Computer Systems: A Programmer's Perspective (3rd Edition)
3rd Edition
ISBN: 9780134092669
Author: Bryant, Randal E. Bryant, David R. O'Hallaron, David R., Randal E.; O'Hallaron, Bryant/O'hallaron
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Question
Chapter 6.1, Problem 6.3PP
Program Plan Intro
Given Information:
A sector in a disk has the following parameters:
| Parameter | Value |
| Rotational Value | 15000 RPM |
| Tavg seek | 8 ms |
| Average numbers of sectors or tracks | 500 |
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Q2) Consider a magnetic disk drive with 8 surfaces, 512 tracks per surface, and 64 sectors per track. Sector size is 1 kB. The
average seek time is 8 ms, the track-to-track access time is 1.5 ms, and the drive rotates at 3600 rpm. Successive tracks in a
cylinder can be read without head movement. (8 yüzeyli, yüzey başına 512 izli ve iz başına 64 sektörlü bir manyetik disk
risim süresi 15 ms ve süricü 3600 rpm'de
Ortalam
a. What is the disk capacity? (Disk kapasitesi nedir?)
b. What is the average access time? Assume this file is stored in successive sectors and tracks of successive cylinders, starting
at sector (0, track 0, of cylinder i.( Ortalama erişim süresi nedir? Bu dosyanın, i silindirinin sektör 0, iz 0'dan başlayarak, birbirini
takip eden sektorierde ve ardişık silindin
c. Estimate the time required to transfer a 5-MB file. (5 MBl
izlerinde depolandiğını varsayın.
süreyi tahmin edin.)
(c) The following Sigma 16 program has been loaded into memory at address 0000:
load R3,y[RO]
load R4,x[RO]
lea R5, 2[RO]
sub R1,R4,R3
mul R2,R1,R5
store R2,w[RO]
trap RO,RO,RO
x data 10
y data 12
w data 0
Show the content of the memory writing hexadecimal representation and using a
table with 3 columns: the memory address, the contents of that memory address,
and an explanation of what "the content (of that memory address) means". As a
reference, here are the opcodes for RRR instructions: add 0, sub 1, mul 2, trap c.
And here the opcodes for RX instructions: lea 0, load 1, store 2.
[7]
Assume:
CPU Clock = 1 GHz
1 OP requires 5 clock cycles (arithmetic instruction, conditional, etc.)
1 memory access requires 100 clock cycles (Read or Write)
Problem size: N = 1,000,000 (1 million)
There is no cost associated with the loop index variable: do not count any arithmetic
instructions for initializing or incrementing the loop index value, do not count any memory
accesses for accessing and using the loop index variable in your computation of a sum.
Assume the loop index variable is "free of charge"
There is no memory cost of accessing and updating your accumulator variable (e.g., sum
+= ...), but there is an arithmetic operation involved in updating the accumulator variable.
Questions:
1. For algorithm #1 shown below (direct sum):
• How many arithmetic instructions are required by this algorithm?
• How many memory accesses are required by this algorithm?
• How many clocks are required by this algorithm?
• What is the CPI (cycles per instruction) required by this algorithm?
•…
Chapter 6 Solutions
Computer Systems: A Programmer's Perspective (3rd Edition)
Ch. 6.1 - Prob. 6.1PPCh. 6.1 - Prob. 6.2PPCh. 6.1 - Prob. 6.3PPCh. 6.1 - Prob. 6.4PPCh. 6.1 - Prob. 6.5PPCh. 6.1 - Prob. 6.6PPCh. 6.2 - Prob. 6.7PPCh. 6.2 - Prob. 6.8PPCh. 6.4 - Prob. 6.9PPCh. 6.4 - Prob. 6.10PP
Ch. 6.4 - Prob. 6.11PPCh. 6.4 - Prob. 6.12PPCh. 6.4 - Prob. 6.13PPCh. 6.4 - Prob. 6.14PPCh. 6.4 - Prob. 6.15PPCh. 6.4 - Prob. 6.16PPCh. 6.5 - Prob. 6.17PPCh. 6.5 - Prob. 6.18PPCh. 6.5 - Prob. 6.19PPCh. 6.5 - Prob. 6.20PPCh. 6.6 - Prob. 6.21PPCh. 6 - Prob. 6.22HWCh. 6 - Prob. 6.23HWCh. 6 - Suppose that a 2 MB file consisting of 512-byte...Ch. 6 - The following table gives the parameters for a...Ch. 6 - The following table gives the parameters for a...Ch. 6 - Prob. 6.27HWCh. 6 - This problem concerns the cache in Practice...Ch. 6 - Suppose we have a system with the following...Ch. 6 - Suppose we have a system with following...Ch. 6 - Suppose that a program using the cache in Problem...Ch. 6 - Repeat Problem 6.31 for memory address0x16E8 A....Ch. 6 - Prob. 6.33HWCh. 6 - Prob. 6.34HWCh. 6 - Prob. 6.35HWCh. 6 - Prob. 6.36HWCh. 6 - Prob. 6.37HWCh. 6 - Prob. 6.38HWCh. 6 - Prob. 6.39HWCh. 6 - Given the assumptions in Problem 6.38, determine...Ch. 6 - You are writing a new 3D game that you hope will...Ch. 6 - Prob. 6.42HWCh. 6 - Prob. 6.43HWCh. 6 - Prob. 6.45HWCh. 6 - Prob. 6.46HW
Knowledge Booster
Similar questions
- (a)What is the biggest size we can have for a file with SFS? (b)Provide data block numbers in sequence that will be read from the disk (only data blocks that contain file data) when read_t (inum, offset, buf1, count) is called in a user program, where inum is the corresponding inode number for the above inode, and buf1 is a pointer that points to a user-defined buffer.arrow_forwardA. Design a 8 bit register file with 10 registers. B. Design an ALU with AND, OR, XOR, NOT, ADD and SUBTRUCT operations that can use the above register file.arrow_forward[1] ( Show your work. Show hoe you compute memory address by using the effective memory address computation. Assume the following values are stored at the indicated memory addresses and registers: Address Value 0x100 OxFF 0x104 OxAB 0x108 0x13 0x10c 0x11 Register %rax %rcx %rdx $0x108 (%rax) 4(%rax) 9(%rax, %rdx) 260(%rcx,%rdx) OxFC (,%rcx, 4) (%rax, %rdx, 4) Value 0x100 0x1 0x3 Fill in the following table showing the values for the indicated operands: Operand Value %rax 0x104arrow_forward
- (c) Assume that a Direct Mapping Function is apply on a memory system with 24-bit address. The cache has 16384 blocks, each storing 4 words. Calculate its tag, block, and word size.arrow_forwardThere are many parameters that could be used to describe disk performance; among them are: number of bits per track disk capacity (in bits) number of disk surfaces rotational speed rotational latency transfer rate tracks per surface sectors per track blocks per track sectors per block seek time speed of disk arm block-read time number of blocks Some of these parameters are independent, and others are (approximately) linearly related. That is, doubling one doubles the other. Decide which of these parameters are linearly related. Then, select from the list below, the relationship that is true, to within a close approximation. Note: none of the statements may be true exactly, but one will always be much closer to the truth than the other three. Also note: you should assume all dimensions and parameters of the disk are unchanged except for the ones mentioned. a) If you divide tracks into half as many blocks, then you double the read time for a block.…arrow_forwardThere are many parameters that could be used to describe disk performance; among them are: number of bits per track disk capacity (in bits) number of disk surfaces rotational speed rotational latency transfer rate tracks per surface sectors per track blocks per track sectors per block seek time speed of disk arm block-read time number of blocks Some of these parameters are independent, and others are (approximately) linearly related. That is, doubling one doubles the other. Decide which of these parameters are linearly related. Then, select from the list below, the relationship that is true, to within a close approximation. Note: none of the statements may be true exactly, but one will always be much closer to the truth than the other three. Also note: you should assume all dimensions and parameters of the disk are unchanged except for the ones mentioned. a) If you double the number of sectors per block, then you double the number of blocks on the disk. b)…arrow_forward
- Q. 1 How long does it take to load a 64-KB program from a disk whose average seek time is 5 msec, whose rotation time is 5 msec, and whose tracks hold 1 MB(a) for a 2-KB page size?(b) for a 4-KB page size?The pages are spread randomly around the disk and the number of cylinders is so large that the chance of two pages being on the same cylinder is negligible.arrow_forward3. Consider the following AT&T ISA 32 ASM codes for a C for loop: loop: puahl tabp tenp, tebp 8 (sebp), ecx 12 (tebp), tedx $0, teax Becx, tedx movl movl movl movl cmpl jge .L3 .L6: subl addl addl cmpl jg $1, tecx $1, Bedx $1, teax Sedx, tecx .L6 L3: $1, teax Sebp addl popl ret Based on the assembly code above, (Note: you may only use the symbolic variables x, y, and result in your expressions below – do not use register names.) int loop (int x, int y) int result; result++ ) { for return result;arrow_forward3) What is the size of the memory for each case below? Each segment is All segments are • Overall memory is .... .... ......arrow_forward
- (d) You are working on a redesign of a simple 16-bit computer which supports at most 64 kilobytes of memory. Currently, memory is word-addressed and all memory accesses load or store a 16-bit value. For example, LDA Ox6502 loads a 16-bit value from address Ox6502 into register A. The change is to support additionally 8-bit accesses, thanks to an expanded machine language (already designed by a colleague) which now supports instructions such as: ; load 16 bits from addr 6502 into A ; load 8 bits from addr 6502 into A LDAW Ox6502 LDAB Ox6502 Outline, at a high level, how you would bring about this change in the CPU design, and mentioning any difficulties you expect to encounter.arrow_forwarda. Provide the four (4) memory allocation scheme of RAM b. Provide the three (3) deallocation alternative situationsarrow_forwardPerformance: *(15 min.] Your computer has a cache that is utilized 40% of the time. You would like to improve the performance of the cache to improve the overall performance of your computer. How fast your cache should be to achieve 1.5 times better overall processor performance? Do not write just numbers. Show your work.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Database System ConceptsComputer ScienceISBN:9780078022159Author:Abraham Silberschatz Professor, Henry F. Korth, S. SudarshanPublisher:McGraw-Hill Education
Starting Out with Python (4th Edition)Computer ScienceISBN:9780134444321Author:Tony GaddisPublisher:PEARSON
Digital Fundamentals (11th Edition)Computer ScienceISBN:9780132737968Author:Thomas L. FloydPublisher:PEARSON
C How to Program (8th Edition)Computer ScienceISBN:9780133976892Author:Paul J. Deitel, Harvey DeitelPublisher:PEARSON
Database Systems: Design, Implementation, & Manag...Computer ScienceISBN:9781337627900Author:Carlos Coronel, Steven MorrisPublisher:Cengage Learning
Programmable Logic ControllersComputer ScienceISBN:9780073373843Author:Frank D. PetruzellaPublisher:McGraw-Hill Education
Database System Concepts
Computer Science
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:McGraw-Hill Education
Starting Out with Python (4th Edition)
Computer Science
ISBN:9780134444321
Author:Tony Gaddis
Publisher:PEARSON
Digital Fundamentals (11th Edition)
Computer Science
ISBN:9780132737968
Author:Thomas L. Floyd
Publisher:PEARSON
C How to Program (8th Edition)
Computer Science
ISBN:9780133976892
Author:Paul J. Deitel, Harvey Deitel
Publisher:PEARSON
Database Systems: Design, Implementation, & Manag...
Computer Science
ISBN:9781337627900
Author:Carlos Coronel, Steven Morris
Publisher:Cengage Learning
Programmable Logic Controllers
Computer Science
ISBN:9780073373843
Author:Frank D. Petruzella
Publisher:McGraw-Hill Education