随笔分类 -  computer system: a programmer perspective_3rd

第十二章 并发编程
摘要：Thu 22 Feb 12:21:12 GMT 2018 第十二章 并发编程 使用应用级并发的应用程序称为并发程序(concurrent program).现代操作系统提供3个基本的构造并发程序的方法： + 进程 + I/O多路复用。(i/o multiplexing) + threads 12.1 阅读全文
posted @ 2018-03-28 23:35 孤灯下的守护者 阅读(133) 评论(0) 推荐(0)
第十一章 网络编程
摘要：Sun 11 Feb 13:30:10 GMT 2018 第十一章 网络编程 11.1 The client-Server programming Model The fundamental operation in the client-server model isthe 'transactio 阅读全文
posted @ 2018-03-28 23:34 孤灯下的守护者 阅读(157) 评论(0) 推荐(0)
chapter 10 System-Level I/O
摘要：Thu 8 Feb 15:43:18 GMT 2018 Part III interaction and communication between Programs chapter 10 System-Level I/O 10.1 Unix I/O <unistd.h> : STDIN_FILEN 阅读全文
posted @ 2018-03-28 23:32 孤灯下的守护者 阅读(149) 评论(0) 推荐(0)
第九章 虚拟内存(Virtual Memory)
摘要：# Wed 31 Jan 00:36:01 GMT 2018 第九章 虚拟内存(Virtual Memory) 9.3 VM as a tool for caching virtual pages(VPs). phsical pages are also referredto as page fra 阅读全文
posted @ 2018-03-28 23:31 孤灯下的守护者 阅读(652) 评论(0) 推荐(0)
第8章 异常控制流 (exceptional control flow)
摘要：# Wed 24 Jan 11:30:36 GMT 2018 第8章 异常控制流 (exceptional control flow) 8.1 exceptions Exceptions are a form of excepional control flow thatare implemente 阅读全文
posted @ 2018-03-28 23:29 孤灯下的守护者 阅读(181) 评论(0) 推荐(0)
第七章 链接 (linking)
摘要：# Wed 27 Dec 18:57:00 GMT 2017 Part II running programs on a system 第七章 链接 (linking) 7.1 编译器驱动程序 编译驱动程序代表用户在需要时间调用语言预处理器，编译器，汇编器和连接器。生成 .i, .s, .o及可执行 阅读全文
posted @ 2018-03-28 23:26 孤灯下的守护者 阅读(500) 评论(0) 推荐(0)
第6章 存储器层次结构
摘要：第6章 存储器层次结构 18 Dec 2017 -- The Memory Hierarchy 6.1 Storage Technologies 5816.2 Locality 6046.3 The memory hirarchy 6096.4 cache memories 6146.5 writi 阅读全文
posted @ 2018-03-28 23:25 孤灯下的守护者 阅读(275) 评论(0) 推荐(0)
chapter 5
摘要：5.4 Eliminating loop inefficiencies A general class of optimizations is known as code motion. They involve identifying a computation that isperformed 阅读全文
posted @ 2018-03-28 23:23 孤灯下的守护者 阅读(136) 评论(0) 推荐(0)
Chapter 4 Processor Architecture 2017-11-7
摘要：The instructions supported by a particular processor and their byte-level encodings are known as its instruc- tion set architecture(IsA). 4.1 The Y86- 阅读全文
posted @ 2018-03-28 23:22 孤灯下的守护者 阅读(335) 评论(0) 推荐(0)
chapter 3
摘要：3.1 A historical perspective 3.2 Program encodings gcc -Og -o p p1.c p2.c -Og instructs the compiler to apply a level of optimization that yields mach 阅读全文
posted @ 2018-03-28 23:17 孤灯下的守护者 阅读(561) 评论(0) 推荐(0)
Chapter 1 A Tour of Computer Systems
摘要：1.9.1 Amdahl's Law Consider a system in which executing some application requires time T_old.Suppose some part of the system requires a fraction x of 阅读全文
posted @ 2018-03-28 23:15 孤灯下的守护者 阅读(180) 评论(0) 推荐(0)
machine-level representation of program
摘要：3.2 gcc -Og -S mstore.c > mstore.s //assemble form AT&T style gcc -Og -S -masm=intel mstore.c //assemble of intel style gcc -Og -c mstore.c > mstore.o 阅读全文
posted @ 2016-11-30 00:25 孤灯下的守护者 阅读(168) 评论(0) 推荐(0)
第2章
摘要：2章. 2.1 information storage A machine-level program views memory as a very large arrayof bytes,referred to as virtual memory.Every byte of memory is i 阅读全文
posted @ 2016-09-23 22:49 孤灯下的守护者 阅读(279) 评论(0) 推荐(0)