Suppose you have a processor with a base CPI 1.0, assuming all references hit in the primary cache (L1), and a clock rate of 3 GHz. Assume that you have two caches (L1 and L2). L2 cache access time is 10 ns and main memory access time is 200 ns, including all the miss handling. Suppose the miss rate per instruction at the L1 cache is 10%, L2 cache is 5%. a) What is the effective CPI? b) What will be the effective CPI if we add a new cache (L3) that has 50 ns access time and reduce the miss rate to main memory to 1%?
Suppose you have a processor with a base CPI 1.0, assuming all references hit in the primary cache (L1), and a clock rate of 3 GHz. Assume that you have two caches (L1 and L2). L2 cache access time is 10 ns and main memory access time is 200 ns, including all the miss handling. Suppose the miss rate per instruction at the L1 cache is 10%, L2 cache is 5%. a) What is the effective CPI? b) What will be the effective CPI if we add a new cache (L3) that has 50 ns access time and reduce the miss rate to main memory to 1%?
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
Topic Video
Question
Suppose you have a processor with a base CPI 1.0, assuming all references hit in the
primary cache (L1), and a clock rate of 3 GHz. Assume that you have two caches (L1
and L2). L2 cache access time is 10 ns and main memory access time is 200 ns,
including all the miss handling. Suppose the miss rate per instruction at the L1 cache is
10%, L2 cache is 5%.
a) What is the effective CPI?
b) What will be the effective CPI if we add a new cache (L3) that has 50 ns
access time and reduce the miss rate to main memory to 1%?
primary cache (L1), and a clock rate of 3 GHz. Assume that you have two caches (L1
and L2). L2 cache access time is 10 ns and main memory access time is 200 ns,
including all the miss handling. Suppose the miss rate per instruction at the L1 cache is
10%, L2 cache is 5%.
a) What is the effective CPI?
b) What will be the effective CPI if we add a new cache (L3) that has 50 ns
access time and reduce the miss rate to main memory to 1%?
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 3 steps with 2 images
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.Recommended textbooks for you
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
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