Welcome!

Linux Containers Authors: Zakia Bouachraoui, Elizabeth White, Yeshim Deniz, Liz McMillan, Pat Romanski

Related Topics: @DevOpsSummit, Linux Containers, Containers Expo Blog, Agile Computing

@DevOpsSummit: Blog Post

Mobile Stress Testing | @DevOpsSummit #DevOps #ContinuousDelivery

While extreme load conditions rarely appear in production, never underestimate the potential for their occurrence

Falling beneath the umbrella of performance testing, both load and stress testing play an important role in assessing the availability and performance of your web or mobile applications under expected and extreme load.

While the terms "stress testing" and "load testing" may be used interchangeably within a testing team or organization, the two differ when it comes to their definitions and purpose.

Stress Testing vs. Load Testing
Load Testing
: A performance-related testing process that places simulated demand on software, web or mobile applications in order to measure responses and systems' behavior under both normal and anticipated peak load conditions.

Its purpose: Providing insight into your application and system's behavior under expected load conditions.

Stress Testing: A testing process designed to push an application's environment to its breaking point so that QA teams can gain an understanding of the upper limits of capacity within the system.

Its purpose: Stress testing exposes issues that may not appear under normal or even expected conditions. It allows testers to determine the software's robustness and ensure that the system fails and recovers in an acceptable manner.

Stress Testing: When, Why and How
When to conduct stress tests
Typically during the software development lifecycle, smaller load tests can be run before a big release or after each sprint/iteration. This allows for the detection of issues that may cause larger performance problems during full scale stress testing.

While some Agile organizations are able to run stress tests at the end of sprints before they release to integration or deploy to production, this strategy is NOT recommended for business critical applications.

When your application absolutely needs to perform for end users, you'll need to run longer peak tests and stress tests during a hardening sprint (or before the release of a new application/update if you're working in a traditional environment) to truly ensure application performance in production. This becomes especially important for eCommerce apps around big holiday seasons, online tax filing services during tax season, universities during class registration periods, etc.

The biggest takeaway here is that stress testing during a hardening sprint or right before a release is absolutely necessary to ensure that your application's performance level meets end user expectations.

Benefits of stress testing
Extreme load conditions are rarely seen in production. Therefore, stress testing benefits organizations by revealing application issues that only become apparent under these extreme conditions. Proper stress tests can also help you uncover the following:

  • Synchronization and timing bugs
  • Interlock problems
  • Priority problems
  • Resource loss bugs
  • Memory leaks
  • Data loss & corruption

Utilizing stress testing tools
When approaching stress testing, you'll want first identify test objectives, key scenarios, the workload you want to apply, and the metrics you'll be tracking. After you've created your test cases, work with a stress testing tool to simulate the required load for each test case and capture performance metrics.

A truly effective stress testing tool will realistically simulate thousands+ of users, analyze your application's performance and monitor your servers under load.

Reaching the Breaking Point
Stress testing is an essential and beneficial process that provides otherwise unattainable insight into the performance of your web and mobile applications under extreme load. Identifying the potential breaking points in your application will allow you to correct them before they become expensive issues in production.

While extreme load conditions rarely appear in production, never underestimate the potential for their occurrence. To learn more about how you can stress test your web or mobile applications in preparation for peak load conditions, check out our Holiday Readiness Case Study here.

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.

IoT & Smart Cities Stories
In his general session at 19th Cloud Expo, Manish Dixit, VP of Product and Engineering at Dice, discussed how Dice leverages data insights and tools to help both tech professionals and recruiters better understand how skills relate to each other and which skills are in high demand using interactive visualizations and salary indicator tools to maximize earning potential. Manish Dixit is VP of Product and Engineering at Dice. As the leader of the Product, Engineering and Data Sciences team at D...
Dynatrace is an application performance management software company with products for the information technology departments and digital business owners of medium and large businesses. Building the Future of Monitoring with Artificial Intelligence. Today we can collect lots and lots of performance data. We build beautiful dashboards and even have fancy query languages to access and transform the data. Still performance data is a secret language only a couple of people understand. The more busine...
Nicolas Fierro is CEO of MIMIR Blockchain Solutions. He is a programmer, technologist, and operations dev who has worked with Ethereum and blockchain since 2014. His knowledge in blockchain dates to when he performed dev ops services to the Ethereum Foundation as one the privileged few developers to work with the original core team in Switzerland.
René Bostic is the Technical VP of the IBM Cloud Unit in North America. Enjoying her career with IBM during the modern millennial technological era, she is an expert in cloud computing, DevOps and emerging cloud technologies such as Blockchain. Her strengths and core competencies include a proven record of accomplishments in consensus building at all levels to assess, plan, and implement enterprise and cloud computing solutions. René is a member of the Society of Women Engineers (SWE) and a m...
Andrew Keys is Co-Founder of ConsenSys Enterprise. He comes to ConsenSys Enterprise with capital markets, technology and entrepreneurial experience. Previously, he worked for UBS investment bank in equities analysis. Later, he was responsible for the creation and distribution of life settlement products to hedge funds and investment banks. After, he co-founded a revenue cycle management company where he learned about Bitcoin and eventually Ethereal. Andrew's role at ConsenSys Enterprise is a mul...
Whenever a new technology hits the high points of hype, everyone starts talking about it like it will solve all their business problems. Blockchain is one of those technologies. According to Gartner's latest report on the hype cycle of emerging technologies, blockchain has just passed the peak of their hype cycle curve. If you read the news articles about it, one would think it has taken over the technology world. No disruptive technology is without its challenges and potential impediments t...
If a machine can invent, does this mean the end of the patent system as we know it? The patent system, both in the US and Europe, allows companies to protect their inventions and helps foster innovation. However, Artificial Intelligence (AI) could be set to disrupt the patent system as we know it. This talk will examine how AI may change the patent landscape in the years to come. Furthermore, ways in which companies can best protect their AI related inventions will be examined from both a US and...
Bill Schmarzo, Tech Chair of "Big Data | Analytics" of upcoming CloudEXPO | DXWorldEXPO New York (November 12-13, 2018, New York City) today announced the outline and schedule of the track. "The track has been designed in experience/degree order," said Schmarzo. "So, that folks who attend the entire track can leave the conference with some of the skills necessary to get their work done when they get back to their offices. It actually ties back to some work that I'm doing at the University of San...
When talking IoT we often focus on the devices, the sensors, the hardware itself. The new smart appliances, the new smart or self-driving cars (which are amalgamations of many ‘things'). When we are looking at the world of IoT, we should take a step back, look at the big picture. What value are these devices providing. IoT is not about the devices, its about the data consumed and generated. The devices are tools, mechanisms, conduits. This paper discusses the considerations when dealing with the...
Bill Schmarzo, author of "Big Data: Understanding How Data Powers Big Business" and "Big Data MBA: Driving Business Strategies with Data Science," is responsible for setting the strategy and defining the Big Data service offerings and capabilities for EMC Global Services Big Data Practice. As the CTO for the Big Data Practice, he is responsible for working with organizations to help them identify where and how to start their big data journeys. He's written several white papers, is an avid blogge...