Hi Joe, i had similiar problem in struts On 25/06/2008, yorlick kilroy <[EMAIL PROTECTED]> wrote: > Thanks for the performance-tuning links Dave. I Found a couple of > useful hints there. > Still... the "problem" seems to be the OGNL implementation in struts2. > It seems to me as if one should be VERY careful when using OGNL i.e. > make use of it very sparingly. in some of my jsps I descend fairly > deeply into my complex value objects consisting of maps and lists etc. > I dont have any benchmark results but it "feels" like the time taken > to render a jsp with lots of OGNL expressions increases exponentially > proportional to the depth of the used OGNL expression, for example: > > <s:iterate ... > > <s:property value="#object.a.b.c.name"/> > <s:property value="#object.a.b.c.phone"/> > </s:iterate> > > Which isn't a performance problem when writing the above code in pure > java - only when done in struts2 OGNL > > Can anyone confirm this? > > Perhaps OGNL is only meant to be used for accessing only immediate > properties of an object and not to descend down into complex > tree-object-graphs.? > > --- Joe > > On 6/24/08, Dave Newton <[EMAIL PROTECTED]> wrote: > > http://struts.apache.org/2.x/docs/performance-tuning.html > > > > Dave > > > > > > --- On Tue, 6/24/08, yorlick kilroy <[EMAIL PROTECTED]> wrote: > > > >> From: yorlick kilroy <[EMAIL PROTECTED]> > >> Subject: Slow performance with Struts2 > >> To: user@struts.apache.org > >> Date: Tuesday, June 24, 2008, 10:23 AM > >> Hi, > >> > >> I was wondering if there is a way to tweak struts2 > >> performance. > >> I ported an old struts1 application to struts2. I have jsps > >> that have > >> rather large and complex lists that I now iterate using > >> Struts2 > >> <s:iterate> and OGNL instead of <logic:iterate> > >> and EL used in > >> struts1. I noticed that the performance using Struts2 is > >> pretty much > >> lower than that of the Struts1 application, especially when > >> displaying > >> large lists and descending into complex objects using OGNL. > >> I read that using dojo can cause this, but as far as I know > >> I'm not > >> (consciously) using dogo, ajax etc. just plain struts2 > >> core. > >> > >> -- Joe > >> > >> --------------------------------------------------------------------- > >> To unsubscribe, e-mail: [EMAIL PROTECTED] > >> For additional commands, e-mail: > >> [EMAIL PROTECTED] > > > > --------------------------------------------------------------------- > > To unsubscribe, e-mail: [EMAIL PROTECTED] > > For additional commands, e-mail: [EMAIL PROTECTED] > > > > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > >
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