JBoss development, A new message was posted in the thread "ServiceInvoker deliverSync too slow...": http://community.jboss.org/message/523314#523314 Author : Tom Fennelly Profile : http://community.jboss.org/people/tfennelly Message: -------------------------------------------------------------- Something you can check: 1. Make sure you are caching and reusing the ServiceInvoker instance. 2. The message-aware service listener in question has enough threads e.g. in your case try 10.  Use the "maxThreads" to configure this.   BTW... this type of question would normally be asked on the User Forum.  The dev forum is intended for discussions relating to the devleopment of JBoss ESB itself. -------------------------------------------------------------- To reply to this message visit the message page: http://community.jboss.org/message/523314#523314