Re: Reflection for custom taglibs killing performance...

[Tim Funk]

To execute a tag file requires creating some new objects which migh have an 
overhead not quite comparable to RequestDispatcher.include()

Thats probably the issue.
-Tim
Kevin Burton wrote:
Tim Funk wrote:
Its not reflection killing you. For example, time this:
<%=System.currentTimeMillis()%>
<c:forEach begin='0' end='${param.iterations}'>
  ${more.cowbell}
</c:forEach>
<%=System.currentTimeMillis()%>
Where more is any java object and cowbell is a property 
(getCowbell()). In simple timing trials - even where iterations is 
greater than 2000 - I get subsecond response time.

I think something else is going on here then.  I actually rewrote the 
above code to use a custom tag which I KNOW is slow in our system and 
even with 10000 entries its very fast.

Though when I took our production code and converted it from .tag files 
to jspfs it was 100x faster.
So the issue is what has changed between the two code bases to make it 
THAT much faster.

Its got to be some caching system or so forth.  Maybe Tomcat can only 
cache so many methods and is recreating them.
So its clearly not JUST reflected methods its something else on top of 
it....

Any other ideas?
Kevin
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