深入理解LINUX内核(影印版第3版涵盖2.6版)(英文版)

为了透彻理解Linux的工作机理，以及为何它在各 种系统上能顺畅运行，你需要深入到内核的心脏。cPu 与外部世界的所有交互活动都是由内核处理的，哪些 程序会分享处理器的时间，以什么样的顺序来分享。 内核不遗余力地管理有限的内存，以使数以千计的进 程有效地共享系统资源。内核还精心组织数据传送， 使得cPu不再受限于慢速硬盘。本书将引领你畅游内核 中用到的主要数据结构、算法和编程技巧。如果你的 确想了解计算机内部的实现机理，那么作者透过现象 探寻本质，提供了颇有价值的深入分析。本书针对具 体的Intel平台，讨论了其重要特征，逐行剖析了相关 的代码片段。但是，本书涵盖的内容不仅仅局限于代 码的机理，还解释了Linux运作方式的理论支撑。

Preface 1. Introduction Linux Versus Other Unix-Like Kernels Hardware Dependency Linux Versions Basic Operating System Concepts An Overview of the Unix Filesystem An Overview of Unix Kernels 2. Memory Addressing Memory Addresses Segmentation in Hardware Segmentation in Linux Paging in Hardware Paging in Linux 3. Processes Processes, Lightweight Processes, and Threads Process Descriptor Process Switch Creating Processes Destroying Processes 4. Interrupts and Exceptions The Role of Interrupt Signals Interrupts and Exceptions Nested Execution of Exception and Interrupt Handlers Initializing the Interrupt Descriptor Table Exception Handling Interrupt Handling Softirqs and Tasklets Work Queues Returning from Interrupts and Exceptions 5. Kernel Synchronization How the Kernel Services Requests Synchronization Primitives Synchronizing Accesses to Kernel Data Structures Examples of Race Condition Prevention 6. Timing Measurements Clock and Timer Circuits The Linux Timekeeping Architecture Updating the Time and Date Updating System Statistics Software Timers and Delay Functions System Calls Related to Timing Measurements 7. Process Scheduling Scheduling Policy The Scheduling Algorithm Data Structures Used by the Scheduler Functions Used by the Scheduler Runqueue Balancing in Muhiprocessor Systems System Calls Related to Scheduling 8. Memory Management