Re: Death of the RPG Programmer

[John Earl <johnearl@xxxxxxxxxxxxxxx>]

Phil Hall wrote:

> > IBM has claimed that optimizing at level 40 should make Java perform as
> > though it were compiled.  I think that's stretching it a bit.

Are you speaking of QSECURITY level 40?????

>
>
> This is true. If you look at the reported documentation to support this, the
> Java bytecode (i.e. the binary Java object code that the JVM interprets) is
> converted to w-code (the intermediate ILE representation format) and then
> passed to the backend program translator CUBE3. CUBE3 then creates a PowerPC
> RISC instruction stream from the w-code and creates a true RISC compiled
> binary program object. On executing your new optimized Java program, the JVM
> under the covers does a looksee to find out if the source Java object
> differs from the native RISC object, if not it runs the native object and
> thus you *are* running compiled code, at compiled code speed.
>
> Very similar to the JIT compile JVM support on Windows/Unix.
>
> --phil
>
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--
John Earl                               johnearl@400security.com
The PowerTech Group                     206-575-0711
PowerLock Network Security              www.400security.com
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