[morph-developer] Morph Performance

[Matt S. <mat...@sp...>]

Hi again Matt,

I don't think I addressed one of your questions regarding Morph's 
performance.  In general I've found Morph's performance to be an 
insignificant contributor to the overall performance of the programs 
I've worked on.  I did some extensive performance tuning of my company's 
product a year or so ago and found Morph was taking too long in some 
circumstances.  I made some changes then to fix the performance issues I 
found and that seemed to do the trick.  I did these measurements using 
JProbe.

The only time I consider Morph to be inappropriate is if it is being 
called thousands of times in a single user interaction and a direct call 
to the Java libraries will suffice.  For example, for displaying a large 
table of numbers through a JSP, I changed my calls from something like 
Morph.convertToDouble to a simple call to new Double(string) or 
something similar.

Any time you're using all this OO-design, reflection, etc. you are going 
to have a slower end result than if you had done things with direct 
calls to the Java libraries.  However, Morph isn't an order of magnitude 
slower than doing things manually.

Matt

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