I've been evaluating struts 2.1.8.1 and have found some troubling performance bottlenecks relating to the struts tag and freemarker. I have a JSP that has 7 struts2 tags in it. (A simple signup form)
I noticed in my load testing that the throughput of this page was 4-5 times slower under load (100 concurrent threads) than a JSP page with no struts2 tags on it. I cracked open my profiler and noticed the majority of the time spent in a page request was within freemarker. I uploaded a screen shot from my profiler here : http://tinypic.com/r/20johet/6 . I've seen a lot of discussion on the mailing lists about performance related issues and the recommendations that came along with them to address it. I believe I've done everything I can to tune this simple page. I would appreciate any feedback if there is something I am missing. Or is this a known issue? struts.xml: <struts> <!-- Constants --> <constant name="struts.devMode" value="false" /> <constant name="struts.i18n.encoding" value="UTF-8" /> <constant name="struts.multipart.maxSize" value="2000000" /> <constant name="struts.ui.theme" value="css_xhtml" /> <constant name="struts.freemarker.templatesCache" value="true" /> <constant name="struts.ui.templateDir" value="template"/> <constant name="struts.enable.SlashesInActionNames" value="true" /> <constant name="struts.convention.action.disableScanning" value="true" /> <constant name="struts.enable.DynamicMethodInvocation" value="false" /> <constant name="struts.url.includeParams" value="all" /> <!-- Configuration for the default package. --> <package name="default" extends="struts-default"> <result-types> <result-type name="tiles" class="org.apache.struts2.views.tiles.TilesResult" /> </result-types> <interceptors> <!-- Copied from struts-default.xml and changed validation exclude methods --> <interceptor-stack name="defaultStack"> <interceptor-ref name="exception" /> <interceptor-ref name="alias" /> <interceptor-ref name="servletConfig" /> <interceptor-ref name="prepare" /> <interceptor-ref name="chain" /> <interceptor-ref name="debugging" /> <interceptor-ref name="profiling" /> <interceptor-ref name="scopedModelDriven" /> <interceptor-ref name="modelDriven" /> <interceptor-ref name="fileUpload" /> <interceptor-ref name="checkbox" /> <interceptor-ref name="staticParams" /> <interceptor-ref name="params"> <param name="excludeParams">dojo\..*</param> </interceptor-ref> <interceptor-ref name="conversionError" /> <interceptor-ref name="validation"> <param name="excludeMethods">cancel,delete,list</param> </interceptor-ref> <interceptor-ref name="workflow"> <param name="excludeMethods">input,back,cancel,browse</param> </interceptor-ref> </interceptor-stack> <interceptor-stack name="fileUploadStack"> <interceptor-ref name="fileUpload" /> <interceptor-ref name="defaultStack" /> </interceptor-stack> </interceptors> <action name="new" class="testapp.CreateAccount" method="show"> <result name="input" type="tiles">account.create</result> </action> </package> </struts> JSP Page (snippet): <s:form action="create" > <fieldset> <p><label>Name</label> <s:textfield name="user.name" cssClass="txt-input small" /> <p><label>Email</label> <s:textfield name="user.email" cssClass="txt-input small" /> <p><label>Site Address</label> <s:textfield name="account.subDomain" cssClass="txt-input small" /> <p><label>Password</label> <s:password name="user.password" cssClass="txt-input small" /> <p><label>Confirm Password</label> <s:password name="user.passwordConfirm" cssClass="txt-input small" /> </fieldset> <s:submit cssClass="button"/> </s:form>
