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Leopard Guides: Performance
Apple's suite of developer tools includes a number of optimization tools to help developers gather performace metrics, as well as identify and eliminate inefficiencies in their code. Code-profiling applications such as Shark show where an application is spending its time. Developers can use tools such as MallocDebug to help track down memory leaks and analyze memory use. Using these and other tools provided by Apple, developers can fine-tune their applications for high performance.
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Code Size Performance Guidelines (HTML) (PDF)
Guidelines for reducing the size of an application binary.
 2006-06-28
Code Speed Performance Guidelines (HTML) (PDF)
Guidelines for improving the performance and efficiency of code.
 2005-07-07
File-System Performance Guidelines (HTML) (PDF)
Guidelines for improving the performance of file-related code.
 2005-07-07
Launch Time Performance Guidelines (HTML) (PDF)
Guidelines for improving the launch performance of an application.
 2006-04-04
Memory Usage Performance Guidelines (HTML) (PDF)
Guidelines for improving the performance of memory-related code.
 2006-06-28
Shark User Guide (HTML) (PDF)
Explains how to analyze code performance by profiling the system.
 2008-04-14
Xcode Debugging Guide (HTML) (PDF)
Describes the Xcode debugging facilities and the recommended debugging techniques.
 2009-01-06