Q2: What is the bottleneck in the following system setup, the CPU, memory bus, or the disk set? • The user program continuously performs reads of 64KB blocks, and requires 21 million cycles to process each block. • The operating system requires 1 million cycles of overhead for each I/O operation. • The clock rate is 3GHz. • The maximum sustained transfer rate of the memory bus is 64MB/sec • The read/write bandwidth of the disk controller and the disk drives is 64MB/sec, disk average seek plus rotational latency is 9ms. • There are 20 disks attached to the bus each with its own controller. (Assume that each disk can be controlled independently and ignore disk conflicts.)
Q2: What is the bottleneck in the following system setup, the CPU, memory bus, or the disk set? • The user program continuously performs reads of 64KB blocks, and requires 21 million cycles to process each block. • The operating system requires 1 million cycles of overhead for each I/O operation. • The clock rate is 3GHz. • The maximum sustained transfer rate of the memory bus is 64MB/sec • The read/write bandwidth of the disk controller and the disk drives is 64MB/sec, disk average seek plus rotational latency is 9ms. • There are 20 disks attached to the bus each with its own controller. (Assume that each disk can be controlled independently and ignore disk conflicts.)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
Related questions
Question
Transcribed Image Text:Q2: What is the bottleneck in the following system setup, the CPU, memory bus, or the disk
set?
• The user program continuously performs reads of 64KB blocks, and requires 21 million cycles
to process each block.
• The operating system requires 1 million cycles of overhead for each I/O operation.
• The clock rate is 3GHz.
• The maximum sustained transfer rate of the memory bus is 64MB/sec
• The read/write bandwidth of the disk controller and the disk drives is 64MB/sec, disk average
seek plus rotational latency is 9ms.
• There are 20 disks attached to the bus each with its own controller. (Assume that each disk
can be controlled independently and ignore disk conflicts.)
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by step
Solved in 2 steps
Recommended textbooks for you
Computer Networking: A Top-Down Approach (7th Edi…
Computer Engineering
ISBN:
9780133594140
Author:
James Kurose, Keith Ross
Publisher:
PEARSON
Computer Organization and Design MIPS Edition, Fi…
Computer Engineering
ISBN:
9780124077263
Author:
David A. Patterson, John L. Hennessy
Publisher:
Elsevier Science
Network+ Guide to Networks (MindTap Course List)
Computer Engineering
ISBN:
9781337569330
Author:
Jill West, Tamara Dean, Jean Andrews
Publisher:
Cengage Learning
Computer Networking: A Top-Down Approach (7th Edi…
Computer Engineering
ISBN:
9780133594140
Author:
James Kurose, Keith Ross
Publisher:
PEARSON
Computer Organization and Design MIPS Edition, Fi…
Computer Engineering
ISBN:
9780124077263
Author:
David A. Patterson, John L. Hennessy
Publisher:
Elsevier Science
Network+ Guide to Networks (MindTap Course List)
Computer Engineering
ISBN:
9781337569330
Author:
Jill West, Tamara Dean, Jean Andrews
Publisher:
Cengage Learning
Concepts of Database Management
Computer Engineering
ISBN:
9781337093422
Author:
Joy L. Starks, Philip J. Pratt, Mary Z. Last
Publisher:
Cengage Learning
Prelude to Programming
Computer Engineering
ISBN:
9780133750423
Author:
VENIT, Stewart
Publisher:
Pearson Education
Sc Business Data Communications and Networking, T…
Computer Engineering
ISBN:
9781119368830
Author:
FITZGERALD
Publisher:
WILEY