Re: JIT happens?

[David Neumann <dneumann@apple.com>]

> But...  I noticed no speed difference whatsoever, and a friend at Apple
> warned me there were bugs using the JIT.  I didn't run into the bugs, but

You might not run into bugs in the later versions of the JIT in Sun's
JDK. But the version available at the time WO4 was built DID have bugs
that in some circumstances caused problems that did NOT occur with the
JIT turned off.  Then again given your problem domain you might not
encounter the same problem space... and if you do you can always go back
to the non-JIT.  

On the subject of conversion, I've noticed that these things do take a
few hours but some can take maybe as long as a week if you have hundreds
of thousands of lines of code but MOST of what is going on is simple
string replacements NS here, and EO there. And the scripts do that grunt
work for you. In most cases the legwork will be worth it cuz WOF/EOF can
subsume code you used to have to maintain (FileUpload, EOUtilities,
EOFetchSpec builder, Image handling, WOLongRunningResponse Page, etc.). 
I personally have been pleasantly surprised by how easy it has been to
convert even complex apps so I hope the problems that some have
experienced aren't the rule.

d



Randy Wigginton wrote:
> 
> >Happy new year,
> >
> >just installing wo4final and rebuilding my apps. the java jit compiler
> >is still disabled.
> >does anybody know when we can expect a working JIT java compiler for
> >WO4? Has anybody tried the Java 2 jdk?
> >
> >-karsten
> >
> >
> I don't have the instructions handy, but if you download the JIT from the
> javasoft site, you can put it in the right place and it starts working
> automagically.
> 
> But...  I noticed no speed difference whatsoever, and a friend at Apple
> warned me there were bugs using the JIT.  I didn't run into the bugs, but
> since there was no noticeable speed improvement, why bother?
> 
> -- randy