|By Tim Hinds||
|February 1, 2014 01:00 PM EST||
Agile software development isn't really a "new" trend anymore. I mean, the Agile Manifesto turns 13 years old next month and while that might be early adolescence in human years, it's downright ancient as far as trends in IT are concerned. However, one area that has yet to fully mature is the implementation of non-functional testing practices in a Continuous Testing sort of way that can keep pace with more Agile development teams. Load and performance testing definitely fall into that category. You might be a performance tester on a team that is just starting to do more iterative development or a more experienced Agile tester looking to add load and performance testing to your workflow; either way, you'll likely want to know what you're in for.
Agile development practices can help teams achieve faster time to market, adapt to changing requirements, provide a constant feedback loop, etc. The benefits of load and performance testing include determining how much load an application can handle before it crashes in production, when to add another server, when to reconfigure the network, where code needs to be optimized, etc. What is less well known is the fact that the combination of the two practices can lead to additional benefits that go beyond just the sum of the benefits of each practice, i.e. 1+1=3.
Some of these benefits include:
Avoiding Late Performance Problem Discovery
When load and performance testing are pushed off until the end of a development cycle, there is often little to no time for developers to make changes. This can cause teams to push back release dates and delay getting features out the door that customers need. Alternatively, if the issues are minor, teams may decide to proceed and launch the application into production while accepting the heightened risks. If the performance problems are more fundamental, they could even require painful architectural changes that could take weeks or months to implement.
Making Changes Earlier When They Are Cheaper
By including load and performance testing in Continuous Integration testing processes, organizations can catch performance issues early before they get much more costly to fix. Developers can instantly know that the new feature in the latest build has caused the application to no longer meet Service Level Agreements (SLAs). They can fix the problem then and there before it becomes exponentially more expensive. This is especially true on Agile teams when discovering a performance problem weeks later could mean that it actually occurred several builds ago which makes the task of pinpointing the root cause a nightmare.
Guaranteeing Users Get New Features, Not New Performance Issues
In some Agile organizations, changes are happening incredibly fast. It's possible for a new feature or some new functionality to get checked into source control, run through a Continuous Integration build, pass all of the automated tests, and get deployed to the production server in a matter of minutes. But if that code wasn't optimized to handle the number of simultaneous users seen at the worst peak times, it could cause the whole system to crash. Integrating load testing into the process before these changes are deployed to production can ensure that your users get all the goodies they want without the bad user experiences. This can save your company thousand or even millions in lost revenue from users switching to competitors' apps or bashing your brand because of the problems they experienced with your app.
In the same way that combining Agile with load testing can provide unique benefits, it can also present your teams with unique challenges they may not have experienced in the past.
Shorter Development Cycles Require More Tests in Less Time
Load and performance testing are usually pushed off until the end of a development cycle. With Agile, development, cycles are much shorter, and load & performance testing can get pushed off until the last day of a sprint or sometimes it's done every other sprint. This can often result in code being released without being adequately tested or user stories slipping to the next release once they have been tested. Conceptually the solution is to do the testing earlier in the development cycle, but that's easier said than done with many teams lacking the resources and tools to make it happen.
"Working" Code Does Not Always Perform Well
So much focus for developers on Agile teams is put on delivering "working" code, but is code really "working" if it fails when the application is under load? Should user stories and tasks really be marked as "done" if the code associated with them causes the application to crash with 100 users? What about 1,000? 100,000? The pressure to get code out the door is high, but so is the cost of having an application crash in production.
Developers Need Feedback NOW
Agile developers need to know more than just the fact that their code is causing performance issues: they need to know when their code started causing problems and what story they were working on when the issue started. It's a huge pain for developers to be forced to go back and fix code for a story they worked on weeks or months ago. It also means they can't spend time working on getting new features out the door. Detecting performance issues early in the cycle so you can deliver important feedback to developers quickly is crucial to saving costs.
Automating the Handoff from Dev to Ops Can Feel Risky
While DevOps and Continuous Deployment are still fairly young practices, the fear felt by operations teams that new changes in code will slow down or even crash the application when it is deployed in production has been around forever. Automating some of the testing in the Continuous Integration process can help to ease some of this fear, but without adequate performance testing included, the risk is still real. Ops teams know well the huge impact application downtime can have on the business.
As daunting as some of these challenges seem, don't lose sight of the benefits you'll receive. Load and performance testing successfully in an Agile way can save an organization a lot in costly bug fixes and could make a tester a hero to both development and operations teams alike.
Not quite sure how to get started? Stay tuned for my next blog on best practices for Agile load and performance testing.
SYS-CON Events announced today that Ciqada will exhibit at SYS-CON's @ThingsExpo, which will take place on June 9-11, 2015, at the Javits Center in New York City, NY. Ciqada™ makes it easy to connect your products to the Internet. By integrating key components - hardware, servers, dashboards, and mobile apps - into an easy-to-use, configurable system, your products can quickly and securely join the internet of things. With remote monitoring, control, and alert messaging capability, you will mee...
Apr. 27, 2015 04:00 PM EDT Reads: 1,934
SYS-CON Events announced today that Column Technologies, a global technology solutions company, will exhibit at SYS-CON's DevOps Summit 2015 New York, which will take place June 9-11, 2015, at the Javits Center in New York City, NY. Established in 1998, Column Technologies is a leader in application performance and infrastructure management for commercial and federal markets. The company is headquartered in the United States, with a diverse and talented team of more than 350 employees around th...
Apr. 27, 2015 04:00 PM EDT Reads: 1,807
Chuck Piluso will present a study of cloud adoption trends and the power and flexibility of IBM Power and Pureflex cloud solutions. Speaker Bio: Prior to Data Storage Corporation (DSC), Mr. Piluso founded North American Telecommunication Corporation, a facilities-based Competitive Local Exchange Carrier licensed by the Public Service Commission in 10 states, serving as the company's chairman and president from 1997 to 2000. Between 1990 and 1997, Mr. Piluso served as chairman & founder of ...
Apr. 27, 2015 03:00 PM EDT
Public Cloud IaaS started it's life in the developer and startup communities and has grown rapidly to a $20B+ industry, but it still pales in comparison to how much is spent worldwide on IT: $3.6 trillion. In fact, there are 8.6 million data centers worldwide, the reality is many small and medium sized business have server closets and colocation footprints filled with servers and storage gear. While on-premise environment virtualization may have peaked at 75%, the Public Cloud has lagged in ado...
Apr. 27, 2015 02:00 PM EDT Reads: 1,322
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...
Apr. 27, 2015 02:00 PM EDT Reads: 2,240
Dave will share his insights on how Internet of Things for Enterprises are transforming and making more productive and efficient operations and maintenance (O&M) procedures in the cleantech industry and beyond. Speaker Bio: Dave Landa is chief operating officer of Cybozu Corp (kintone US). Based in the San Francisco Bay Area, Dave has been on the forefront of the Cloud revolution driving strategic business development on the executive teams of multiple leading Software as a Services (SaaS) ap...
Apr. 27, 2015 02:00 PM EDT Reads: 1,579
79% of new products miss their launch date. That was the conclusion of a CGT/Sopheon Survey in which the impact of such market misses were also explored. What it didn't dig into was the reason why so many products and projects miss their launch date. When we start digging into the details with respect to applications, we can find at least one causal factor in the delivery process, specifically that portion which focuses on the actual move into production, from which consumers (internal and...
Apr. 27, 2015 01:45 PM EDT Reads: 949
Microsoft is releasing in the near future Azure Service Fabric as a preview beta. Azure Service Fabric is built to run microservices - a complex application consisting of smaller, interlocked components that enables updating components without disrupting service. Microsoft has used this over the past few years internally for many of its own applications and the new release is for general use, a new product. OSIsoft is an early adopter of this system and run with it to expand into the explo...
Apr. 27, 2015 01:00 PM EDT Reads: 1,297
ProfitBricks, the provider of painless cloud infrastructure IaaS, today released its SDK for Ruby, written against the company's new RESTful API. The new SDK joins ProfitBricks' previously announced support for the popular multi-cloud open-source Fog project. This new Ruby SDK, which exposes advanced functionality to take advantage of ProfitBricks' simplicity and productivity, aligns with ProfitBricks' mission to provide a painless way to automate infrastructure in the cloud. Ruby is a genera...
Apr. 27, 2015 01:00 PM EDT Reads: 1,085
This digest provides an overview of good resources that are well worth reading. We’ll be updating this page as new content becomes available, so I suggest you bookmark it. Also, expect more digests to come on different topics that make all of our IT-hearts go boom!
Apr. 27, 2015 01:00 PM EDT Reads: 1,011
One of the most frequently requested Rancher features, load balancers are used to distribute traffic between docker containers. Now Rancher users can configure, update and scale up an integrated load balancing service to meet their application needs, using either Rancher's UI or API. To implement our load balancing functionality we decided to use HAproxy, which is deployed as a contianer, and managed by the Rancher orchestration functionality. With Rancher's Load Balancing capability, users ...
Apr. 27, 2015 12:45 PM EDT Reads: 1,168
Modern Systems announced completion of a successful project with its new Rapid Program Modernization (eavRPMa"c) software. The eavRPMa"c technology architecturally transforms legacy applications, enabling faster feature development and reducing time-to-market for critical software updates. Working with Modern Systems, the University of California at Santa Barbara (UCSB) leveraged eavRPMa"c to transform its Student Information System from Software AG's Natural syntax to a modern application lev...
Apr. 27, 2015 12:15 PM EDT Reads: 1,785
ProfitBricks has launched its new DevOps Central and REST API, along with support for three multi-cloud libraries and a Python SDK. This, combined with its already existing SOAP API and its new RESTful API, moves ProfitBricks into a position to better serve the DevOps community and provide the ability to automate cloud infrastructure in a multi-cloud world. Following this momentum, ProfitBricks has also introduced several libraries that enable developers to use their favorite language to code ...
Apr. 27, 2015 12:00 PM EDT Reads: 1,708
ProfitBricks, the provider of painless cloud infrastructure IaaS, announced the launch of its new DevOps Central and REST API, along with support for three multi-cloud libraries and a Python SDK. This, combined with its already existing SOAP API and its new RESTful API, moves ProfitBricks into a position to better serve the DevOps community and provide the ability to automate cloud infrastructure in a multi-cloud world. Following this momentum, ProfitBricks is also today introducing several l...
Apr. 27, 2015 12:00 PM EDT Reads: 1,201
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...
Apr. 27, 2015 12:00 PM EDT Reads: 2,329
There is no quick way to learn Jython API but to experiment with it. The easiest way is to start with Jytutor extension for XL Deploy. Now you can also use the code snippet for exposing jython/python context in XL Deploy environment by running it directly in Jytutor Here’s how you can go ahead with that Download the Jytutor extension referring to the Jytutor Blog or from the following link https://github.com/xebialabs-community/xld-jytutor-plugin/releases Shutdown your XL Deploy server...
Apr. 27, 2015 12:00 PM EDT Reads: 889
Security is one the more prominent of the application service categories, likely due to its high profile impact. After all, if security fails, we all hear about it. The entire Internet. Forever. So when one conducts a survey on the state of application delivery (which is implemented using application services) you kinda have to include security. Which of course, we did.
Apr. 27, 2015 11:30 AM EDT Reads: 2,029
Containers and microservices have become topics of intense interest throughout the cloud developer and enterprise IT communities. Accordingly, attendees at the upcoming 16th Cloud Expo at the Javits Center in New York June 9-11 will find fresh new content in a new track called PaaS | Containers & Microservices Containers are not being considered for the first time by the cloud community, but a current era of re-consideration has pushed them to the top of the cloud agenda. With the launch ...
Apr. 27, 2015 11:00 AM EDT Reads: 2,892
The world's leading Cloud event, Cloud Expo has launched Microservices Journal on the SYS-CON.com portal, featuring over 19,000 original articles, news stories, features, and blog entries. DevOps Journal is focused on this critical enterprise IT topic in the world of cloud computing. Microservices Journal offers top articles, news stories, and blog posts from the world's well-known experts and guarantees better exposure for its authors than any other publication. Follow new article posts on T...
Apr. 27, 2015 11:00 AM EDT Reads: 2,117
Chef and Canonical announced a partnership to integrate and distribute Chef with Ubuntu. Canonical is integrating the Chef automation platform with Canonical's Machine-As-A-Service (MAAS), enabling users to automate the provisioning, configuration and deployment of bare metal compute resources in the data center. Canonical is packaging Chef 12 server in upcoming distributions of its Ubuntu open source operating system and will provide commercial support for Chef within its user base.
Apr. 27, 2015 11:00 AM EDT Reads: 1,870