International Business Machines Corporation

Scott H Snyder

Martin J Presler-Marshall

Patrick Joseph O'Sullivan

Al Chakra

David Mark Ogle

Arthur R Francis

Susan S Hanis

Stephen T King

A presence system comprises a presence server and a plurality of users in a distributed community of users that are associated with the presence server. The presence server selects a set of mediators, e.g., based upon a predetermined event, or other suitable factors, wherein each mediator is associated with a subset of the plurality of users. The presence server communicates presence information to the mediators where each mediator receives presence information regarding subscribed-to presence information for the users in their associated subset of users. Each mediator communicates the subscribed-to presence information to associated ones of the users in their associated subset of users.

Autonomic optimization of presence server performance

The present invention is a method, system and apparatus for reducing the run-time cost of invoking a server page. The system can include a server page translation unit configured to translate a server page document into program code. The system also can include a program code compiler configured to compile the program code into a program object. Finally, the system can include an optimization processor programmed to modify the program code to permit direct invocation of the program object by external program objects bypassing a server engine typically used to invoke the server page. Notably, in a preferred aspect of the invention the server page can be a JSP. Similarly, the program code can be Java source code and the program object can be a Java class. Finally, the external program objects can be servlets.

Reducing the run-time cost of invoking a server page

The present invention is a method, system and apparatus for modifying a server page to reduce the cost of incorporating a custom tag in the server page. Specifically, the method can include the step of modifying program code translated from a server page to replace at least one method defined in the program code and corresponding to a custom tag with an optimized method defined for the custom tag. The modifying step further can include the step of modifying the program code prior to compiling the program code into a directly callable program object. Alternatively, the modifying step further can include the step of modifying the program code by modifying byte code produced by compiling the program code.

Reducing the run-time cost of incorporating custom tags in a server page

A simulated collaborative mix workload for determining the performance of enterprise software includes a combination of mail, instant messaging, electronic meetings, documents, and electronic learning. The workload is generated by executing a team spaces path, documents path, learning path, messaging path, web conference path, or various combinations thereof. The team spaces path generates a simulated discussion with team members and generates a search query for locating a forum within the team space. The documents path generates a library search to locate, open, and read the document, and generates a simulated chat about the document. The learning path launches a simulated course and assessment activity. The messaging path reads a simulated email, attaches a document thereto, and sends the email. The web conference path generates a web conference attended by a plurality of simulated users. At least one of the workload tasks is performed more than once.

Growing community of inventors

Chapel Hill, NC, United States of America

Scott H Snyder