4.15 The importance of having a good branch predictor depends on how often conditional branches are executed. Together with branch predictor accuracy, this will determine how much time is spent stalling due to mispredicted branches. In this exercise, assume that the breakdown of dynamic instructions into various instruction categories is as follows: R-Type BEQ JMP LW SW 40% 25% 5% 25% 5% Also, assume the following branch predictor accuracies: Always-Taken Always-Not-Taken 2-Bit 45% 55% 85% 4.15.1 [10] <$4.8> Stall cycles due to mispredicted branches increase the CPI. What is the extra CPI due to mispredicted branches with the always-taken predictor? Assume that branch outcomes are determined in the EX stage, that there are no data hazards, and that no delay slots are used.

Question
4.15 The importance of having a good branch predictor depends on how often
conditional branches are executed. Together with branch predictor accuracy, this
will determine how much time is spent stalling due to mispredicted branches. In
this exercise, assume that the breakdown of dynamic instructions into various
instruction categories is as follows:
R-Type
BEQ
JMP
LW
SW
40%
25%
5%
25%
5%
Also, assume the following branch predictor accuracies:
Always-Taken
Always-Not-Taken
2-Bit
45%
55%
85%
4.15.1 [10] <$4.8> Stall cycles due to mispredicted branches increase the
CPI. What is the extra CPI due to mispredicted branches with the always-taken
predictor? Assume that branch outcomes are determined in the EX stage, that there
are no data hazards, and that no delay slots are used.
Expand
Transcribed Image Text

4.15 The importance of having a good branch predictor depends on how often conditional branches are executed. Together with branch predictor accuracy, this will determine how much time is spent stalling due to mispredicted branches. In this exercise, assume that the breakdown of dynamic instructions into various instruction categories is as follows: R-Type BEQ JMP LW SW 40% 25% 5% 25% 5% Also, assume the following branch predictor accuracies: Always-Taken Always-Not-Taken 2-Bit 45% 55% 85% 4.15.1 [10] <$4.8> Stall cycles due to mispredicted branches increase the CPI. What is the extra CPI due to mispredicted branches with the always-taken predictor? Assume that branch outcomes are determined in the EX stage, that there are no data hazards, and that no delay slots are used.

Expert Answer

Want to see the step-by-step answer?

Check out a sample Q&A here.

Want to see this answer and more?

Experts are waiting 24/7 to provide step-by-step solutions in as fast as 30 minutes!*

*Response times may vary by subject and question complexity. Median response time is 34 minutes for paid subscribers and may be longer for promotional offers.
Tagged in
Engineering
Computer Science

Automated Reasoning

Related Computer Science Q&A

Find answers to questions asked by students like you.

Q: I need help with a C program

A: Below is the required C program: - In the given program binary search is performed to search the ele...

Q: 2. Write a program that will load A with 15 random numbers (range : 1-50). Display elements of A in ...

A: Program to generate 15 random numbers from the range of 1 to 50. Store the 15 random numbers in vari...

Q: Imagine we are using a two-dimensional array as the basis for creating the game battle- ship. In the...

A: The system shows "Can not open file" for the following reasons: It cannot find the mentioned file b...

Q: What is the value of the variable count after the function has been called 2 times? void myPrint( in...

A: To solve this problem, first of all you need to know what is static variable. Let’s start the discus...

Q: 4) Write the java code (not a method) the will do the steps to swap the contents in intArr at index ...

A: You need to declare and initialize the variables in intArr which is a array and then you can swap co...

Q: The fibonacci sequence of numbers are as follows:  0,1,1,2,3,5,8,13,21,34,... where F0=0, F1=1, F2=1...

A: Program code to implement a recursive function, fib which accepts an integer input and return the nt...

Q: Write an SQL query that will select OrderID and OrderDate from theOrders table and OrderDetailID fro...

A: To combine rows from more than “2” tables based on a related column between them, a JOIN clause is u...

Q: thank you

A: Given code: XXX;i = j ;YYY;j = tmp; To swap the values between two variables i and j follow the belo...

Q: How to create a class named vehicle in java that contains the variables String manufacturer and Stri...

A: Program: Filename: “Vehicle.java” //Definition of class Vehicle public class Vehicle{     //variable...

Q: Here are my instructions for my C++ Program: Write a program that uses the function isPalindrome giv...

A: A C++ program for the given criteria is as follows, File name: “main.cpp” //Include necessary header...

Q: Re-write the following while loop using as a for loop  int i = 5; while (i &lt; 50) { System.out.pri...

A: Loop has three main parts: Initialization Condition Increment/Decrement While-Loop Format: &lt;Ini...

Q: ... 9. Write a method that checks whether all elements in the indicated column are the same. TicTacT...

A: Programming instructions: Initialize the matrix with strings. Take input from the user for the colu...

Q: Given the following, what is assigned to the lvalue? integer = ('9.9') A. 9 B. 9.9 C. 10 D. None of ...

A: First of all , let us understand what is lvalue . Lvalue: lvalue refers to the locator value which m...

Q: Java

A: Note: Code comments have been included in the source code itself to have a better understanding of t...

Q: Distinguish between a network level firewall and a application level firewall

A: Difference between a network-level firewall and an application-level firewall are as follows:

Q: why some companies decide to retain information systems in-house while others decide to outsource th...

A: Reason for some companies retaining information systems in-house When companies keep certain functi...

Q: Given the following, what is assigned to the lvalue? integer = int('9.9') A. 9 B. 9.9 C. 10 D. None ...

A: ANSWER: Based on two statements, one can predict the answer for the given question. “int ('9.9')”- ...

Q: 5) Write the java code (not a method) to print the contents of an array of integers named intArr hor...

A: Program: //definition of class public class PrintArray {     //definition of main method    public s...

Q: Big data begin used by many organizations these days. Talk about it and how the organization use it ...

A: Big data is basically a combination of unstructured, semi-structured and structured data collected b...

Q: 2.Write a C++ program that will load a 2-dimensional array A (4x4 matrix) with random numbers(range:...

A: Program code: //include the header files #include &lt;cstdlib&gt; #include &lt;ctime&gt; #include&l...

Q: CS Operating System If we use 10 bits to represent the outer page, 8 bits to represent the inner pag...

A: The outer page, inner page and the page offset is indicated in the below figure, Two level address: ...

Q: I have a syntax error with my program code. Can someone help me? Here's the instructions for my C++ ...

A: The given code is perfectly working. The only need is to remove some extra lines which are shown bel...

Q: Hi, the follwing code is return by value but I want to make it return by reference ... please help  ...

A: PROGRAM: //Header file #include&lt;iostream&gt;   //Defining the namespace std using namespace std; ...

Q: Write a program that takes a character as input and outputs one of the four options below. In additi...

A: Following is the C program:Approach: Define the main function take input from the user a character ...

Q: (Apartment problem)  A real estate office handles , say, 50 apartment units. When the rent is, say, ...

A: Since you are not mentioning the programming language. Here we are using C++ to complete this progra...

Q: Hello, Does anybody have the code for this? Thanks. Gradesa) Write a program that reads in the names...

A: Program: # to read from file file_name = open("grades.txt")   #declare the variables name = [] grade...

Q: A year in the modern Gregorian Calendar consists of 365 days. In reality, the earth takes longer to ...

A: Program Explanation – If the given Year is evenly divisible by four (4) then check next if statemen...

Q: Write a complete c++ program that does the following: -  Creates a function called 'convertDistanc...

A: Following is the c++ program Approach: Define function convertDistance which takes as input the int...

Q: Write a function that reads all the numbers from a file into an array.   The file is already open an...

A: The function readData takes into parameters: an ifstream file already opened, an array of double to...

Q: Write a logic flow ,flow chart and program of ; The distance between two cities in kilometers is inp...

A: Take three variables to store the values for a kilometer, meter, and centimeter. Take the input from...

Q: Programing C

A: To solve this problem, First of all you need to create a structure customer with three members, one ...

Q: This is how the program should look like :  Welcome to my Personal Management Program   Choose one o...

A: Filename: “Person.java” //Create an abstract class abstract class Person {       //declare the class...

Q: Provide the all possible spanning trees of a complete rectangular graph (recall the definition of a ...

A: Click to see the answer

Q: For this c++ hw 1) Make a function that reads in 2 integers from the user. (call it Get2Ints) 2) Mak...

A: Below is the C++ program with explanation: - Explanation: - Importing the essential headers and the...

Q: The followingi UML class diagram represent a a java program for a  Design Patterns: Composite Patter...

A: UML: A UML chart is an outline dependent on the UML (Unified Modeling Language) with the end goal o...

Q: Write a query that will group identical movie categories together. The table name is Movies.

A: Creating table movies:   Table name- movies  

Q: A local zoo wants to keep track of how many pounds of food each of its three monkeys eats each day d...

A: Program to calculate the average amount of food eaten per day, minimum amount of food eaten per week...

Q: List reasons a company would be reluctant to move confidential information to the Cloud.

A: Many companies are switching to cloud computing these days for the better performance and speed. Imp...

Q: Question Run the following Java code in Netbeans and draw a UML class diagram to model the program...

A: The given Program is as follows, File name: “experiment.java” //include the required package import ...

Q: What is the difference between Symmetric and Asymmetric key encryption?  What does the acronym GSM s...

A: Symmetric and asymmetric key encryption Symmetric encryption uses a single key that needs to be sha...

Q: Develop Java methods to perform the following operations on an unordered list (using linked lists). ...

A: Programming instructions: Create a class. In the class, create a linked list node and a head of the...

Q: File Name: ArrayOperations.java Class Name: ArrayOperations Problem Description: Write a program to ...

A: To input integer value from the scanner class   you need to use Scanner class which is declared in j...

Q: Here are my Instructions for my C++ Program ExerciseWrite a program that accepts as input:1. The loa...

A: According to your values and as per the condition given in the while loop, the value of the variable...

Q: Will the following code segment compile? If not, indicate why.  Assume the code for a proper impleme...

A: “No”, the given code does not compile without any errors.

Q: Write a complete C++ program in one file here that asks the user to enter a radius for a circle then...

A: Program Approach – Include the essential headers files. Declare the class. Declare the variables re...

Q: Driving is expensive. Write a program with a car's miles/gallon and gas dollars/gallon (both floats)...

A: PROGRAM: #Defining the function deriving_cost def driving_cost(driven_miles, miles_per_gallon, dolla...

Q: Sorry about that. Here's my C++ parameters: Instructions The function printGrade in Example 6-13 is ...

A: The function calculateGrade() returns the character type value ,so you need to declare it as char an...

Q: C++ Program

A: You need to create a function which will print the desired output. In this code, we declare a functi...