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  • Book Overview & Buying ASP.NET Site Performance Secrets
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ASP.NET Site Performance Secrets

ASP.NET Site Performance Secrets

By : Mattijs Perdeck
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ASP.NET Site Performance Secrets

ASP.NET Site Performance Secrets

5 (6)
By: Mattijs Perdeck

Overview of this book

Do you think that only experts with a deep understanding of the inner workings of ASP.NET, SQL Server, and IIS can improve a website's performance? Think again – because this book tosses that notion out of the window. It will help you resolve every web developer's nightmare – a slow website – with angry managers looking over your shoulder, raging calls from advertisers and clients – the lot. You don't have the time or energy to gain a thorough and complete understanding of ASP.NET performance optimization – You just need your site to run faster! This book will show you how.This hands-on book shows how to dramatically improve the performance of your ASP.NET-based website straight away, without forcing you through a lot of theoretical learning. It teaches you practical, step-by-step techniques that you can use right away to make your site faster with just the right amount of theory you need to make sense of it all.Start reading today and you could have a faster website tomorrow.Unlike other performance-related books, here you'll first learn how to pinpoint the bottlenecks that hold back your site's performance, so you can initially focus your time and energy on those areas of your site where you can quickly make the biggest difference. It then shows you how to fix the bottlenecks you found with lots of working code samples and practical advice, and just the right amount of theoretical detail.The first chapter details techniques for diagnosing performance issues using Waterfall charts. Subsequent chapters then each focus on one individual aspect of your website, providing you with numerous real-life scenarios and performance-enhancing techniques for each of them. In the last chapter, you learn how to effectively load-test your environment in order to measure the change in performance of your site without having to update your production environment – whether it is a new release or simply a small change in the database.
Table of Contents (19 chapters)
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ASP.NET Site Performance Secrets
Credits
About the Author
About the Reviewers
Preface

Asynchronous file writes


We've now seen how to asynchronously access the database and a web service. Another area where asynchronous coding may bring performance benefits is writing files to disc after they have been uploaded using the FileUpload control.

Synchronous version

You'll find this code in the downloaded code bundle in the folder ThreadStarvation_FileWrite_Sync. When you open the website in Visual Studio, you'll find that it stores uploaded files in a folder images. When you publish the website, to enable the website to write files into that folder, give user IIS_IUSRS modify permission to that folder:

  1. 1. Right-click on the images folder. Click on Properties | Security | Edit.

  2. 2. Select IIS_IUSRS in upper-pane (add it if it isn't shown).

  1. 3. Check the Allow checkbox in the Modify row and click on OK.

Using a FileUpload control synchronously is pretty easy. You put it on a .aspx page, together with a button to initiate the actual upload and a label control for error messages, shown as...

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