Welcome!

@CloudExpo Authors: Yeshim Deniz, Elizabeth White, Nate Vickery, Ed Featherston, Destiny Bertucci

Related Topics: Microservices Expo, Java IoT, Microsoft Cloud, Machine Learning , Agile Computing, @CloudExpo

Microservices Expo: Article

Load Testing: Same Old, Same Old or a Whole New Ball Game?

How can we be prepared for the future of load and performance testing?

Bonjour Foxes!

I started my career as a Telecom Engineer for Rational Software in the load testing space back in the late '90s, and when I look back on the last decade, there were enormous advances in the broader IT world including development methodologies, processing speeds, network speeds, mobile devices (it's hard to believe the first iPhone was only released 6 years ago). But the question is: Has the world of load and performance testing really changed all that much? Are the missions the same? Are the challenges different? And how can we be prepared for the future of load and performance testing?

Let's start with what hasn't changed:

Websites crash.
Crashes are a reality today just as much as they were 10 years ago. While many companies have become aware of big events (e.g., Cyber Monday, big ad campaigns) that cause traffic spikes, exact traffic levels are still difficult to predict. One big difference between now and then is the sheer number of websites on the Internet. According to Netcraft, the number of active sites on the Internet has increased by almost 1000% over the past ten years. More websites = more crashes.

Developers still think their code is bug-free.
Being a load tester can sometimes come with the occasional power trip that results from crashing an application written by developers who think their code is perfect. While I'm sure their code is very good, load testing can still quickly uncover any flaws in the code or architecture that can cause performance issues.

Load testing is still pushed off until late in the development cycle.
This is a reality most testers just have to deal with. Testing in general, but particularly load and performance testing, are held off until the end of the development cycle, which can be particularly frustrating for testers who can be blamed for holding up a release.

HTTP is still a connectionless protocol.
Furthermore, it's being used to drive a world that is becoming increasingly connected. In fact, the vast majority of advances in web technologies (cookies, sessions, AJAX, WebSockets, SPDY, etc.) have been created in order to overcome the HTTP connectionless limitations. For load testers, this means it still causes complications.

What Has Changed?
Load testing is becoming a mandatory step in the development process.

I've been talking to more and more companies these days that are requiring that all applications go through load and performance testing before they're deployed to production. This is especially true for new online services that know that they only have one chance to show their best or likely lose that customer forever.

The performance of applications is becoming more important than the breadth of functionality.
For some companies like insurance and banks, the importance of application performance is much higher than the pure number of functions their apps can perform. This means that load and performance testers are playing more prominent roles within these development organizations.

The number of technologies built over HTTP is growing each month.
More and more technologies are being developed to make the web faster, more secure and more reactive, and more and more development organizations are adopting them at faster rates. This means load testers are required to test apps containing complex technologies they've never seen before, and it's no easy task to test apps utilizing AJAX, SPDY, WebSockets, video streaming, etc.

App developers have to consider the performance of their apps on mobile devices and networks.
Morgan Stanley
has predicted that mobile Internet users will surpass desktop Internet users by the end of the year. With this in mind, performance testers need to be able to re-create the use cases and network conditions actual users will experience with several different network types and several different devices.

What can you do to handle the realities of today and be prepared for load testing world of tomorrow?

1. Don't avoid load and performance testing.
If you're one of those people who think your apps will be fine and users will do the testing in production, I hope for your sake that your developers actually do write bug-free code. Remember, your end-users will not be as forgiving or as patient as virtual users are when your application is under high load if you recall the old Amazon.com statistic about losing 1% of sales for every 100 ms delay in response times.

2. Make your tests as realistic as possible.
Load testing is much easier these days with the tools available, but don't think it's a "point & click" operation. I see too many companies running "load tests" that do not simulate the number of users observed in production nor the conditions under which the apps will be used.

3. Make sure your load testing tool can match the rhythm of the technical "dance".
Developers and architects are going to want to take advantage of the latest technologies, even some that are still in beta. As a tester, you and your tool shouldn't be the bottleneck for the product launch. Make sure your tool supports your needs as well as the needs of your development organization.

With all of the advances in web and mobile application technologies and the instant response times end-users expect these days, the performance of applications is only going to grow in importance. My advice to load testers is to stay on top of these trends because they move quickly. It's certainly an exciting time to be a load tester.

More Stories By Hervé Servy

Hervé Servy is a Senior Performance Engineer at Neotys. He has spent 10 years working for IBM-Rational and Microsoft pre-sales and marketing in France and the Middle East. During the past 3 years, as a personal project, Hervé founded a nonprofit organization in the health 2.0 area. If that isn’t techie enough, Hervé was also born on the very same day Apple Computer was founded.

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.


@CloudExpo Stories
In his keynote at 18th Cloud Expo, Andrew Keys, Co-Founder of ConsenSys Enterprise, provided an overview of the evolution of the Internet and the Database and the future of their combination – the Blockchain. 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 settle...
The cloud era has reached the stage where it is no longer a question of whether a company should migrate, but when. Enterprises have embraced the outsourcing of where their various applications are stored and who manages them, saving significant investment along the way. Plus, the cloud has become a defining competitive edge. Companies that fail to successfully adapt risk failure. The media, of course, continues to extol the virtues of the cloud, including how easy it is to get there. Migrating...
Blockchain. A day doesn’t seem to go by without seeing articles and discussions about the technology. According to PwC executive Seamus Cushley, approximately $1.4B has been invested in blockchain just last year. In Gartner’s recent hype cycle for emerging technologies, blockchain is approaching the peak. It is considered by Gartner as one of the ‘Key platform-enabling technologies to track.’ While there is a lot of ‘hype vs reality’ discussions going on, there is no arguing that blockchain is b...
You know you need the cloud, but you’re hesitant to simply dump everything at Amazon since you know that not all workloads are suitable for cloud. You know that you want the kind of ease of use and scalability that you get with public cloud, but your applications are architected in a way that makes the public cloud a non-starter. You’re looking at private cloud solutions based on hyperconverged infrastructure, but you’re concerned with the limits inherent in those technologies.
Coca-Cola’s Google powered digital signage system lays the groundwork for a more valuable connection between Coke and its customers. Digital signs pair software with high-resolution displays so that a message can be changed instantly based on what the operator wants to communicate or sell. In their Day 3 Keynote at 21st Cloud Expo, Greg Chambers, Global Group Director, Digital Innovation, Coca-Cola, and Vidya Nagarajan, a Senior Product Manager at Google, discussed how from store operations and ...
In his session at 21st Cloud Expo, Raju Shreewastava, founder of Big Data Trunk, provided a fun and simple way to introduce Machine Leaning to anyone and everyone. He solved a machine learning problem and demonstrated an easy way to be able to do machine learning without even coding. Raju Shreewastava is the founder of Big Data Trunk (www.BigDataTrunk.com), a Big Data Training and consulting firm with offices in the United States. He previously led the data warehouse/business intelligence and B...
"IBM is really all in on blockchain. We take a look at sort of the history of blockchain ledger technologies. It started out with bitcoin, Ethereum, and IBM evaluated these particular blockchain technologies and found they were anonymous and permissionless and that many companies were looking for permissioned blockchain," stated René Bostic, Technical VP of the IBM Cloud Unit in North America, in this SYS-CON.tv interview at 21st Cloud Expo, held Oct 31 – Nov 2, 2017, at the Santa Clara Conventi...
A strange thing is happening along the way to the Internet of Things, namely far too many devices to work with and manage. It has become clear that we'll need much higher efficiency user experiences that can allow us to more easily and scalably work with the thousands of devices that will soon be in each of our lives. Enter the conversational interface revolution, combining bots we can literally talk with, gesture to, and even direct with our thoughts, with embedded artificial intelligence, whic...
The need for greater agility and scalability necessitated the digital transformation in the form of following equation: monolithic to microservices to serverless architecture (FaaS). To keep up with the cut-throat competition, the organisations need to update their technology stack to make software development their differentiating factor. Thus microservices architecture emerged as a potential method to provide development teams with greater flexibility and other advantages, such as the abili...
Product connectivity goes hand and hand these days with increased use of personal data. New IoT devices are becoming more personalized than ever before. In his session at 22nd Cloud Expo | DXWorld Expo, Nicolas Fierro, CEO of MIMIR Blockchain Solutions, will discuss how in order to protect your data and privacy, IoT applications need to embrace Blockchain technology for a new level of product security never before seen - or needed.
Leading companies, from the Global Fortune 500 to the smallest companies, are adopting hybrid cloud as the path to business advantage. Hybrid cloud depends on cloud services and on-premises infrastructure working in unison. Successful implementations require new levels of data mobility, enabled by an automated and seamless flow across on-premises and cloud resources. In his general session at 21st Cloud Expo, Greg Tevis, an IBM Storage Software Technical Strategist and Customer Solution Architec...
The use of containers by developers -- and now increasingly IT operators -- has grown from infatuation to deep and abiding love. But as with any long-term affair, the honeymoon soon leads to needing to live well together ... and maybe even getting some relationship help along the way. And so it goes with container orchestration and automation solutions, which are rapidly emerging as the means to maintain the bliss between rapid container adoption and broad container use among multiple cloud host...
Blockchain is a shared, secure record of exchange that establishes trust, accountability and transparency across business networks. Supported by the Linux Foundation's open source, open-standards based Hyperledger Project, Blockchain has the potential to improve regulatory compliance, reduce cost as well as advance trade. Are you curious about how Blockchain is built for business? In her session at 21st Cloud Expo, René Bostic, Technical VP of the IBM Cloud Unit in North America, discussed the b...
Imagine if you will, a retail floor so densely packed with sensors that they can pick up the movements of insects scurrying across a store aisle. Or a component of a piece of factory equipment so well-instrumented that its digital twin provides resolution down to the micrometer.
While some developers care passionately about how data centers and clouds are architected, for most, it is only the end result that matters. To the majority of companies, technology exists to solve a business problem, and only delivers value when it is solving that problem. 2017 brings the mainstream adoption of containers for production workloads. In his session at 21st Cloud Expo, Ben McCormack, VP of Operations at Evernote, discussed how data centers of the future will be managed, how the p...
As DevOps methodologies expand their reach across the enterprise, organizations face the daunting challenge of adapting related cloud strategies to ensure optimal alignment, from managing complexity to ensuring proper governance. How can culture, automation, legacy apps and even budget be reexamined to enable this ongoing shift within the modern software factory? In her Day 2 Keynote at @DevOpsSummit at 21st Cloud Expo, Aruna Ravichandran, VP, DevOps Solutions Marketing, CA Technologies, was jo...
"Since we launched LinuxONE we learned a lot from our customers. More than anything what they responded to were some very unique security capabilities that we have," explained Mark Figley, Director of LinuxONE Offerings at IBM, in this SYS-CON.tv interview at 21st Cloud Expo, held Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA.
When shopping for a new data processing platform for IoT solutions, many development teams want to be able to test-drive options before making a choice. Yet when evaluating an IoT solution, it’s simply not feasible to do so at scale with physical devices. Building a sensor simulator is the next best choice; however, generating a realistic simulation at very high TPS with ease of configurability is a formidable challenge. When dealing with multiple application or transport protocols, you would be...
Nordstrom is transforming the way that they do business and the cloud is the key to enabling speed and hyper personalized customer experiences. In his session at 21st Cloud Expo, Ken Schow, VP of Engineering at Nordstrom, discussed some of the key learnings and common pitfalls of large enterprises moving to the cloud. This includes strategies around choosing a cloud provider(s), architecture, and lessons learned. In addition, he covered some of the best practices for structured team migration an...
Smart cities have the potential to change our lives at so many levels for citizens: less pollution, reduced parking obstacles, better health, education and more energy savings. Real-time data streaming and the Internet of Things (IoT) possess the power to turn this vision into a reality. However, most organizations today are building their data infrastructure to focus solely on addressing immediate business needs vs. a platform capable of quickly adapting emerging technologies to address future ...