By Richard Kiessig, Rick Kiessig

Ultra-Fast ASP.NET offers a pragmatic method of development speedy and scalable sites utilizing ASP.NET and SQL Server. as well as a wealth of suggestions, tips and secrets and techniques, you can find recommendation and code examples for all ranges of your software, together with the buyer, caching, IIS 7, ASP.NET, threads, consultation nation, SQL Server, research providers, infrastructure and operations. by means of utilising the ultra-fast method of your tasks, you’ll squeeze each final ounce of functionality from your code and infrastructure—giving your website unmatched pace. The process is generally prescriptive; instead of drowning you in suggestions, the booklet provides and explains particular high-impact concepts and demonstrates them with specific examples. utilizing this information, you'll soon be development high-performance websites that scale simply as your web site grows. What you’ll research a manner of wondering functionality matters to help you receive genuine effects. the way to observe key ideas to help you construct ultra-fast and ultra-scalable websites. find out how to use the ultra-fast method of be quick in a number of dimensions. You’ll haven't in basic terms quick pages but in addition quick alterations, quickly fixes, speedy deployments and extra. ideas which are getting used through a number of the world's biggest websites. easy methods to constitution your HTML and CSS to create pages that load ultra-fast. suggestions for utilizing Silverlight, Ajax and IIS 7 to enhance the functionality of your web site. find out how to use entire caching in any respect levels to carry content material speedier. Why you need to keep away from conventional consultation kingdom and the way to make the easiest use of cookies. counsel and tips for optimizing your ASP.NET and SQL Server code for functionality and scalability. how you can use research providers to dump your relational database. Why many websites that serve person pages fast aren't scalable. easy methods to keep away from universal pitfalls which can have an opposed influence in your site’s functionality, either now and because it grows. easy methods to practice an end-to-end systems-based method of site functionality and scalability, consisting of every thing from the browser and the community to caching, back-end operations, infrastructure, and your software program improvement method. Who this ebook is forThis booklet should be precious for intermediate to complex builders and designers who are looking to increase the functionality in their ASP.NET-based sites. a few wisdom of ASP.NET, SQL Server, and IIS is believed. instance code is supplied in C#. skilled internet builders who've lately moved from Java or Hypertext Preprocessor to .NET will locate plenty of helpful and engaging details. This ebook may also be precious for non-developers who've a technical curiosity in what makes an internet site quick. specifically, if you’re concerned with website operations, trying out, or administration, you can find a few of the principals and matters that your improvement groups can be addressing, besides demonstrations that aid force the issues domestic. desk of Contents rules and process consumer functionality Caching IIS 7 ASP.NET Threads and periods utilizing ASP.NET to Implementand deal with Optimization concepts handling ASP.NET software regulations SQL Server Relational Database SQL Server research providers Infrastructure and Operations placing all of it jointly

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Gif" height="16" width="16" /> Here’s the resulting timeline: The HTML takes about the same amount of time to load, as does the first image. However, now IE requests all of the other images at the same time. Notice that there is significant overhead in opening the connections. 92 seconds vs. 00 seconds). IE behaves very differently when it uses a visible proxy. For example, loading this same page when Fiddler is active results in the following timeline: 20 CHAPTER 2 ■ CLIENT PERFORMANCE IE loads the images two at a time, just like when they all came from the same domain.

In those cases, you should in general prefer PNG or GIF to BMP. PNG files tend to be smaller, and the format supports alpha channels for variable transparency (blending) as well as gamma correction and progressive display (interlacing), which the other lossless formats do not support. For larger PNG files, encoding them with progressive display is desirable, in keeping with our principle for focusing on perceived performance. A page doesn’t feel as slow when the browser progressively renders large images.

See Chapter 10. • Understand how SQL Server manages memory. For example, when a T-SQL command modifies a database, the server does a synchronous (and sequential) write to the database log. Only after the write has finished will the server return to the requestor. The modified data pages are still in memory. They will stay there until SQL Server needs the memory for other requests; they will be written to the data file by the background lazy writer thread. This means that SQL Server can process subsequent read requests for the same data quickly from cache.

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