1. Async Programming in F# LiuYanJiang - June 2010 Work In: 山东泰迪计算机软件工程师学校

2. About Me 刘晏江/刘校长/BeauLiu Microsoft Most Valuable Professiona Programmer F#，Scala，JavaScript，Pytho，.NET，mono Java(as the language) hater

3. What's F# Languages by Don Syme,MS Research Strongly Statically Typed Language Functional Language with OO Ability General Purpose Language

4. Async Programming is complex……

5. Four Big Concurrency Challenges Shared State Code Locality I/O Parallelism Scaling Up

6. Shared State Difficult to maintain and test Very difficult to parallelize Locking is fundamentally error prone

7. Immutability in F# Immutable Union Immutable Record Immutable Set Immutable Objects Immutable Tuple Immutable List Immutable Map

8. Code Locality Used to expressing algorithms linearly Async requires logical division of algorithms

9. Scaling to Multi-Machine To scale up,must to go beyond a single machine Multi-machine resources becoming common Roll-you-own clusters with cheap hardware Shared memory doesn't scale

10. F# Modern,simple,powerful and prductive Ready for production use with VS 2010 Simplified parallel and async programming for today and tomorrow Support .NET 4.0/3.5 and mono Open Source

11. Q & A