Internet Information Services (IIS) exposes numerous configuration parameters that affect IIS performance. The below link describes several of these parameters and provides general guidance for setting the parameter values to improve IIS performance.

http://msdn.microsoft.com/en-us/library/ee377050(v=bts.10).aspx

See also

http://mohandeval.wordpress.com/2011/07/11/optimizing-iis7-5-performance/

See also

Prepare servers for better performances (chapter)

Prepare GN4 clients for better performances (chapter)