Customer Service Chat
Get quote & make Payment
Capacity Planning of Computer Systems and Networks, Operation Management
A system containing one CPU and a disk is serving database transactions. A transaction gets service from CPU and then from the main memory before leaving this system. In case, the access to the main memory is a miss, the transaction moves to receive service from a disk. In case of a miss, the CPU needs to process the transaction again. (We are assuming simple system here, real systems are complex).
CPU processing time for each visit by a transaction = 0.03 sec
Disk access time = 0.02 sec
No. of disk access generated by each transaction visit to disk mean that after each access it goes back to CPU)
Memory access time = 0.001 sec
Miss from the main memory = 10 %
= 10 (note this doesn’t
Transaction range = 10-50 transactions/sec (Check for 10,20...50)
Part 1:- Calculate the service demand and the utilization of all the resources. Determine which resource is the bottleneck for the system with throughput bounds analysis to show the feasibility of the system for the given range of transactions.
(5 marks) Part 2:- The system is not feasible for the complete range of the transactions. Following
three upgrades can be applied to the system:
a) Add two more CPUs, each CPU gets 1/3rd of the transactions
b) Double the main memory size, (half the number of misses).
c) Double the number of disks, each disk gets half of the transactions
d) Replace the disk with a faster disk of access time 0.015 sec.
Calculate the utilization of each resource and their throughput for the following combinations of upgrades, also point out which device is the bottleneck in each case (if any). Consider the transaction rate as 50/sec
2) a + b
3) a+ b + c
4) a+ b + d
CS9334 Assignment 1, March 28, 2013, 4:03 PM, Page 1
Part-3 (Bonus Marks) :- Another transaction type is to be introduced to the system that takes 5 disk accesses and CPU processing time of 0.1 sec. The combined transaction rate is 50 transactions/sec. With the modified system of the part2 (Option - 3) ( with upgrades of a+b+c), calculate the highest number of new transactions that the system can support. What is the impact of introducing this new transaction type?
Two sets of analysts working on a marine project require access to a database server. Set A and B include 4 and 5 analysts respectively. Set A analyst queries require 10 records to be read from the DB server’s disk on average, and require CPU processing time of 20 msec. Set B analyst queries require 5 records to be read from the DB server’s disk on average, and CPU time of 70 msec. The disk read time per record is 10msec. If only one set of analysts is allowed to access the DB server at any time, calculate the throughput of the DB system for both set of analysts.
Note: Numbers without explanation will receive poor marks.
Posted Date: 4/3/2013 3:02:15 AM | Location : Australia
Ask an Expert
Capacity Planning of Computer Systems and Networks, Assignment Help, Ask Question on Capacity Planning of Computer Systems and Networks, Get Answer, Expert's Help, Capacity Planning of Computer Systems and Networks Discussions
Write discussion on Capacity Planning of Computer Systems and Networks
Your posts are moderated
Write your message here..
How to determine the capabilities of information systems, A young man has d...
A young man has decided to open his own auto repair shop. He will need a management information system and he has asked you for help. Determine the capabilities of information syst
Describe a diet is being prepared for the university, A diet is being prepa...
A diet is being prepared for the University of Arizona dorms. The objective is to feed the students at the least cost, but the diet must have between 1,800 and 3,600 calories. No m
Comparing the concept of viewing a firm''s suppliers explain, Provide at le...
Provide at least 3 different factors when comparing the concept of viewing a firm's suppliers as adversaries with viewing them as partners.
Explain phases in a project life cycle, An important factor used to determi...
An important factor used to determine the phases in a project life cycle are the control needs of the organization(s) involved in the project. True or False
Explain what are the issues of management does google needs, What are the i...
What are the issues of management does Google strategy 2010 needs to address? How could they be analysed and evaluated?
Ramjee Somjee Dutt, After working for 30 years, Ramjee Somjee Dutt opted fo...
After working for 30 years, Ramjee Somjee Dutt opted for VRS and started a courier company and did very well in the first four years. He was now looking for expansion of his busine
Find the total book value of the assets, Alfonzo's Pizzeria purchased its b...
Alfonzo's Pizzeria purchased its building 8 years ago at a cost of $76,000. The building is currently valued at $212,000. Alfonzo's has other fixed assets that cost $58,000 and are
Assignment, transformation process in an organization
transformation process in an organization
Role of production planning and control, Role of Production Planning and Co...
Role of Production Planning and Control in Operation Management Operations are at the centre of the diagram in figure given below because they are the dynamic doing elements o
Explain firms do not compete only against global competitors, Firms do not ...
Firms do not compete only against global competitors, but against- Their suppliers. Themselves. The customers of their competitors. Their competitors supply chains.
Accounting Assignment Help
Economics Assignment Help
Finance Assignment Help
Statistics Assignment Help
Physics Assignment Help
Chemistry Assignment Help
Math Assignment Help
Biology Assignment Help
English Assignment Help
Management Assignment Help
Engineering Assignment Help
Programming Assignment Help
Computer Science Assignment Help
Why Us ?
~24x7 hrs Support
~Quality of Work
~Time on Delivery
~Privacy of Work
Human Resource Management
Literature Review Writing Help
Terms & Conditions
Copyright by ExpertsMind IT Educational Pvt. Ltd.