1. Improving the Availabilityof Your Website inASP.NET MVC4GABRIEL ENEAMICROSOFT MVP ASP.NET/IISTECHNICAL LEAD MAXCODE@DOTNET18 / GABRIELENEA.BLOGSPOT.COMCODECAMP IASI, 10 NOV 2012

2. How ASP.NET Requests AreProcessed by the Thread Pool? 3. How Requests Are Processed bythe Thread Pool freeIIS, ASP.NET Requests,Thread Pool, .NET Fx 4. How Requests Are Processed bythe Thread PoolRequest freeIIS, ASP.NET Requests,Thread Pool, .NET Fx 5. How Requests Are Processed bythe Thread PoolRequest busy freeIIS, ASP.NET Requests,Thread Pool, .NET Fx 6. How Requests Are Processed bythe Thread PoolRequest busy IIS, ASP.NET Requests, Thread Pool, .NET FxWeb Services (long running operations) 7. How Requests Are Processed bythe Thread PoolRequeRequest Queuest busy IIS, ASP.NET Requests, Thread Pool, .NET FxWeb Services 8. How Requests Are Processed bythe Thread PoolRequeRequest Queuest busy IIS, ASP.NET Requests, Thread Pool, .NET FxWeb Services 9. How Requests Are Processed bythe Thread Pool3 0 5RequeRequest Queue HTTP 503 ErrorsServer Too Busyt busyIIS, ASP.NET Requests,Thread Pool, .NET FxWeb Services 10. How Requests Are Processed bythe Thread Pool Request305Reque Request Queue HTTP 503 Errors Server Too Busyt free IIS, ASP.NET Requests, Thread Pool, .NET Fx Web Services 11. How Requests Are Processed bythe Thread Pool 12. What Can We Do to Improve theAvailability? 13. What Can We Do to Improve theAvailability? 14. Using Asynchronous methodsRequestfreeIIS, ASP.NET Requests,Thread Pool, .NET Fx busy Web Services 15. .NET Asynchronous Operations patterns 16. .NET Asynchronous Operationspatterns Synchronous code .NET 1.0: Asynchronous Programming Model (APM) pattern 17. .NET Asynchronous Operationspatterns Synchronous code .NET 2.0: Event-based Asynchronous Pattern (EAP) 18. .NET Asynchronous Operationspatterns Synchronous code .NET 4.0: Task-based Asynchronous Pattern (TAP) 19. .NET Asynchronous OperationspatternsSynchronous code .NET 1.0: compare .NET 4.0: .NET 2.0 .NET 4.5 async, await 20. ASP.NET MVCAsynchronous Operations Support 21. ASP.NET MVC - AsynchronousOperations Support MVC3 AsyncController AsyncManager MVC4 Task-based asynchronous action methods 22. DEMO 23. DEMO Bingoogle Dual Search Engine ASP.NET MVC3 -> MVC4 24. Guidelines:When to use synchronous orasynchronous action methods? 25. When to use synchronous actionmethods? The operations are simple or short-running Simplicity is more important than efficiency The operations are CPU-bound 26. When to use asynchronous actionmethods? (1) Asynchronous methods available and using .NET 4.5 The operations are network-bound or I/O-bound Parallelism is more important than simplicity of code 27. When to use asynchronous actionmethods? (2) You want to provide a mechanism that lets users cancel a long-running request Switching threads out weights the cost of the context switch Testing shows that the blocking operations are a bottleneck in site performance 28. Server Configuration for HighConcurrency/Latency Web Service Calls 29. Server Configuration for HighConcurrency/Latency Web Service Calls aspnet.config 30. Improving the Availability of YourWebsite in ASP.NET MVC4 Questions? 31. Resources Ask Google or start with.. MSDN - Asynchronous Programming with Async and Await www.asp.net - Using Asynchronous Methods in ASP.NET MVC 4 Channel9 - Mads Torgersen: Inside C# Async 32. Improving the Availability of YourWebsite in ASP.NET MVC4 Please fill the evaluation formGABRIEL ENEAMICROSOFT MVP ASP.NET/IISTECHNICAL LEAD MAXCODE@DOTNET18 / GABRIELENEA.BLOGSPOT.COM 33. Diamond SponsorsPlatinum SponsorsGold SponsorsTraining Partners Media PartnersOther Partners