Hewlett-packard Development Company, L.P.

Timesys Corporation

Ashish G Karkare

Timothy Chester O'Konski

Peter Cadwell Dibble

Joseph A Coha

Pratik Solanki

Ryan Mathus

Alex Tsariounov

Amir Afghani

The invention relates to optimizing software code execution during state transitions. The system handles changes in execution context using differential rule checking techniques. For instance, when a thread executing in a data processing system changes state, its new state may be subject to different rules than its previous state. To enforce these rules, the thread may be associated with software code that causes certain restrictions, such as memory restrictions, to be applied to the thread. In an interpretive environment, this can be implemented by detecting a state transition in an active thread, and responding to the state transition by associating the thread with a dispatch table that reflects its state change. The dispatch table may cause the thread to be associated with code that enforces those restrictions. In one example, different dispatch tables can be provided, each table reflecting a different state of a thread, and each causing a thread to be subject to different restrictions. In another example, the same dispatch table can be rewritten to accommodate the changed state of the thread.

Multiple code sets for multiple execution contexts

A system and method for profiling the runtime environment of a software application written in a platform-independent (e.g. platform neutral) programming language. Such a software application can invoke a non-application-code component to facilitate the functioning of the software application. The profiling tool and method can generate runtime profiles relating to both the software application and the non-application-code component invoked by the software application.

Runtime profiling of platform-independent software applications

The present invention is a method for communicating diagnostic data. In one embodiment, a platform specific characteristic of a computer is ascertained using a computer application that is compliant with a platform independent specification. A message is received requesting diagnostic information about the computer, and a reply is sent conveying diagnostic information about the computer.

Method for communicating diagnostic data

A method for optimization of memory usage for a computer program. Memory usage data is received wherein the memory usage data comprises timing information. A graphical representation of the memory usage data is generated. At least one heap parameter is received. A memory usage simulation is performed based on the memory usage data and the heap parameter.

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San Jose, CA, United States of America

Ashish G Karkare