I am not sure any one else have encountered the same problem as me. When I edit the 'processdefinition.xml' with the Graphical Process Designer, every 'save' operation even adding a node would cause the cpu usage to run up to 100%, and the process of which would last about 10 minutes. While I edit the same 'processdefinition.xml' with text editor or xml editor, everything is so smooth. I also tried to start eclipse with argument' -vmargs -Xmx1024m -Xms512m', but it do no good. The problem keeps. Plz give me some suggestion. The problem slow down my job greatly. THX:) My notbook's configuration is as below: CPU, Intel Pentium 1.73GHZ, memory,1.5G. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3959488#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...