🚀 go-pugleaf

"Elias A. Fayyad" wrote:

> Greetings,
>
> Does anyone out there have pointers to books or information to
> tuning the performance of a Java (specifically JBuilder)
> application?  We're experiencing some performance problems, and
> we've looked at the logical things (un-necessary object
> instantiations, etc.), but if anyone can point to some written
> resources, that would be much appreciated.

If you aren't using a JIT, I'd recommend it.  I did some performance tests
when I was writing my object recycling routines.  It turns out that JIT+no
recycling compared very similarly with no JIT+recycling.  (JIT+recycling
was even fast with a more even performance curve.)

Second recommendation is to look at the data structures you use.  If you
make extensive use of arrays and vectors, it might be better to analyze the
situation for the best structure.  A few quick examples:
    Hashtable = data lookup by keys but no need to do index scans
    Trees = data lookup by keys and index scans
    LinkedList = very few lookup capabilities needed (e.g. Stacks & Queues)

If nothing else works, brute force may be your answer.  Look into more CPU
power, more memory or faster JVMs like Netware5.