Click here to close now.

Welcome!

@CloudExpo Authors: Sanjeev Sharma, Liz McMillan, Pat Romanski, Plutora Blog, Carmen Gonzalez

Related Topics: Microservices Expo, Java IoT, Microsoft Cloud, IoT User Interface, 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
Containers are revolutionizing the way we deploy and maintain our infrastructures, but monitoring and troubleshooting in a containerized environment can still be painful and impractical. Understanding even basic resource usage is difficult – let alone tracking network connections or malicious activity. In his session at DevOps Summit, Gianluca Borello, Sr. Software Engineer at Sysdig, will cover the current state of the art for container monitoring and visibility, including pros / cons and liv...
In his session at 16th Cloud Expo, Simone Brunozzi, VP and Chief Technologist of Cloud Services at VMware, reviewed the changes that the cloud computing industry has gone through over the last five years and shared insights into what the next five will bring. He also chronicled the challenges enterprise companies are facing as they move to the public cloud. He delved into the "Hybrid Cloud" space and explained why every CIO should consider ‘hybrid cloud' as part of their future strategy to achie...
DevOps Summit, taking place Nov 3-5, 2015, at the Santa Clara Convention Center in Santa Clara, CA, is co-located with 17th 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 development...
"A lot of the enterprises that have been using our systems for many years are reaching out to the cloud - the public cloud, the private cloud and hybrid," stated Reuven Harrison, CTO and Co-Founder of Tufin, in this SYS-CON.tv interview at 16th Cloud Expo, held June 9-11, 2015, at the Javits Center in New York City.
The last decade was about virtual machines, but the next one is about containers. Containers enable a service to run on any host at any time. Traditional tools are starting to show cracks because they were not designed for this level of application portability. Now is the time to look at new ways to deploy and manage applications at scale. In his session at @DevOpsSummit, Brian “Redbeard” Harrington, a principal architect at CoreOS, will examine how CoreOS helps teams run in production. Attende...
The time is ripe for high speed resilient software defined storage solutions with unlimited scalability. ISS has been working with the leading open source projects and developed a commercial high performance solution that is able to grow forever without performance limitations. In his session at Cloud Expo, Alex Gorbachev, President of Intelligent Systems Services Inc., shared foundation principles of Ceph architecture, as well as the design to deliver this storage to traditional SAN storage co...
Internet of Things (IoT) will be a hybrid ecosystem of diverse devices and sensors collaborating with operational and enterprise systems to create the next big application. In their session at @ThingsExpo, Bramh Gupta, founder and CEO of robomq.io, and Fred Yatzeck, principal architect leading product development at robomq.io, discussed how choosing the right middleware and integration strategy from the get-go will enable IoT solution developers to adapt and grow with the industry, while at th...
In the midst of the widespread popularity and adoption of cloud computing, it seems like everything is being offered “as a Service” these days: Infrastructure? Check. Platform? You bet. Software? Absolutely. Toaster? It’s only a matter of time. With service providers positioning vastly differing offerings under a generic “cloud” umbrella, it’s all too easy to get confused about what’s actually being offered. In his session at 16th Cloud Expo, Kevin Hazard, Director of Digital Content for SoftL...
Live Webinar with 451 Research Analyst Peter Christy. Join us on Wednesday July 22, 2015, at 10 am PT / 1 pm ET In a world where users are on the Internet and the applications are in the cloud, how do you maintain your historic SLA with your users? Peter Christy, Research Director, Networks at 451 Research, will discuss this new network paradigm, one in which there is no LAN and no WAN, and discuss what users and network administrators gain and give up when migrating to the agile world of clo...
17th Cloud Expo, taking place Nov 3-5, 2015, at the Santa Clara Convention Center in Santa Clara, CA, 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. Meanwhile, 94% of enterprises ar...
SYS-CON Events announced today that Harbinger Systems will exhibit at SYS-CON's 17th International Cloud Expo®, which will take place on November 3–5, 2015, at the Santa Clara Convention Center in Santa Clara, CA. Harbinger Systems is a global company providing software technology services. Since 1990, Harbinger has developed a strong customer base worldwide. Its customers include software product companies ranging from hi-tech start-ups in Silicon Valley to leading product companies in the US a...
Agile, which started in the development organization, has gradually expanded into other areas downstream - namely IT and Operations. Teams – then teams of teams – have streamlined processes, improved feedback loops and driven a much faster pace into IT departments which have had profound effects on the entire organization. In his session at DevOps Summit, Anders Wallgren, Chief Technology Officer of Electric Cloud, will discuss how DevOps and Continuous Delivery have emerged to help connect dev...
"We help to transform an organization and their operations and make them more efficient, more agile, and more nimble to move into the cloud or to move between cloud providers and create an agnostic tool set," noted Jeremy Steinert, DevOps Services Practice Lead at WSM International, in this SYS-CON.tv interview at @DevOpsSummit, held June 9-11, 2015, at the Javits Center in New York City.
SYS-CON Events announced today that Secure Infrastructure & Services will exhibit at SYS-CON's 17th International Cloud Expo®, which will take place on November 3–5, 2015, at the Santa Clara Convention Center in Santa Clara, CA. Secure Infrastructure & Services (SIAS) is a managed services provider of cloud computing solutions for the IBM Power Systems market. The company helps mid-market firms built on IBM hardware platforms to deploy new levels of reliable and cost-effective computing and hig...
"AgilData is the next generation of dbShards. It just adds a whole bunch more functionality to improve the developer experience," noted Dan Lynn, CEO of AgilData, in this SYS-CON.tv interview at 16th Cloud Expo, held June 9-11, 2015, at the Javits Center in New York City.
"We have a tagline - "Power in the API Economy." What that means is everything that is built in applications and connected applications is done through APIs," explained Roberto Medrano, Executive Vice President at Akana, in this SYS-CON.tv interview at 16th Cloud Expo, held June 9-11, 2015, at the Javits Center in New York City.
The 17th International Cloud Expo has announced that its Call for Papers is open. 17th International Cloud Expo, to be held November 3-5, 2015, at the Santa Clara Convention Center in Santa Clara, CA, brings together Cloud Computing, APM, APIs, Microservices, Security, Big Data, Internet of Things, DevOps and WebRTC to one location. With cloud computing driving a higher percentage of enterprise IT budgets every year, it becomes increasingly important to plant your flag in this fast-expanding bu...
The 5th International DevOps Summit, co-located with 17th International Cloud Expo – being held November 3-5, 2015, at the Santa Clara Convention Center in Santa Clara, CA – announces that its Call for Papers is open. Born out of proven success in agile development, cloud computing, and process automation, DevOps is a macro trend you cannot afford to miss. From showcase success stories from early adopters and web-scale businesses, DevOps is expanding to organizations of all sizes, including the ...
"What Dyn is able to do with our Internet performance and our Internet intelligence is give companies visibility into what is actually going on in that cloud," noted Corey Hamilton, Product Marketing Manager at Dyn, in this SYS-CON.tv interview at 16th Cloud Expo, held June 9-11, 2015, at the Javits Center in New York City.
The basic integration architecture, as defined by ESBs, hasn’t changed for more than a decade. Most cloud integration providers still rely on an ESB architecture and their proprietary connectors. As a result, enterprise integration projects suffer from constraints of availability and reliability of these connectors that are not re-usable across other integration vendors. However, the rapid adoption of APIs and almost ubiquitous availability of APIs amongst most SaaS and Cloud applications are ra...