ATG's Dynamo 5.0 does. I managed to get struts
working on it, but then I had problems with includes
and security constraints. I guess they'll get
everything ironed out if they haven't already. I
haven't looked at it since December. When I had
problems, I switched to Tomcat.
David
--- Coty Rosenblath <[EMAIL PROTECTED]> wrote:
> Can Craig or anyone else comment on which servlet
> containers/JSP compilers
> (if any) currently do any such optimization of
> custom tag creation, etc.?
>
> Thanks,
> Coty
>
> -----Original Message-----
> From: Craig R. McClanahan
> [mailto:[EMAIL PROTECTED]]
> Sent: Monday, February 05, 2001 3:04 PM
> To: [EMAIL PROTECTED]
> Subject: Re: Performance Issues with Struts
>
>
> Rajan Gupta wrote:
>
> > Has anybody used Struts in a largescale
> application and witnessed
> > performance issues. It seems to me that the cost
> of creating & destroying
> > tags in a JSP page would create a lot of overhead
> on the JVM.
>
> There is no requirement that custom tag instances be
> created and destroyed
> every time. In fact, the spec has a lot of explicit
> stuff to enable pooling
> of custom tag instances that have the same set of
> attribute values
> specified. Many servlet containers (including
> Tomcat) do not yet take
> advantage of this, and generate pretty stupid code.
>
> One other thing to note -- the overhead cost of
> object creation and
> destruction varies by VM, but in general is
> *substantially* lower in modern
> 1.2 and 1.3 VMs, so the whole issue has less
> performance impact than it used
> to.
>
> > By putting
> > all HTML elements as tags would there be not a
> significant overhead of
> > creating & destroying the tags. Of course the
> destroying would be handled
> > by the garbage collector, but that could get
> significant.
> > If all HTML code are tags, simple IF-ELSE
> statements are also tags and
> > typically you could have more than 2-5 IF
> statements in a page.
> >
>
> As above, you are starting from an incorrect
> assumption about tag instance
> creation. A smarter JSP page compiler will do a
> much better job than
> current
> implementations do -- and this will be a particular
> area of focus in Tomcat
> 4.0 as time goes on.
>
> >
> > Is there some type of optimization built in struts
> to handle it or I am
> > missing something in my understanding.
> >
> > Thx in advance for your responses.
> > Rajan
> >
>
> Craig McClanahan
>
>
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