现代操作系统全套配套课件4eTanenbaumPPT及教学资料Chapter12-OperatingSystemDesign.pptVIP

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现代操作系统全套配套课件4eTanenbaumPPT及教学资料Chapter12-OperatingSystemDesign.ppt

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Tanenbaum Bo, Modern Operating Systems:4th ed., (c) 2013 Prentice-Hall, Inc. All rights reserved. Tanenbaum Bo, Modern Operating Systems:4th ed., (c) 2013 Prentice-Hall, Inc. All rights reserved. Operating System Design Chapter 12 Tanenbaum Bo, Modern Operating Systems:4th ed., (c) 2013 Prentice-Hall, Inc. All rights reserved. Goals Main goals of general purpose operating systems: Define abstractions. Provide primitive operations. Ensure isolation. Manage the hardware. Tanenbaum Bo, Modern Operating Systems:4th ed., (c) 2013 Prentice-Hall, Inc. All rights reserved. Interface DesignGuiding Principles Simplicity Completeness Efficiency Tanenbaum Bo, Modern Operating Systems:4th ed., (c) 2013 Prentice-Hall, Inc. All rights reserved. Execution Paradigms Figure 12-1. (a) Algorithmic code. (b) Event-driven code. Tanenbaum Bo, Modern Operating Systems:4th ed., (c) 2013 Prentice-Hall, Inc. All rights reserved. System StructureLayered Systems Figure 12-2. One possible design for a modern layered operating system. Tanenbaum Bo, Modern Operating Systems:4th ed., (c) 2013 Prentice-Hall, Inc. All rights reserved. Microkernel-Based Client-Server Systems Figure 12-3. Client-server computing based on a microkernel. Tanenbaum Bo, Modern Operating Systems:4th ed., (c) 2013 Prentice-Hall, Inc. All rights reserved. Naming Figure 12-4. Directories are used to map external names onto internal names. Tanenbaum Bo, Modern Operating Systems:4th ed., (c) 2013 Prentice-Hall, Inc. All rights reserved. Static vs. Dynamic Structures Figure 12-5. Code for searching the process table for a given PID. Tanenbaum Bo, Modern Operating Systems:4th ed., (c) 2013 Prentice-Hall, Inc. All rights reserved. Hiding the Hardware Figure 12-6. (a) CPU-dependent conditional compilation. (b) Word-length-dependent conditional compilation. Tanenbaum Bo, Modern Operating Systems:4th ed., (c) 2013 Prentice-Hall, Inc. All rights reserved. Space-Time Trade-offs (1) Figure 12-7. (a)