Operating Systems Design and Implementation, Third Edition phần 6 ppsx

... Coughanowr LeBlanc Third Edition Process Systems Analysis and Control Process Systems Analysis and Control Donald R. Coughanowr Steven E. LeBlanc Third Edition Process Systems Analysis and Control, Third Edition ... developed a new course and laboratory in process control and collaborated with Dr. Lowell B. Koppel on the writing of the fi rst...

Ngày tải lên: 01/04/2014, 11:12

... for Real-Time Systems 7. Performance Analysis Techniques 6. Software Design Approaches 9. Future Visions on Real-Time Systems 1. Fundamentals of Real-Time Systems 3. Real-Time Operating Systems 4. ... for Real-Time Systems 5. Requirements Engineering Methodologies Real-Time Systems Design and Analysis + 8. Additional Considerations for the Practitioner www.it-ebo...

Ngày tải lên: 24/04/2014, 16:03

... File-Sharing Systems 539 11 .9 SUMMARY 5 41 12 DISTRIBUTED WEB-BASED SYSTEMS 545 12 .1 ARCHITECTURE 546 12 .1. 1 Traditional Web-Based Systems 546 12 .1. 2 Web Services 5 51 12.2 PROCESSES 554 12 .2 .1 Clients ... 9 1. 2.5 Pitfalls 16 1. 3 TYPES OF DISTRIBUTED SYSTEMS 17 1. 3 .1 Distributed Computing Systems 17 1. 3.2 Distributed Information Systems 20 1....

Ngày tải lên: 08/08/2014, 21:22

... many distributed systems, and are discussed extensively in this chapter. The main difficulty in designing secure distributed systems is not so much caused by security mechanisms, but by SEC. 8 .6 RECOVERY 369 Coordinated ... checkpoints and message logging. Elnozahy et al. (2002) provide a survey of checkpointing and logging in distributed systems. Various algorithmic deta...

Ngày tải lên: 08/08/2014, 21:22

... 2006 Print ISBN -10 : 0 -13 -14 2938-8 Print ISBN -13 : 978-0 -13 -14 2938-3 eText ISBN -10 : 0 -13 -18 59 91- 9 eText ISBN -13 : 978-0 -13 -18 59 91- 3 Pages: 10 80 Copyright Preface Chapter 1. Introduction Section 1. 1. What Is an Operating System? Section 1. 2. ... What Is an Operating System? Section 1. 2. History of Operating Systems Section 1. 3. Operating System...

Ngày tải lên: 12/08/2014, 22:21

... manager and the file system will be found in any operating system. The information server (IS) handles 2 2 Simpo PDF Merge and Split Unregistered Version - http://www.simpopdf.com 12 12 Simpo ... might lead to the sequence A1, A2, A3, A1, A2, A3, A1, A2, A3, A1, before the kernel switches to process B. This situation is illustrated in Fig. 2- 28(a). Figure 2- 28. (a) Possible sch...

Ngày tải lên: 12/08/2014, 22:21

... start of this file (lines 832 5 to 835 4) and provides space for storage of processor registers and other information that must be saved when a task switch is made. MINIX 3 uses only the fields that ... table. The array gate_table (lines 838 3 to 8418), is initialized by the compiler with the addresses of the routines that handle exceptions and hardware interrupts and then is used i...

Ngày tải lên: 12/08/2014, 22:21

... key, 2 for the "1'', and so on. Each key is assigned a number, including modifier keys like the left SHIFT and right SHIFT keys, numbers 42 and 54. When a key is pressed, MINIX 3 ... w_timeout line 13 046 is called. What needs to be done depends on the current command in w_command. The timeout might have been left over from a previous operation, and w_command may have...

Ngày tải lên: 12/08/2014, 22:21

... pages, the operating system can easily regard pages 0 and 1, 2 and 3, 4 and 5, and so on, as 1-KB pages by always allocating two consecutive 51 2-byte page frames for them. Determining the best ... the hand is inspected. If its R bit is 0, the page is evicted, the new page is inserted into the clock in its place, and the hand is advanced one position. If R is 1, it is cleared a...

Ngày tải lên: 12/08/2014, 22:21

... directory. 6 6 Simpo PDF Merge and Split Unregistered Version - http://www.simpopdf.com 27. An embedded computer provides each process with 65 ,5 36 bytes of address space divided into pages of 40 96 bytes. ... topics in operating system design. As a whole, that part of the operating system dealing with files is known as the file system and is the subject of this chapter. From...

Ngày tải lên: 12/08/2014, 22:21

... (line 271 77) . 2. The old pathname must not be a directory above the new pathname in the directory tree (lines 271 95 to 272 12). 3. Neither . nor is acceptable as an old or new name (lines 272 17 and ... do_chdir (line 275 42) and do_chroot (line 275 80). Both of them do the necessary checking and then call change (line 275 94), which does some more tests, then calls change_into (li...

Ngày tải lên: 12/08/2014, 22:21

... 0 788 3 else penalty ; /* give slow way back */ 0 788 4 prev_ptr = rp; /* store ptr for next */ 0 788 5 } 0 788 6 0 788 7 /* Determine the new priority of this process. The bounds are determined 0 788 8 ... */ 0 482 6 #define _SRC_ 0 0 482 7 #define _DST_ 1 0 482 8 0 482 9 /* Number of random sources */ 0 483 0 #define RANDOM_SOURCES 16 0 483 1 0 483 2 /* Constants and macros for bit map ma...

Ngày tải lên: 12/08/2014, 22:21

... signal. (See forkexit.c about 199 92 * pid magic.) 199 93 */ 199 94 count = 0; 199 95 error_code = ESRCH; 199 96 for (rmp = &mproc[0]; rmp < &mproc[NR_PROCS]; rmp++) { 199 97 if (!(rmp->mp_flags ... 199 80 */ 199 81 199 82 register struct mproc *rmp; 199 83 int count; /* count # of signals sent */ 199 84 int error_code; 199 85 199 86 if (signo < 0 || signo > _NSIG) return(...

Ngày tải lên: 12/08/2014, 22:21

... 8086 1 1 Simpo PDF Merge and Split Unregistered Version - http://www.simpopdf.com 2 2 Simpo PDF Merge and Split Unregistered Version - http://www.simpopdf.com [Page 105 3] About the Authors Andrew S. ... physical 2 2 Simpo PDF Merge and Split Unregistered Version - http://www.simpopdf.com 198 198 Simpo PDF Merge and Split Unregistered Version - http://www.simpopdf.com 2 2...

Ngày tải lên: 12/08/2014, 22:21

... 90.089 0.2 16 0.171 0 .67 9 INDTHE (a  ) 0. 168 0.185 0.823 0. 364 SCALE () 1.000 0.071 SHAPE () 0.450 0.223 INTERCPT (a  ) 2.748 0.3 96 48.247 0.000 INDADE (a  ) 90. 766 0.280 7.492 0.0 06 INDSMA ... 0.719 9.143 0.003 INDADE (a  ) 90.759 0.2 86 7.034 0.008 INDSMA (a  ) 90.594 0. 264 5.059 0.025 INDSQU (a  ) 0.150 0.291 0. 266 0 .60 6 KPS (a  ) 0.034 0.005 46. 443 0.000 AGE (a ...

Ngày tải lên: 14/08/2014, 09:22