Abstract

Citrix Systems, Inc. commissioned The Tolly Group to measure the performance and scalability boost that Citrix Presentation Server 4.0 brings to a Windows Server 2003 Terminal Services server deployment.

Tolly Group engineers measured the time taken to execute a specific task across 9 and then 18 simultaneous, simulated users on both Citrix Presentation Server and Microsoft Windows Server 2003 Terminal Services environments. Test scenarios for 9 and 18 simultaneous consisted of measuring the elapsed time (in seconds) needed to complete a simulated user task on both Citrix Presentation Server and Windows Server 2003 Terminal Services under three different scenarios: (1) the time with no additional processor load on the server, (2) the time with 50% processor load on the server and (3) the time with 80% processor load on the server.