Lincoln Lee [http://community.jboss.org/people/lincolnlee] replied to the discussion "jBPM performance v3.* verses v4.* - dbsession" To view the discussion, visit: http://community.jboss.org/message/539051#539051 -------------------------------------------------------------- We are using hsqldb in memory mode and the performance is still bad versus version 3.* we are getting about 100 times worse performance with a flow of about 10 activities (all java methods) Using JProbe to see which classes are using up all the time and it is in DbSession The time is being spend in RepositorySessionImpl.findProcessDefinitionByKey under SubProcessActivity.execute and under EndActivity.execute( ) withDbSession.deleteProcessInstance -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/539051#539051] Start a new discussion in jBPM at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&...]