#235: iOS App Performance: Responsiveness

　　#409: Learning Instruments

　　#706: Networking Best Practices

　　#514: OpenGL ES Tools and Techniques

　　#506: Optimizing 2D Graphics and Animation Performance

　　#601: Optimizing Web Content in UIWebViews and Websites on iOS

　　#225: Up and Running: Making a Great Impression with Every Launch

　　下面这些视频来自WWDC 2011 ，也非常有用：

　　#308: Blocks and Grand Central Dispatch in Practice

　　#323: Introducing Automatic Reference Counting

　　#312: iOS Performance and Power Optimization with Instruments

　　#105: Polishing Your App: Tips and tricks to improve the responsiveness and performance

　　#121: Understanding UIKit Rendering

　　这里还有更多相关视频，大多数来自iOS 5技术讲座：

　　Your iOS App Performance Hitlist

　　Optimizing App Performance with Instruments

　　Understanding iOS View Compositing

　　基于 “Your iOS App Performance Hitlist” 视频，Ole Begemann写了一篇文章。

　　苹果还提供了一篇非常好的文章：性能优化。其中提供的技巧和提示对程序性能提升很有帮助。