Performance testing is a type of testing intended to determine the responsiveness, reliability, throughput, interoperability, and scalability of a system and/or application under a given workload. It is critical and essential to the success of any software product's launch and maintenance. It also plays an integral part in scaling an application out to support a wider user base.
Apache JMeter is a free and open source, cross-platform performance testing tool that has been around since the late 90s. It is mature, robust, portable, and highly extensible. It has a large user base and offers a lot of plugins to aid testing.
This is a practical hands-on book that focuses on how to leverage Apache JMeter to meet your testing needs. It starts with a quick introduction on performance testing, but quickly moves into engaging topics including recording test scripts, monitoring system resources, an extensive look at several JMeter components, leveraging the cloud for testing, extending Apache JMeter capabilities via plugins, and so on. Along the way, you will do some scripting, learn and use tools such as Vagrant and Apache Tomcat, and be armed with all the knowledge you need to take on your next testing engagement.
Whether you are a developer or tester, this book is sure to impact you with some valuable knowledge to aid you in attaining success in your future testing endeavors.
Chapter 1, Performance Testing Fundamentals, covers the fundamentals of performance testing and the installation and configuration of JMeter.
Chapter 2, Recording Your First Test, dives into recording your first JMeter test script and covers the anatomy of a JMeter test script.
Chapter 3, Submitting Forms, explores form submission in detail. It includes handling various HTML form elements (checkboxes, radio, file uploads and downloads, and so on), JSON data, and XML.
Chapter 4, Managing Sessions, explains session management, including cookies and URL rewriting.
Chapter 5, Monitoring Tests in Real-Time, focuses on active monitoring and analysis of test execution results, as well as new components in JMeter 3 that make it possible.
Chapter 6, Distributed Testing, takes an in-depth look at leveraging cloud for performance testing. We dive into tools such as Vagrant and AWS, and explore the existing cloud-testing platforms BlazeMeter and Flood.io.
Chapter 7, Helpful Tips - Part 1, provides you with helpful techniques and tips for getting the most out of JMeter.
Chapter 8, Helpful Tips - Part 2, further provides you with more helpful techniques and tips continued from Chapter 7, Helpful Tips - Part 1.
- A computer with internet connection
- Apache JMeter: http://jmeter.apache.org/
- Java Runtime Environment (JRE) or Java Development Kit (JDK): http://www.oracle.com/technetwork/java/javase/downloads/index.html
In addition, for Chapter 5, Monitoring Tests in Real-Time, you need the following:
For Chapter 6, Distributed Testing, you need these:
- Vagrant: http://www.vagrantup.com/
- AWS account: http://aws.amazon.com/
- BlazeMeter account: http://blazemeter.com/
- Flood.io account: https://flood.io/
- Code samples: https://github.com/ptwj/ptwj-code/tree/v3
The book contains pointers and additional helpful links in setting all these up.
This book is for software professionals who want to understand and improve the performance of their applications with Apache JMeter.
In this book, you will find a number of text styles that distinguish between different kinds of information. Here are some examples of these styles and an explanation of their meaning.
Code words in text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles are shown as follows: "Now, edit $JMETER_HOME/bin/jmeter-server using an editor of choice. "
A block of code is set as follows:
/private/bank/account/ACC1/operations.html /private/bank/account/ACC1/year/2013/month/1/page/0/operations.json ...
Any command-line input or output is written as follows:
./jmeter.shNew terms and important words are shown in bold. Words that you see on the screen, for example, in menus or dialog boxes, appear in the text like this: "Right-click on Test Plan and navigate to Add | Threads (User) | Thread Group."
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