a) By how much is the total execution time changed if the time for class D is reduced by 20% and the time for class C is increased by 10% (assuming no other changes)? b) If we want to reduce the total execution time by 20% by optimizing class A only, what is the arget execution time of class A instructions in order to achieve the reduction (assuming all other nstructions are not changed)? c) Can the total time be reduced by 25% if we only optimize class B? Use calculation to justify vour answer.
a) By how much is the total execution time changed if the time for class D is reduced by 20% and the time for class C is increased by 10% (assuming no other changes)? b) If we want to reduce the total execution time by 20% by optimizing class A only, what is the arget execution time of class A instructions in order to achieve the reduction (assuming all other nstructions are not changed)? c) Can the total time be reduced by 25% if we only optimize class B? Use calculation to justify vour answer.
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
Related questions
Question
![a) By how much is the total execution time changed if the time for class D is reduced by 20%
and the time for class C is increased by 10% (assuming no other changes)?
b) If we want to reduce the total execution time by 20% by optimizing class A only, what is the
arget execution time of class A instructions in order to achieve the reduction (assuming all other
nstructions are not changed)?
c) Can the total time be reduced by 25% if we only optimize class B? Use calculation to justify
vour answer.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F1596ec61-3286-45f1-9b9e-af4e30ef4e78%2F12a3a788-94f7-465f-8423-f660ee777176%2Fycvk7y8.png&w=3840&q=75)
Transcribed Image Text:a) By how much is the total execution time changed if the time for class D is reduced by 20%
and the time for class C is increased by 10% (assuming no other changes)?
b) If we want to reduce the total execution time by 20% by optimizing class A only, what is the
arget execution time of class A instructions in order to achieve the reduction (assuming all other
nstructions are not changed)?
c) Can the total time be reduced by 25% if we only optimize class B? Use calculation to justify
vour answer.
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