[ Thanks to Dave
Whitinger for this link. ]
The LaTTe virtual machine has been released. It is a freely
available virtual machine intended to execute Java classes. It can
be obtained from http://latte.snu.ac.kr/.
LaTTe is research prototype for the study of dynamic
(just-in-time) compilation techniques. Among its features are:
* A fast and effective JIT compiler with
–
efficient register mapping and allocation
–
“
traditional
”
optimizations (e.g., common subexpression
elimination)
–
object-oriented optimizations (e.g., customization
&
limited
specialization)
* A limited framework for adaptive compilation, which is
currently based on method run counts.
* A reasonably fast bytecode interpreter, intended to be used
with the adaptive compilation framework.
* Lightweight monitors.
* On-demand translation of exception handlers.
* A fast, non-incremental garbage collector.
As a result, the performance of the LaTTe JVM is competitive
with that of commercial JVMs, such as Sun’s Hotspot and JDK 1.2
production release, even without exploiting adaptive
compilation.
LaTTe runs on top of Solaris 2.5 or higher on UltraSPARCs.
Currently, there is no plan to port LaTTe to other platforms.
LaTTe was developed by the MASS Laboratory at Seoul National
University with sponsorship from the IBM T.J. Watson Research
Center.
For downloading, documentation, and support please visit
http://latte.snu.ac.kr/