Kito, Since Leonardo answered your question, and since subject/title = performance params, I will go ahead and pass on performance params that are in my web.xml.
See comments, and the URLs provided below as well. One of the outstanding Apache/PrimeFaces committers wrote the blog, and I am always happy to share and/or pass along. Hope it helps. When you read the context params below, you will see that I'm using high performance JUEL, OpenWebBeans, and MyFaces...of course. :) <context-param> <param-name>org.apache.myfaces.EXPRESSION_FACTORY</param-name> <param-value>de.odysseus.el.ExpressionFactoryImpl</param-value> </context-param> <context-param> <param-name>org.apache.myfaces.EL_RESOLVER_COMPARATOR</param-name> <param-value>org.apache.myfaces.el.unified.OpenWebBeansELResolverComparator</param-value> </context-param> <context-param> <param-name>org.apache.myfaces.COMPRESS_STATE_IN_SESSION</param-name> <param-value>false</param-value> </context-param> <context-param> <param-name>org.apache.myfaces.NUMBER_OF_VIEWS_IN_SESSION</param-name> <param-value>10</param-value> </context-param> <context-param> <param-name>org.apache.myfaces.SERIALIZE_STATE_IN_SESSION</param-name> <param-value>false</param-value> </context-param> <context-param> <param-name>org.apache.myfaces.SUPPORT_JSP_AND_FACES_EL</param-name> <param-value>false</param-value> </context-param> <!-- Increase your JSF application performance (Part 1 - Environment & Configuration) http://tandraschko.blogspot.de/2012/08/increase-your-jsf-application.html --> <context-param> <param-name>javax.faces.FACELETS_REFRESH_PERIOD</param-name> <param-value>-1</param-value> </context-param> <context-param> <param-name>org.apache.myfaces.CHECK_ID_PRODUCTION_MODE</param-name> <param-value>false</param-value> </context-param> <context-param> <param-name>org.apache.myfaces.VIEW_UNIQUE_IDS_CACHE_ENABLED</param-name> <param-value>true</param-value> </context-param> <context-param> <param-name>org.apache.myfaces.SAVE_STATE_WITH_VISIT_TREE_ON_PSS</param-name> <param-value>false</param-value> </context-param> <!-- https://cwiki.apache.org/MYFACES/cache-el-expressions.html --> <context-param> <param-name>org.apache.myfaces.CACHE_EL_EXPRESSIONS</param-name> <param-value>always</param-value> </context-param> On Thu, Oct 31, 2013 at 6:25 PM, Kito Mann <kito.m...@virtua.com> wrote: > Hello everyone, > > I have a couple of questions about performance parameters: > > · org.apache.myfaces.SUPPORT_JSP_AND_FACES_EL > > How significant is the performance improvement for a Facelet page if this > is turned off? > > · org.apache.myfaces.VIEW_UNIQUE_IDS_CACHE_ENABLED > > If I understand this correctly, this is only useful after a specific user > has already reached the maximum number of views stored in the session, or > am I missing something? > > ___ > > Kito D. Mann | @kito99 | Author, JSF in Action > Virtua, Inc. | http://www.virtua.com | JSF/Java EE training and consulting > http://www.JSFCentral.com | @jsfcentral > +1 203-998-0403 > > * Listen to the Enterprise Java Newscast: > *http://w<http://blogs.jsfcentral.com/JSFNewscast/> > ww.enterprisejavanews.com* > * JSFCentral Interviews Podcast: > http://www.jsfcentral.com/resources/jsfcentralpodcasts/ > * Sign up for the JSFCentral Newsletter: > http://oi.vresp.com/?fid=ac048d0e17 >