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| Open Dos - An Open Source Dynamic Optimization System
Dynamic optimization refers to the runtime optimization of a native
program binary. Dynamic binary optimization is an important area for
compiler research, because the additional information available at
runtime can substantially improve the effectiveness of optimizations
that can be performed at runtime. The challenge is to monitor a process
during its execution and optimize the static part of the binary. We
are building a system for monitoring and modifying a program's
behavior while it is execution, without changing the semantics of the
code. The basic idea of our system is to group a program's static
instruction sequences into traces, optimize those traces, store the
optimized trace in a software-based code cache, and then execute the
optimized code in the code cache. As the runtime environment exposes
several execution paths that have not been discovered during static
optimization, it gives us several opportunities for performing
optimizations even though the binary is strongly optimized statically.
Several dynamic optimizers like Dynamo, Dynamo-Rio, Mojo have been
implemented none of them being an Open Source [1]. Hence research in
this area is substantially difficult. In this report we describe the
design and high-level implementation of our dynamic optimization
system.
This is a very early version of the system, which has been tested
completely on Fedora core 3 distro. So, kindly don't expect it to be
complete.
Kindly give your reviews on it.
For further queries or to be a part of the development team:
You can download the source from :
http://sourceforge.net/project/show...lease_id=434335
Mail : opendos@gmail.com
Group : opendos@googlegroups.com
http://groups.yahoo.com/groups/opendos
Blog : http://opendos.blogspot.com
Regards,
OpenDos Team.
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