A memory hierarchy has a single cache that stores both instructions and data and has a miss rate of 2%. The access to main memory has a 100-cycle penalty if it is missed. Jumps account for 15% of the instructions, 20% of the stores, 20% of the loads (30% of which include values needed in the following instruction), 10% of the branches (20% of the time), and 35% of the ALU instructions. During the ID stage, jumps and branches are determined. What is the difference between the base and effective CPIs?
A memory hierarchy has a single cache that stores both instructions and data and has a miss rate of 2%. The access to main memory has a 100-cycle penalty if it is missed. Jumps account for 15% of the instructions, 20% of the stores, 20% of the loads (30% of which include values needed in the following instruction), 10% of the branches (20% of the time), and 35% of the ALU instructions. During the ID stage, jumps and branches are determined. What is the difference between the base and effective CPIs?
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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A memory hierarchy has a single cache that stores both instructions and data and has a miss rate of 2%. The access to main memory has a 100-cycle penalty if it is missed. Jumps account for 15% of the instructions, 20% of the stores, 20% of the loads (30% of which include values needed in the following instruction), 10% of the branches (20% of the time), and 35% of the ALU instructions. During the ID stage, jumps and branches are determined. What is the difference between the base and effective CPIs?
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