Improving Your Microsoft ASP.NET Application Performance with Asynchronous Pages and Actions

Tiberiu CovaciSenior Technical TrainerMany-core

DEV 335

Who am I?

Tiberiu ’Tibi’ CovaciSoftware engineer, over 20 years experienceMCT since 2004, teaching .NETResearcher at KTHSweden .NET User Group LeaderINETA Country Lead for SwedenTelerik MVP & Insider@tibor19 #msteched

Agenda

ASP.NET Page lifecycleLoad test your applicationAsynchronous pagesAsynchronous actionsAsync support in C# vNext

ASP.NET Page lifecycle

Init

Load

PreRender

PreRenderComplete

demo

Introducing the Application

ASP.NET Asynchronous Page lifecycle

Init

Load

PreRender

PreRenderComplete

Async calls

Synchronous vs Ansynchronous

SynchronousCall method => Wait for resultOne method at a timeEasy to program/understand

AsynchronousCall method => Return right awayResult / method completion provided via callbackRun several methods at the same timeScalabilityHarder to program

demo

Asynchronizing the Application

Async support in C# vNext

“Looks like” synchronous programmingUses Task/Task<T> behind the courtainsTwo new contextual keywords

async marks a method as asynchrnousawait yields control while waiting on a task to complete

demo

Modernizing the Application

Summary

ASP.NET Page lifecycleLoad test your applicationAsynchronous pagesAsynchronous actionsAsync support in C# vNext

Thank youtibi@multi-core.nethttp://blog.multi-core.nethttp://msdn.com/concurrency

Web Track Resources

http://www.asp.net/http://www.silverlight.net/http://www.microsoft.com/web/gallery/http://www.iis.net/http://weblogs.asp.net/Scottgu/http://www.hanselman.com/blog/

Resources

www.microsoft.com/teched

Sessions On-Demand & Community Microsoft Certification & Training Resources

Resources for IT Professionals Resources for Developers

www.microsoft.com/learning

http://microsoft.com/technet http://microsoft.com/msdn

Learning

http://northamerica.msteched.com

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