>>> > > I should have mentioned that
> > > The machine has 320 mb of ram and the test program was run as
> > >
> > > java -Xms32m -Xmx64m TestThreads 1200
> >
> > What do those -X flags do? Are you sure you're not using all
> > the memory?
> > How much swap do you have? Is it being used?
>> See
>http://java.sun.com/j2se/1.4/docs/tooldocs/solaris/javac.html#options>> Type java -X at the command line to see the -X options for a
> particular JVM.
>> -Xmx64m allocates a max heap size of 64M for the JVM -
> increase this to be greater than the memory required (as much
> as possible if this is the main application the box is
> running). The more memory you can give, the less often the
> garbage collector will need to kick in boosting performance
> quite a bit.
>> You should probably look into threadpooling also to cut out
> the Thread creation overheads which can be fairly high,
> especially on Linux.
>> Cheers,
> jr
>
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