Abstract: Techniques for identifying an object are disclosed herein. In one embodiment, an object identification system includes a reference to an object acted on at a first time, an elector, and a elector manager. The elector is configured to provide an appraisal, at a second time, of whether a candidate object is the objected acted on. The elector manager is configured to determine whether the candidate object is object acted on based on a value of the appraisal.

Abstract: A load testing system for testing a web site or other type of server system uses a thread architecture that reduces the computing resources needed to generate a desired load. The load testing system runs several virtual users on one or more clients to simulate user interactions with the web site. Each virtual user is executed as a virtual user thread under a process on a client computer. Each virtual user thread itself establishes and supports multiple connections to the web site; therefore, an additional thread need not be created for each connection. For each connection, the virtual user thread performs a sequence of functions in an asynchronous mode to establish and support the connection. If a function cannot complete without blocking, it immediately returns a RESOURCE UNAVAILABLE error code. If a function returns a RESOURCE UNAVAILABLE code, the calling thread switches execution to another task.