)2004-01-16 08:45:23,956 138063 TRACE [org.jboss.resource.connectionmanager.JBossManagedConnectionPool] (TP-Processor4:) supplying ManagedConnection from pool: [EMAIL PROTECTED]2004-01-16 08:45:23,956 138063 TRACE [org.jboss.resource.connectionmanager.JBossManagedConnectionPool] (TP-Processor4:) Getting connection from pool [InUse/Available/Max]: [1/10/20]2004-01-16 08:45:24,300 138407 TRACE [org.jboss.resource.connectionmanager.JBossManagedConnectionPool] (TP-Processor4:) putting ManagedConnection back into pool2004-01-16 08:45:24,300 138407 TRACE [org.jboss.resource.connectionmanager.JBossManagedConnectionPool] (TP-Processor4:) Returning connection to pool [InUse/Available/Max]: [0/10/20]2004-01-16 08:45:24,300 138407 DEBUG [org.jboss.ejb.plugins.cmp.jdbc.JDBCLoadEntityCommand.PositionDetail] (TP-Processor4:) Executing SQL: SELECT dayTradingAmount, dayTradingQuantity, marketValue, nonNegPosition, oca, requiredBoxQuantity, safekeepingQuantity, settlementDatePosition, tradeDatePosition, transferQuantity FROM PositionDetail WHERE (accountId=? AND accountType=? AND countryCode=? AND currency=? AND symbol=? AND symbolType=?)2004-01-16 08:45:24,300 138407 TRACE [org.jboss.resource.connectionmanager.JBossManagedConnectionPool] (TP-Processor4:) supplying ManagedConnection from pool: [EMAIL PROTECTED]2004-01-16 08:45:24,300 138407 TRACE [org.jboss.resource.connectionmanager.JBossManagedConnectionPool] (TP-Processor4:) Getting connection from pool [InUse/Available/Max]: [1/10/20]2004-01-16 08:45:24,628 138735 TRACE [org.jboss.resource.connectionmanager.JBossManagedConnectionPool] (TP-Processor4:) putting ManagedConnection back into pool2004-01-16 08:45:24,628 138735 TRACE [org.jboss.resource.connectionmanager.JBossManagedConnectionPool] (TP-Processor4:) Returning connection to pool [InUse/Available/Max]: [0/10/20]2004-01-16 08:45:24,628 138735 DEBUG [org.jboss.ejb.plugins.cmp.jdbc.JDBCLoadEntityCommand.PositionDetail] (TP-Processor4:) Executing SQL: SELECT dayTradingAmount, dayTradingQuantity, marketValue, nonNegPosition, oca, requiredBoxQuantity, safekeepingQuantity, settlementDatePosition, tradeDatePosition, transferQuantity FROM PositionDetail WHERE (accountId=? AND accountType=? AND countryCode=? AND currency=? AND symbol=? AND symbolType=?)Thanks,Misak
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