[jboss-user] [Performance Tuning] - Re: JBoss memory usage pattern

Peter Johnson [http://community.jboss.org/people/peterj] created the discussion "Re: JBoss memory usage pattern" To view the discussion, visit: http://community.jboss.org/message/589019#589019 -------------------------------------------------------------- The problem with using VisualVM in a production environment is that it is too heavy of a solution. VisualVM updates its status constanly (every second?). Most monitoring tools update status only every 5 to 15 minutes. Of course that is adjustable, but the more often you monitor the greater the impact on production. If you are interested in gathering GC data during production, use -verbose:gc and redirect the data to a file (-Xloggc:<file>). That will give you sufficient data and you can turn -verbose:gc on/off from an MBean (a little java app run script a scrfipt could do this for you). Here are some paper I wrote on GC analysis: Java Garbage Collection Statistical Analysis 101 Java Garbage Collection Performance Analysis 201 at http://www.cmg.org/cgi-bin/search.cgi?q=java+peter+johnson&x=30&y=10 http://www.cmg.org/cgi-bin/search.cgi?q=java+peter+johnson&x=30&y=10 -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/589019#589019] Start a new discussion in Performance Tuning at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&...]