This article demystifies the POSIX thread interface, providing practical examples of threaded code for consideration.

Tutorial on POSIX Threads.

Portable Threads: portable POSIX/ANSI-C library for Unix gives non-preemptive priority-based scheduling for multithreading in programs. All threads run in same address space, each has its own program counter, run time stack, signal mask, errno variable; cooperative scheduling: threads dispatched based on priority, pending events. [Open Source, GPL]

Introduces what threads are, why they are useful and how to program with them using the POSIX 1003.1c thread standard and API bindings for C.

Frequently asked questions about the kernel-level multi-threading library for Linux.

Attempts to show how the library's features can be used in "real-life" programs. It explains the different tools defined by the library, shows how to use them, and then gives an example of using them to solve programming problems.

Dives into the world of threads with a little bit of "theory" first. Examine thread synchronization primitives and how to use POSIX pthreads. Finally, it finishes off with thread performance and a brief overview of multiprocess programming.

The complementary site for the book with the same title.

Initial performance: 8x Linux Threads, 4x NGPT. [Linux Weekly News]

White paper describes actual implementation of thread library for which requirements are spelled out in a prior document. Many things are different.

Goals: solve problems of pthreads library on Linux; add M:N threading, raise POSIX compliance and speed in threaded programs, more so under SMP, give threading services more like commercial Unix. Derived from GNU Pth. [Open Source, LGPL]

A set of C++ wrappers for posix synchronous entities such as pthread, mutexes and condition.

How to use POSIX threads to increase the responsiveness and performance of your code.

How to protect the integrity of shared data structures in threaded code by using mutexes.

How to use condition variables.

Provides an overview of threads programming and the POSIX threads API.

How to write parallel applications using POSIX threads. By Mark Hays.

The Single UNIX Specification (Version 2) standard for threads. Includes manual pages of all POSIX thread functions.