Tools - Performance & Debugging

Mac OX S and the Xcode developer tools include a powerful suite of performance analysis tools. Everything you need to fully measure, evaluate, inspect, and then optimize your application or even the system itself is included for free with Mac OS X.

New with Mac OS X 10.5 (Leopard) is the Instruments visual analysis tool. Instruments leverages Leopard's built-in support for the open source DTrace analysis engine. By activating the normally dormant DTrace probes built into the core OS frameworks and kernel, Instruments can record many aspects of your system behavior at runtime, from network and disk activity, to CPU sampling, to garbage collections. Instruments displays all this collected information as a set of "tracks," visualized over time, making it easy to correlate system and user events to see cause and effect relationships.

The workhorse profiling tool Shark has been upgraded for Leopard as well, giving great application insight while taking up very little system resources, and now includes support for 64-bit Cocoa applications. DTrace, Shark, and Instruments, combined with many other debugging and analysis tools, make it possible to create applications that maximize the performance of the Mac.

Performance & Debugging Articles

Optimizing Your Application with System Trace in Shark 4

With Shark's System Trace, you get a detailed view of how your code interacts with Mac OS X. This advanced article digs deep into the power of Shark and how it can help you optimize your code.

Test Driving Your Code with OCUnit

Add unit tests to your development cycle and improve the quality of your application and refine your design through tangible feedback. Read this article to learn how to test drive your code with OCUnit.

Optimizing Your Application with Shark 4

The newest version of Shark includes powerful new features such as data mining and Java support. Learn how using Shark 4 can help you dramatically improve performance in your application.

OpenGL Profiler

OpenGL Profiler is the Apple's best of class tool to assist developers in debugging and optimizing their OpenGL usage. Profiler now has support for attaching to running processes, the ability to dynamically override OpenGL functions using scripts, and browse textures and programs. Other powerful features include breakpoints and execution controls, OpenGL state and call stack analysis and collection of real time driver statistics.

Optimizing with Shark: Big Payoff, Small Effort

Spend a few hours with the Shark performance tool to realize significant performance improvements in your application. This article guides you through the sampling of a real application with Shark and shows where and how to optimize it quickly.

Maximizing Mac OS X Application Performance

This article is about performance — how to think about it, how to measure it, and how to improve it. Of course, performance is a complex subject, and Apple has a robust set of performance documentation available. This article supplements that documentation by giving you a framework for thinking about performance, as well as performance tips that you can use immediately.

Optimizing for the Power Mac G5

The world's fastest personal computer is coming to a desktop near you. Learn how to optimize your application for the new architecture introduced with the Power Mac G5.