Question 3Table 1.1: Execution timesBenchmarkProcessorXY12010402408020Table 1.1 shows the execution times, in seconds, for two different benchmark programs onthree machines.i.Compute the arithmetic mean value for each system using X as the reference machineand then using Y as the reference machine. Argue that intuitively, the three machineshave roughly equivalent performance and that the arithmetic mean gives misleadingresults.ii. Compute the geometric mean value for each system, using X as the reference machineand then using Y as the reference machine. Argue that the results are more realisticthan with the arithmetic mean.Question 4i.Consider an L1 cache with an access time of 1 ns and a hit ratio of Suppose that wecan change the cache design (size of cache, cache organization) such that we increaseH to 0.97, but increase access time to 1.5 ns. What conditions must be met for thischange to result in improved performance?ii.Explain why this result makes intuitive sense.1Question 5i. List some reasons why it is worthwhile to study assembly language programming.ii. Section 15.4 includes a C program that calculates the greatest common divisor of twointegers. Describe the algorithm in words and show how the program does implementthe Euclid algorithm approach to calculating the greatest common divisor. Question 1You are to write an IAS program to compute the results of the following equation.Y =Assume that the computation does not result in an arithmetic overflow and that X, Y, and Nare positive integers with N2 1. Note: The IAS did not have assembly language, onlymachine language.N(N + 1)Sum(Y) =i.Use the equation2when writing the IAS program.ii.Do it the "hard way," without using the equation from part (i).Question 2a. On the IAS, what would the machine code instruction look like to load the contents ofmemory address 2 to the accumulator?b. How many trips to memory does the CPU need to make to complete this instructionduring the instruction cycle?Question 3Table 1.1: Execution timesBenchmarkProcessorXY12010402408020Table 1.1 shows the execution times, in seconds, for two different benchmark programs onthree machines.i.Compute the arithmetic mean value for each system using X as the reference machineand then using Y as the reference machine. Argue that intuitively, the three machineshave roughly equivalent performance and that the arithmetic mean gives misleadingresults.

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Table 1.1: Execution times Benchmark Processor X Y 1 20 10 40 40 80 20 Table 1.1 shows the execution times, in seconds, for two different benchmark programs on three machines. i. Compute the arithmetic mean value for each system using X as the reference machine and then using Y as the reference machine. Argue that intuitively, the three machines have roughly equivalent performance and that the arithmetic mean gives misleading results. ii. Compute the geometric mean value for each system, using X as the reference machine and then using Y as the reference machine. Argue that the results are more realistic than with the arithmetic mean.

Table 1.1: Execution times Benchmark Processor X Y 1 20 10 40 40 80 20 Table 1.1 shows the execution times, in seconds, for two different benchmark programs on three machines. i. Compute the arithmetic mean value for each system using X as the reference machine and then using Y as the reference machine. Argue that intuitively, the three machines have roughly equivalent performance and that the arithmetic mean gives misleading results. ii. Compute the geometric mean value for each system, using X as the reference machine and then using Y as the reference machine. Argue that the results are more realistic than with the arithmetic mean.

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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The subject is “information Technology”. The topic of the questions are under the little Man Computer .
Consider the execution of a program that results in the execution of 8 million instructions on a 400-MHz processor. The program consists of four major types of instructions. The instruction mix and the CPI for each instruction type are given below. What is the program execution time in the second? Instruction Type Arithmetic and logic Load/store with cache hit Branch Floating-point arithmetic operation Execution Time: sec CPI 3 4 3 9 Instruction Mix (%) 60 20 12 8
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