GUI Level Testing

Silk Performer supports GUI-level load testing (load testing of fat-client applications). To test these applications, Silk Performer uses Windows Remote Desktop Services (Terminal Services) to connect to and open client sessions on agent computers. Silk Test launches clients, runs GUI level tests, and communicates results back to Silk Performer.  A GUI-level testing session is opened through the Remote Desktop protocol. This connection is established without a GUI. 

Note: GUI-level testing only works on Windows server edition platforms. Windows Home or Professional editions can only be used as agents for a single GUI level testing virtual user.


Windows Server operating systems is required on all agent machines (2008 R2 and 2012).

Premium Virtual User license for Silk Performer.

Interactive login must be disabled in Windows Server.

Per Device client access licenses are recommended for Terminal Services.

Windows user accounts need to be members of either the remote desktop or administrator group.

Specific Windows configuration is available in the Silk Performer User Guide under START | PROGRAMS | SILK | SILK PERFORMER X.X | DOCUMENTATION | USER GUIDE. Details are also provided via the Silk Performer help - SILK PERFORMER | HELP | CONTENTS.


Due to the factors involved, GUI level testing uses more resources than other load testing methods and due to this the number of virtual users which can feasibly run on an agent machine concurrently is reduced. In order to get an accurate reflection on the number of virtual users that an agent can withstand during a GUI-Level load test, it would be a recommendation that some diagnostic tests be carried either through the Evaluate Agent Capacity option within Silk Performer. 

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