Active Directory Performance Testing Tool (ADTest.exe)

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ADTest.exe is an Active Directory load-generation tool that simulates client transactions on a host server to assess the performance of the Microsoft® Active Directory™ within Microsoft® Windows® Server 2003 and Microsoft® Active Directory Application Mode™.

ADTest is an Active Directory load-generation tool. It allows you to simulate client transactions on the host server. By varying client load, you can relate the transaction rate to resource utilization on the server and get some idea about the requirements for your environment. Because ADTest can perform generic Active Directory requests, it can also create an organizational unit structure inside Active Directory. You can add many organizational units and user objects in those ADTest-created organizational units. You can also add attributes to the user objects. Once you have created the Active Directory structure you require, you can use ADTest to perform various Active Directory requests, including Modify and Search. Several pre-built tests have been written to reproduce some typical activities you might want to evaluate. Examples of these pre-built tests are: an interactive logon, a batch logon, a search for a random user, and a modification of an attribute of a random user. By varying your hardware environment or other test parameters, you can gain insight into the performance sensitivities of your particular setup.

Remember that benchmarking and performance exercises are useful for comparing platforms or for getting a general understanding of the hardware requirements for common implementation scenarios. However, because these tests are run in constrained environments, such as an isolated lab, they do not necessarily translate directly to deployable scenarios. Therefore, it is important to understand that while this tool is meant to help you prepare for a fairly comprehensive server-sizing and capacity-planning effort, any data generated is only meant for general sizing, benchmarking, or deployment recommendations.

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