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一.基础知识：线程和进程按照教科书上的定义，进程是资源管理的最小单位，线程是程序执行的最小单位。在操作系统设计上，从进程演化出线程，最主要的目的就是更好的支持SMP以及减小（进程/线程）上下文切换开销。无论按照怎样的分法，一个进程至少需要一个线程作为它的指令执行体，进程管理着资源（比如cpu、内...

[转载]Linux 线程实现机制分析

自从多线程编程的概念出现在 Linux 中以来，Linux 多线应用的发展总是与两个问题脱不开干系：兼容性、效率。本文从线程模型入手，通过分析目前 Linux 平台上最流行的 LinuxThreads 线程库的实现及其不足，描述了 Linux 社区是如何看待和解决兼容性和效率这两个问题...

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