Welcome!

Related Topics: @DevOpsSummit, Java IoT, Microservices Expo, Linux Containers, @CloudExpo, SDN Journal

@DevOpsSummit: Article

What to Look for in an Agile Load Testing Solution

You should aim to use tools that enable you to do the process that works best for your team

While any load testing solution will enable you to do some sort of load testing in your Agile environment, comparatively few enable you to follow recommended best practices and overcome the challenges many teams face with load and performance testing on an Agile project.

When considering an Agile load testing solution, you want to ask the following questions:

  1. How quickly can tests be designed in the tool by any tester or developer (not just your performance testing gurus)?
  2. Will my teams be able to share test scenarios and test results?
  3. To what extent does the tool integrate with Continuous Integration Servers to automate the testing process?
  4. Will everyone on my teams be able to create and understand the test reports and be able to act on them?
  5. Will test conditions be able to replicate what happens in production?
  6. Does the solution support the technologies we used to build the application and the technologies we will plan to use in the future?

Simple Test Design with Automation
Agile teams rarely have a dedicated performance engineer who shows up on demand to script up a new test when changes to an application causes errors in the old test. You may have one or two testers on your team, but they're rarely performance experts. In some cases, you may have developers writing their own tests. In any of these scenarios, these team members are going to be pressed for time, and this is no place for a tool that is difficult to use and configure.

In developing and executing performance tests, several key features go a long way in improving test productivity, including support for:

  • Easily launching the recording of a virtual user profile (preferably in one click)
  • Defining advanced behaviors (with structures such as conditions and loops) via a graphical interface
  • Automatic handling of dynamic parameters. This includes a set of correlation rules for well-known server frameworks. Ideally, the solution will dynamically detect and handle custom parameters specific to your application
  • Sharing common script parts, such as login or logout transactions, between multiple virtual user profiles

This is not an exhaustive list of usability features that can help team members work more efficiently; rather it should be considered as a baseline of minimum required capabilities for an efficient load testing solution.

Collaboration Capabilities
Working on an Agile team is all about collaborating, and you'll likely want to share things like virtual user profiles, groups, monitoring configurations, load profiles, and test results with team members. You should look at load testing solutions that allow several team members to be involved in the creation and analysis of test cases and enable testers to quickly share results with developers to help them understand what went wrong and what needs to be fixed.

Integration with Continuous Integration Servers
You should consider a load testing solution that integrates with Continuous Integration servers so that you can both automate the triggering of a performance test with every build and also quickly see the results of those tests along with the other tests kicked off during the build to provide instant feedback to development. The ability to the see performance trends over several builds is crucial for performance regression testing. Testers need to be able to pinpoint exactly which build and code changes started a trend of performance degradation.

Automating the interaction between the CIS and the load testing is crucial to ensuring that performance becomes a regular goal for every iteration. When load tests are only done manually on Agile teams, it becomes easy for them to become tasks that are put off until the next sprint.

Reports that Are Easy to Build and Understand
Because not every member of your team is a performance guru, you should look for load testing solutions that provide results that are easy to create, understand, and act on. This includes reports developers can interpret to make important code changes, ops teams can use to change infrastructure configurations, and management can read to get a view of overall performance metrics. Functionality like drag-and-drop metrics and filtering will significantly reduce the time needed to build out reports. Because reporting needs change, it is a good idea to keep your options open with a tool that supports multiple formats, including PDF, Word, HTML, and XML for integration with other systems.

Realistic Tests
Most web applications and mobile applications these days are going to be used by a number of users in many locations on different devices with multiple browsers over various network conditions. You should look for a load testing solution that can do the following:

  • Emulate real-world network conditions. When choosing a load testing solution, look for one that provides WAN emulation that can limit bandwidth and simulate latency and packet loss to ensure that the virtual users download the content of the web application at a realistic rate. This capability is particularly important when testing mobile applications, because mobile devices typically operate with less bandwidth than laptops and desktops and are greatly affected by changes in latency and packet loss especially when signal strength is weak.
  • Device and browser support. Similarly, look for a solution that can record from any browser or mobile device and simulate those back during the load tests. Simulating devices is important because you need the appropriate server content and number of parallel connections for realistic response times and server load. In addition, modern browsers have the ability to parallelize HTTP requests as they retrieve a web page's static resources. These parallel requests require more connections with the server and can lengthen response times. Load testing solutions that do not parallelize requests are incapable of producing truly realistic performance tests for web applications.
  • Test from outside the firewall. The overwhelming majority of web and mobile apps are accessed by users from outside the firewall. While it is absolutely crucial to be able to test internally in an Agile environment, in order to truly understand how location will affect the performance for your users, you need to look at a solution that is also capable of generating load from cloud servers around the world. You might also consider a solution that offers the ability to generate load from multiple cloud providers to reduce the risk of relying upon a single source of cloud load generation.

Support for Your App's Technologies
To test applications built with Adobe Flex, Microsoft Silverlight, Real-Time Messaging Protocol (RTMP), AJAX Push, HTML5 or WebSocket technologies, you need a load testing tool with built-in support for the technologies you're using. Without this specialized support it can be very difficult, if not impossible, to effectively test the performance of your applications.

This can be especially problematic for Agile teams that are adding new features and functionality at a rapid pace since developers often want to use the newest technologies available to them. One minute your developers could be experimenting with Google SPDY and another minute they are adding streaming video to an app; you need to know that your load testing solution will be able to test how these changes affect performance.

No matter what load testing solution you choose, you want to make sure it's the right fit for your team and your application. To quote the Agile Manifesto, "Individuals and interactions over processes and tools." You should aim to use tools that enable you to do the process that works best for your team - not change how your team interacts based upon the limitations of the tools you use.

More Stories By Tim Hinds

Tim Hinds is the Product Marketing Manager for NeoLoad at Neotys. He has a background in Agile software development, Scrum, Kanban, Continuous Integration, Continuous Delivery, and Continuous Testing practices.

Previously, Tim was Product Marketing Manager at AccuRev, a company acquired by Micro Focus, where he worked with software configuration management, issue tracking, Agile project management, continuous integration, workflow automation, and distributed version control systems.

Comments (0)

Share your thoughts on this story.

Add your comment
You must be signed in to add a comment. Sign-in | Register

In accordance with our Comment Policy, we encourage comments that are on topic, relevant and to-the-point. We will remove comments that include profanity, personal attacks, racial slurs, threats of violence, or other inappropriate material that violates our Terms and Conditions, and will block users who make repeated violations. We ask all readers to expect diversity of opinion and to treat one another with dignity and respect.


Latest Stories
"Storage is growing. All of IDC's estimates say that unstructured data is now 80% of the world's data. We provide storage systems that can actually deal with that scale of data - software-defined storage systems," stated Paul Turner, Chief Product and Marketing Officer at Cloudian, in this SYS-CON.tv interview at 17th Cloud Expo, held November 3-5, 2015, at the Santa Clara Convention Center in Santa Clara, CA.
The best way to leverage your Cloud Expo presence as a sponsor and exhibitor is to plan your news announcements around our events. The press covering Cloud Expo and @ThingsExpo will have access to these releases and will amplify your news announcements. More than two dozen Cloud companies either set deals at our shows or have announced their mergers and acquisitions at Cloud Expo. Product announcements during our show provide your company with the most reach through our targeted audiences.
20th Cloud Expo, taking place June 6-8, 2017, at the Javits Center in New York City, NY, will feature technical sessions from a rock star conference faculty and the leading industry players in the world. Cloud computing is now being embraced by a majority of enterprises of all sizes. Yesterday's debate about public vs. private has transformed into the reality of hybrid cloud: a recent survey shows that 74% of enterprises have a hybrid cloud strategy.
Bert Loomis was a visionary. This general session will highlight how Bert Loomis and people like him inspire us to build great things with small inventions. In their general session at 19th Cloud Expo, Harold Hannon, Architect at IBM Bluemix, and Michael O'Neill, Strategic Business Development at Nvidia, discussed the accelerating pace of AI development and how IBM Cloud and NVIDIA are partnering to bring AI capabilities to "every day," on-demand. They also reviewed two "free infrastructure" pr...
Cloud Expo, Inc. has announced today that Aruna Ravichandran, vice president of DevOps Product and Solutions Marketing at CA Technologies, has been named co-conference chair of DevOps at Cloud Expo 2017. The @DevOpsSummit at Cloud Expo New York will take place on June 6-8, 2017, at the Javits Center in New York City, New York, and @DevOpsSummit at Cloud Expo Silicon Valley will take place Oct. 31-Nov. 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA.
Have you ever noticed how some IT people seem to lead successful, rewarding, and satisfying lives and careers, while others struggle? IT author and speaker Don Crawley uncovered the five principles that successful IT people use to build satisfying lives and careers and he shares them in this fast-paced, thought-provoking webinar. You'll learn the importance of striking a balance with technical skills and people skills, challenge your pre-existing ideas about IT customer service, and gain new in...
In his general session at 18th Cloud Expo, Lee Atchison, Principal Cloud Architect and Advocate at New Relic, discussed cloud as a ‘better data center’ and how it adds new capacity (faster) and improves application availability (redundancy). The cloud is a ‘Dynamic Tool for Dynamic Apps’ and resource allocation is an integral part of your application architecture, so use only the resources you need and allocate /de-allocate resources on the fly.
SYS-CON Events announced today that Hitrons Solutions will exhibit at the 19th International Cloud Expo, which will take place on November 1–3, 2016, at the Santa Clara Convention Center in Santa Clara, CA. Hitrons Solutions Inc. is distributor in the North American market for unique products and services of small and medium-size businesses, including cloud services and solutions, SEO marketing platforms, and mobile applications.
The Internet of Things will challenge the status quo of how IT and development organizations operate. Or will it? Certainly the fog layer of IoT requires special insights about data ontology, security and transactional integrity. But the developmental challenges are the same: People, Process and Platform. In his session at @ThingsExpo, Craig Sproule, CEO of Metavine, demonstrated how to move beyond today's coding paradigm and shared the must-have mindsets for removing complexity from the develop...
@DevOpsSummit at Cloud taking place June 6-8, 2017, at Javits Center, New York City, is co-located with the 20th International Cloud Expo and will feature technical sessions from a rock star conference faculty and the leading industry players in the world. The widespread success of cloud computing is driving the DevOps revolution in enterprise IT. Now as never before, development teams must communicate and collaborate in a dynamic, 24/7/365 environment. There is no time to wait for long developm...
For basic one-to-one voice or video calling solutions, WebRTC has proven to be a very powerful technology. Although WebRTC’s core functionality is to provide secure, real-time p2p media streaming, leveraging native platform features and server-side components brings up new communication capabilities for web and native mobile applications, allowing for advanced multi-user use cases such as video broadcasting, conferencing, and media recording.
Almost two-thirds of companies either have or soon will have IoT as the backbone of their business. Though, IoT is far more complex than most firms expected with a majority of IoT projects having failed. How can you not get trapped in the pitfalls? In his session at @ThingsExpo, Tony Shan, Chief IoTologist at Wipro, will introduce a holistic method of IoTification, which is the process of IoTifying the existing technology portfolios and business models to adopt and leverage IoT. He will delve in...
In his session at @ThingsExpo, Steve Wilkes, CTO and founder of Striim, will delve into four enterprise-scale, business-critical case studies where streaming analytics serves as the key to enabling real-time data integration and right-time insights in hybrid cloud, IoT, and fog computing environments. As part of this discussion, he will also present a demo based on its partnership with Fujitsu, highlighting their technologies in a healthcare IoT use-case. The demo showcases the tracking of patie...
DevOps and microservices are permeating software engineering teams broadly, whether these teams are in pure software shops but happen to run a business, such Uber and Airbnb, or in companies that rely heavily on software to run more traditional business, such as financial firms or high-end manufacturers. Microservices and DevOps have created software development and therefore business speed and agility benefits, but they have also created problems; specifically, they have created software securi...
In today's enterprise, digital transformation represents organizational change even more so than technology change, as customer preferences and behavior drive end-to-end transformation across lines of business as well as IT. To capitalize on the ubiquitous disruption driving this transformation, companies must be able to innovate at an increasingly rapid pace. Traditional approaches for driving innovation are now woefully inadequate for keeping up with the breadth of disruption and change facing...