Book Image

Software Architecture with Python

By : Anand Balachandran Pillai
Book Image

Software Architecture with Python

By: Anand Balachandran Pillai

Overview of this book

This book starts by explaining how Python fits into an application's architecture. As you move along, you will get to grips with architecturally significant demands and how to determine them. Later, you’ll gain a complete understanding of the different architectural quality requirements for building a product that satisfies business needs, such as maintainability/reusability, testability, scalability, performance, usability, and security. You will also use various techniques such as incorporating DevOps, continuous integration, and more to make your application robust. You will discover when and when not to use object orientation in your applications, and design scalable applications. The focus is on building the business logic based on the business process documentation, and understanding which frameworks to use and when to use them. The book also covers some important patterns that should be taken into account while solving design problems, as well as those in relatively new domains such as the Cloud. By the end of this book, you will have understood the ins and outs of Python so that you can make critical design decisions that not just live up to but also surpassyour clients’ expectations.
Table of Contents (18 chapters)
Software Architecture with Python
Credits
About the Author
About the Reviewer
www.PacktPub.com
Customer Feedback
Preface
Index

Concurrency


A system's concurrency is the degree to which the system is able to perform work simultaneously instead of sequentially. An application written to be concurrent in general, can execute more units of work in a given time than one which is written to be sequential or serial.

When one makes a serial application concurrent, one makes the application better utilize the existing compute resources in the system—CPU and/or RAM—at a given time. Concurrency, in other words, is the cheapest way of making an application scale inside a machine in terms of the cost of compute resources.

Concurrency can be achieved using different techniques. The common ones include the following:

  1. Multithreading: The simplest form of concurrency is to rewrite the application to perform parallel tasks in different threads. A thread is the simplest sequence of programming instructions that can be performed by a CPU. A program can consist of any number of threads. By distributing tasks to multiple threads, a program...