For speed issues w/ regard (strictly) the compilers, check the volano report
at http://www.volano.com
TowerJ isn't THAT expensive if the make or break for your app is
speed/scalability (i.e.. the app doesn't crash the inadequate hardware
you're stuck with and TowerJ is available for the hardware/OS environment).
Depending on platform, you might also check Jikes, we got about 60 - 120%
speed-up after we found the bottlenecks in the code and eliminated them (of
course, depends on platform/OS, as you can see in Volano).
My experience with EJB and scale/speed is that the following is true, as to
what is _REALLY_ the problem, more often than not:
1. Bad design and failure to correctly spec and use _all_ of the tools J2EE
gives you.
2. Bad infrastructure (inadequate Db connection pools available,
inadequately planned bandwidth needs, insufficient attention to the
realities of the entire universe the app is running in).
3. Bad Java code (inconsistent use of threading, bad choices of data
acquisition model, insufficient attention to the run-time load of the code
you're writing).
4. EJB model itself.
Just my $0.02, FWIW.
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]]On Behalf Of Jens Stutte
Sent: Monday, February 05, 2001 3:02 AM
To: Orion-Interest
Subject: Any experiences with bytecode to native compilers and orion ?
Hi all,
i'd like to ask, if anybody has some experience with bytecode to native
compilers in conjunction with orion. Unfortunately, the vendors of this
products do not offer evaluation downloads (comprehensable, since often one
compiler run would make it to speed up an existing product ;). I'd like to
hear if someone has any experiences with TowerJ (though i'm quite sure that
my company cannot afford it...), Jove (http://www.instantiations.com, they
advertise with "IBM Netfinity proven", so probably it works with orion,
too?) or BulletTrain (http://www.naturalbridge.com) and orion. First of all:
Does it work at all with any of these products? And then: does it help? Our
application in development is using EJBs very heavily, so any improvement
either in the jdbc driver or within orion itself would help very much (our
own code does not matter much).
Regards and thank you,
Jens Stutte
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