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Leopard Reference Library: Performance
The multiprocessing programming interfaces and techniques are for creating and managing multiple threads that can run on one or more processors and for creating and managing child processes. Threads (also known as tasks in Carbon) can be scheduled cooperatively as well as preemptively (the default). Developers can use multiprocessing to increase the performance and responsiveness of their applications.
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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
Threading Programming Guide (HTML) (PDF)
Explains how to use threads in Cocoa applications.
 Guides 2008-02-08
Xgrid Programming Guide (HTML) (PDF)
Explains how to create client applications that use Xgrid, Apple's parallel multiprocessing technology.
 Guides 2007-10-31
Xgrid Foundation Reference Update (HTML) (PDF)
Summarizes the symbols added to the Xgrid Foundation framework.
 Release Notes 2007-07-18
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
Introduction to MPI Distributed Programming on Mac OS X (HTML)
Learn how to create tightly coupled, distributed algorithms to run on multiple computers using MPI.
 Articles 2005-02-14
MPDelayUntilTest (HTML) (DMG) (ZIP)
Tests and demonstrates the MT/MP MPDelayUntil API.
Sample Code 2003-10-27
MPPeriodicalTest (HTML) (DMG) (ZIP)
Tests and demonstrates the MT/MP timers.
Sample Code 2003-10-27
MPFileCopy (HTML) (DMG) (ZIP)
Demonstrates how to copy a folder and its contents using the HFS Plus APIs from an MP task.
 Sample Code 2003-01-14