Importance

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Abstract

A Web system includes a server which receives URL requests from client computers and responds by transmitting the requested data to the clients along with performance monitoring instructions. These instructions cause the clients to send performance message back to the server indicating the time required on the client for certain acts associated with transmitted data. Often they cause a client to monitor the time required to download a composite data object, such as a Web page which include separately downloaded images, frames, or applets. They can also instruct the client to measure other times, such as the time required to download individual component objects; to execute given code, or to execute a transaction. Preferably the server includes means for automatically analyzing the performance messages it receives to detect different types of performance problems. It is also preferred that the system automatically respond differently to such different types of problems, including varying the performance monitoring instructions it sends, sending messages to clients informing them of the types and locations of problems detected, automatically sending out leaner versions of Web pages, offering clients options to deal with problems, informing the server's operator of problems, throttling certain types of URL requests, increasing the system's capacity, and varying IP spreading as a function of performance monitoring information.

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First Claim