I also have this problem. Running under JBoss 2-4-6 Tomcat 4.0.3 on Win2K. Pages with large number of items in a dropdown box take ages to display. Show stopper...
"Peter Kelley" <[EMAIL PROTECTED]> wrote in message news:[EMAIL PROTECTED]... > Matt, > > The problem seems to be with including selectmap.jsp when there is a > value selected that is obtained from the action. The performance > slowdown is proportional to the number of items in the select list. > > For example we have a drop down that has the possible values for days > in a month, the numbers 1 to 31. If the value of the control is set to > today's date it consistently takes 9 seconds to execute. If we take > out the code that sets the date it executes in a few milliseconds. > > By running our page in the debugger the method that seems to > be taking all the time is: > > rd.include(aContext.getRequest(), res); > > at line 54 in webwork.view.taglib.IncludeTag > > Since we are using JBoss 3.0 this all runs under Tomcat 4.0.3 - the > only servlet container currently integrated with JBoss out of the box. > We have tried Tomcat 4.0.4 integrated with JBoss with no better > performance but Tomcat 4.0.4 standalone seems to be OK. > > I have attached a test case that demonstrates the problem. To run it > unzip the files into a directory called test.war under the JBoss 3.0 > server directory of your choice and then browse to > http://localhost:8080/test and follow the link. This page is taking 14 > seconds to draw the list control on my system. > > Friday, June 21, 2002, 10:19:55 PM, you wrote: > > MB> Can you submit a simple example that illustrates the problem? > > MB> -Matt > > MB> ----- Original Message ----- > MB> From: "Peter Kelley" <[EMAIL PROTECTED]> > MB> To: "Chris Miller" <[EMAIL PROTECTED]>; > MB> <[EMAIL PROTECTED]> > MB> Sent: Friday, June 21, 2002 4:03 AM > MB> Subject: Re: [Webwork-user] Re: Performance of ParameterAware > > > >> Chris, > >> > >> I just managed to get a run in OptimizeIt and 95% of the time is being > >> spent in java.lang.reflect.Array.newInstance(). Along with the fact > >> that there are 10-20 getParameter calls for each control does this > >> suggest anything to anybody ? The pattern seems to be: > >> > >> Get the control value from the method in the action > >> Call getParameter on the action a few times very quickly > >> Do something else that we are not logging, sometimes for a second or > >> more. > >> Get the next control value > >> etc... > >> > >> Any ideas as to how we can solve this ? > >> > >> BTW, the reason we are using parameter aware is that we have input > >> controls inside an iterator tag and we need to be able to get the > >> values for each of the controls when the form is submitted (and > >> display them if the same page is re-displayed). If there is another > >> recommended way of doing this I would be interested in finding out. > >> What would be really cool is if webwork supported indexed properties > >> (a little used feature of Java beans) on actions but I can't see this > >> documented anywhere. Should this be a feature request ? > >> > >> Thursday, June 20, 2002, 10:52:24 PM, you wrote: > >> > >> CM> Have you tried with Tomcat 4.0.4 and/or 4.1.5, or even better, a > MB> different > >> CM> servlet container (Orion, Resin, ...)? There have been changes in the > MB> latest > >> CM> builds of Tomcat that can provide large performance improvements in > MB> many > >> CM> circumstances. > >> > >> CM> Also, it sounds like you've done some profiling - where is the > MB> majority of > >> CM> the time being spent? > >> > >> CM> Note that I'm not trying to discount the possibility of this being a > MB> WW > >> CM> issue, just trying to help narrow down the source of the problem. > >> > >> CM> Regards, > >> CM> Chris > >> > >> >> We have an admittedly complex JSP page that is taking between 20 and > >> >> 30 seconds to load, even after a first view. There are 3 actions on > >> >> the page in addition to the calling action but each of them is taking > >> >> 20-30 milliseconds to run. There appear to be a large number of calls > >> >> to the getParameter() method on the main action for each control on > >> >> the page. > >> >> > >> >> Any ideas ? > >> >> > >> >> Jboss 3.0 with Tomcat 4.0.3 > >> >> Webwork 1.1 > >> >> Windows 2000 Professional > >> >> > >> >> -- > -- > > regards, > Peter Kelley > > MoveIt Pty Ltd > > "If you want to build a ship, don't drum up the men to > gather wood, divide the work and give orders. Instead, > teach them to yearn for the vast and endless sea." > - Saint-Exupery ------------------------------------------------------- Sponsored by: ThinkGeek at http://www.ThinkGeek.com/ _______________________________________________ Webwork-user mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/webwork-user
