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Leopard Reference Library: Carbon
The performance of Carbon applications can be measured, evaluated, and optimized using Apple's developer tools, technologies, and programming interfaces. Developers can fine-tune their applications for high performance using tools such as the Shark code-profiling application, features such as multiprocessing, and APIs such as the one for the vDSP library.

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vDSP Single-Vector Operations Reference (HTML) (PDF)
This document describes the C API for performing common routines on a single vector in vDSP.
Reference 2009-01-07
vDSP Correlation, Convolution, and Filtering Reference (HTML) (PDF)
Describes an interface for performing correlation, convolution, and filtering operations on real or complex signals.
Reference 2009-01-06
vDSP Matrix Operations Reference (HTML) (PDF)
Describes an interface for matrix arithmetic operations.
Reference 2009-01-06
vDSP One-Dimensional Fast Fourier Transforms Reference (HTML) (PDF)
Describes an interface for performing one-dimensional fast Fourier transforms on an input signal.
Reference 2009-01-06
vDSP Vector-To-Scalar Operations Reference (HTML) (PDF)
Describes functions that receive a vector as input and compute scalars as output.
Reference 2009-01-06
vDSP Vector-to-Vector Arithmetic Operations Reference (HTML) (PDF)
Describes functions that receive a vector as input and return a vector as output.
Reference 2009-01-06
vDSP Two-Dimensional Fast Fourier Transforms Reference (HTML) (PDF)
Improved function discussions and corrections.
Reference 2008-11-19
Disabling Processor Cores on a Multi-Core System (HTML) (日本語 HTML)
QA1141: Describes how to disable processor cores on a multi-core system for testing purposes.
Technical Q&As 2008-09-16
Requirements for Quartz GL (HTML)
QA1536: Describes the requirements for enabling Quartz GL.
Technical Q&As 2008-08-08
Multiprocessing Services Reference (HTML) (PDF)
Describes the C API for creating preemptively scheduled tasks in Carbon applications.
Reference 2008-02-08
Threading Programming Guide (HTML) (PDF)
Explains how to use threads in Cocoa applications.
Guides 2008-02-08
64-Bit Guide for Carbon Developers (HTML) (PDF)
Explains the changes necessary to create a 64-bit executable version of a Carbon application.
Guides 2007-12-11
Multiprocessing Services Programming Guide (HTML) (PDF)
Explains how to implement preemptive tasks in Carbon applications.
Guides 2007-10-31
vDSP Complex Vector Conversion Reference (HTML) (PDF)
Describes functions that convert complex vectors between interleaved and split forms.
Reference 2007-06-15
vDSP Vector Scalar Arithmetic Operations Reference (HTML) (PDF)
Describes vDSP functions that perform arithmetic operations combining a scalar with each element of a vector.
Reference 2007-06-15
Performance Overview (HTML) (PDF)
Introduces the factors that determine performance.
Guides 2006-10-03
Code Size Performance Guidelines (HTML) (PDF)
Guidelines for reducing the size of an application binary.
Guides 2006-06-28
Memory Usage Performance Guidelines (HTML) (PDF)
Guidelines for improving the performance of memory-related code.
Guides 2006-06-28
Drawing Performance Guidelines (HTML) (PDF)
Guidelines for improving the speed of drawing code.
Guides 2006-04-04
Launch Time Performance Guidelines (HTML) (PDF)
Guidelines for improving the launch performance of an application.
Guides 2006-04-04
Taking Advantage of the Accelerate Framework (HTML)
Learn how your application can run on PowerPC- or Intel-based Macs without processor-specific customization.
Articles 2005-10-03
Memory Allocation Recommendations on Mac OS X (HTML)
TN2130: Recommends the best ways to allocate memory on Mac OS X.
Technical Notes 2005-07-12
Code Speed Performance Guidelines (HTML) (PDF)
Guidelines for improving the performance and efficiency of code.
Guides 2005-07-07
File-System Performance Guidelines (HTML) (PDF)
Guidelines for improving the performance of file-related code.
Guides 2005-07-07
Porting Multithreaded Applications from Win32 to Mac OS X (HTML)
Learn how Mac OS X handles multithreading, before porting your Win32 application.
Articles 2005-06-20
DockBrowser (HTML) (DMG) (ZIP)
Demonstrates how to use CFNetServices to take advantage of Bonjour service discovery and name resolution.
Sample Code 2005-02-08
CopyBits vs. CopyMask (HTML) (DMG) (ZIP)
Deprecated - CopyBits (using a mask region) vs. CopyMask (using a mask BitMap). Which do you think is faster?
Sample Code 2003-07-22
Maximizing Mac OS X Application Performance (HTML)
Learn how to achieve better performance on Mac OS X.
Articles 2003-06-23
Program sample demonstrates how to send and receive raw LLC Ethernet packets.
Sample Code 2003-06-12
Quartz 2D Thread Safety (HTML) (日本語 HTML)
QA1238: Explains the thread-safety issues for the Quartz 2D API.
Technical Q&As 2003-02-25
Mac OS X QuickDraw Performance (HTML) (日本語 HTML)
TN2051: Some of the trouble spots in the Mac OS X windowing system and how to avoid them.
Technical Notes 2003-02-13
icon cache demo (HTML) (DMG) (ZIP)
Demonstrates the use of an icon cache to limit the search for icon resource to one resource file.
Sample Code 2003-01-30
Debugging Programming Topics for Core Foundation (HTML) (PDF)
Tips and techniques for debugging Core Foundation code.
Guides 2003-01-17
Debugger Services Reference (HTML) (PDF)
Describes the C API for standard exception-handling and assertion functions used in Carbon applications.
Reference 2003-01-01
Error Handler Reference (HTML) (PDF)
Describes the C API for a Mac OS 9 service that assumes control when certain low-level system errors occur.
Reference 2003-01-01
How do I tell if a particular display is being hardware accelerated by Quartz Extreme? (HTML) (日本語 HTML)
QA1218: Describes how to use CGDisplayUsesOpenGLAcceleration to see if a display is accelerated or not.
Technical Q&As 2002-12-04
GDB for MacsBug Veterans (HTML)
TN2030: Translate your experience with MacsBug into a working knowledge of the GNU source-level debugger (GDB).
Technical Notes 2001-10-18
OTScheduleDeferredTask When Task Running (HTML) (日本語 HTML)
NW52: Describes what happens when you use OTScheduleDefferedTask to schedule a task that is running.
Technical Q&As 1997-10-13
Changing the TCP Window Size (HTML)
NW47: Describes how to change the TCP window size in Open Transport.
Technical Q&As 1997-03-14
Using Temporary Memory with OpenPicture (HTML)
Deprecated - QD20: Provides several techniques of causing OpenPicture to allocate temporary memory for a picture handle.
Technical Q&As 1996-02-01
Error -151 and NewGWorld (HTML)
Deprecated - QD18: Explains what the error code -151 means when in NewGWorld.
Technical Q&As 1995-09-15
Problem with PaintRgn on 256-color Screens (HTML)
Deprecated - QD23: PaintRgn with RGBForeColor and transfer mode addOver doesn't return color to original on 256-color-screens.
Technical Q&As 1995-09-15