[jira] [Resolved] (WW-2998) Serious OGNL Performance Issues

["Lukasz Lenart (Resolved) (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/WW-2998?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Lukasz Lenart resolved WW-2998.
-------------------------------

       Resolution: Won't Fix
    Fix Version/s:     (was: 2.3.x)
                   2.3.1
         Assignee: Lukasz Lenart

This is very old issue, please upgrade to the latest available version, support for 2.0.x was dropped.
                
> Serious OGNL Performance Issues
> -------------------------------
>
>                 Key: WW-2998
>                 URL: https://issues.apache.org/jira/browse/WW-2998
>             Project: Struts 2
>          Issue Type: Improvement
>          Components: Expression Language
>    Affects Versions: 2.0.11
>         Environment: Windows XP 5.1 (2Gb, dual-core 1.8GHz), Java 1.5.0_08,  Tomcat 5.5
>            Reporter: Matthew
>            Assignee: Lukasz Lenart
>             Fix For: 2.3.1
>
>
> I am currently running Struts 2.0.11 (planning to upgrade soon) with OGNL 2.6.11 and am having significant trouble with the appalling performance of OGNL.  
> The following XML using Struts 2 Tags and OGNL takes (using the s2 profiling) 2328ms to render
> <%@ page contentType="text/xml" %><%--
> --%><%@ taglib prefix="s" uri="/struts-tags" %><%--
> --%><%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %><%--
> --%><?xml version="1.0" ?>
> <response>
>       <entities>
>             <s:iterator value="entities" id="entity">
>                   <entity <%--
>                   --%>id="<s:property value="id"/>" <%--
>                   --%>name="<s:property value="name"/>" <%--
>                   --%>externalId="<s:property value="externalId"/>" <%--
>                   --%>color="<s:property value="renderColor"/>" <%--
>                   --%>image="<s:property value="image.path"/>" <%--
>                   --%>includeInKey="<s:property value="includeInKey"/>" <%--
>                   --%>orderRank="<s:property value="orderRank"/>" <%--
>                   --%> />
>             </s:iterator>
>       </entities>
> </response>
> The exact same functionality, using JSTL tags and EL, takes 15ms
> <%@ page contentType="text/xml" %><%--
> --%><%@ taglib prefix="s" uri="/struts-tags" %><%--
> --%><%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %><%--
> --%><?xml version="1.0" ?>
> <response>
>       <entities>
>             <c:forEach items="${entities}" var="entity">
>                   <entity <%--
>                   --%>id="<c:out value="${entity.id}"/>" <%--
>                   --%>name="<c:out value="${entity.name}"/>" <%--
>                   --%>externalId="<c:out value="${entity.externalId}"/>" <%--
>                   --%>color="<c:out value="${entity.renderColor}"/>" <%--
>                   --%>image="<c:out value="${entity.image.path}"/>" <%--
>                   --%>includeInKey="<c:out value="${entity.includeInKey}"/>" <%--
>                   --%>orderRank="<c:out value="${entity.orderRank}"/>" <%--
>                   --%> />
>             </c:forEach>
>       </entities>
> </response>
> In this case the S2/OGNL is 150x (!!!!!) slower than the JSTL/EL approach.  Now clearly in this case the JSTL/EL approach can be used to get decent performance, but when using S2's Freemarker based tags that option isn't available.

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