Peter, You seem to use custom made tool to analyse the GC. At least it is what I can gather from the graphs in the slides and from the fact that you indicate the regular expressions to parse the GC vs FullGC. So my question is what is : Do you use custom made tools or tools like jvmstat ? Can you explain what is yr approach ? \T, View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4166523#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...