Basic server model, Operating System

Assignment Help:

Suppose we want to program a Web server; we could easily do so without using concurrency, as follows:

while(true)
wait connection
read from socket and parse url
look up url contents in cache
if (!in cache)
fetch from disk
put in cache
send data to client

How do we make this codework for lots and lots of clients? Since there are a lot of slowoperations being performed (e.g. connecting to the networking, accessing the disk, etc), processing only one client at a time clearly is not scalable. Our goal then is to build a concurrent application that both minimizes latency and maximizes parallelism.


Related Discussions:- Basic server model

Major locking errors, When programming with threads, there are three very c...

When programming with threads, there are three very common mistakes that programmers often make: 1. locking twice (depending on the system and type of lock, can cause crashes, h

Computer number systems, Binary number based systems   Binary is a  ' base...

Binary number based systems   Binary is a  ' base 2' number system, only two numbers exist namely '0' and '1'. Conversion from binary to base 10 is easy if the number column techn

Which algorithm makes the most efficient use of memory, Question : (a) ...

Question : (a) The dynamic allocation problem is how to satisfy a request of size n from a list of free holes into memory. The best-fit, first-fit and worst-fit strategies are

List three ways of allocating storage, List three ways of allocating storag...

List three ways of allocating storage, and give advantages of each. a. Contiguous allocation. Fastest, if no changes are to be made. Also simplest for random access files. b

What is a latency time, What is a Latency Time Latency Time is the time...

What is a Latency Time Latency Time is the time required through a sector to reach below read/write head.

Define properties of real time operating system, Define properties of Real ...

Define properties of Real time operating system Real time :- Often used in a dedicated application, this system reads information from sensors and must respond within a fixed a

Explain tightly coupled systems and loosely coupled system, Differentiate t...

Differentiate tightly coupled systems and loosely coupled systems? Loosely coupled systems:-  Every processor has its own local memory  Every processor can communicate

How does communication takes place in a distributed system?, How does commu...

How does communication takes place in a distributed system? Distributed systems depend on the networking for their functionality. A network is a communication path among two

What the different paging techniques, The different paging techniques are ...

The different paging techniques are 1. Multilevel paging or hierarchical paging method: In definite cases the page table may consist up to 1 million entries. This would be

Explain types of file allocation-contiguous allocation, Contiguous allocati...

Contiguous allocation: Every file will be allocated contiguous space in the memory. Allow the block size be 1K If a 50K files desires to be allocated space after t

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd