Editor note: This blog is originally published by Jose Reyes - ASP.NET on 02-29-2012 in Web Performance Blog , which will be obsolete soon. Future ASP.NET related performance blogs will be posted here. Introduction. A couple of new features are introduced in ASP.NET 4.5 to improve startup time of web apps. Both features use a flag on the web.config to enable them. The features don’t do any magic by themself. They just enable features available on the operating system underneath or in the CLR APIs. Prefetch feature The prefetch feature only works on Windows 8 Server or newer OS. It requires the Os to be configured and the enablePrefetchOptimization flag on the <system.web/compilation> section of web.config to be set. The flag only...(read more)
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