Web performance & web application monitoring: tools to optimize websites. Performance: Profiling how different web sites use browser subsystems - IEBlog. When we first showed IE9 at the Professional Developers Conference last fall, we discussed how real world browser performance involves many different subsystems.
Different websites use these subsystems in different ways, and to build a fast real world browser you have to start by understanding these overall patterns. This post provides an inside look at how these subsystems impact the performance of five real world websites. We use Internet Explorer 8 for this analysis, and as IE9 approaches we’ll talk more about how these performance characteristics evolve. All modern web browsers are conceptually similar. C Web Performance Working Group.