|By Jyoti Bansal||
|March 25, 2014 10:00 AM EDT||
Just in case you haven’t heard, Waterfall is out and Agile is in. For organizations that thrive on innovation, successful agile development and continuous deployment processes are paramount to reducing go to market time, fast tracking product enhancements and quickly resolving defects.
Executed successfully, with the right team in place, Agile practices should result in higher functional product quality. Operating in small, focused teams that work well-defined sprints with clearly groomed stories is ideal for early QA involvement, parallel test planning and execution.
But how do you manage non-functional performance quality in an Agile model? The reality is that traditional performance engineering, and testing, is often best performed over longer periods of time; workload characterizations, capacity planning, script development, test user creation, test data development, multi-day soak tests and more… are not always easily adaptable into 2-week, or shorter, sprints. And the high-velocity of development change often cause continuous, and sometimes large, ripples that disrupt a team’s ability to keep up with these activities; anyone ever had a data model change break their test dataset?
Before joining AppDynamics I faced this exact scenario as the Lead Performance Engineer for PayPal’s Java Middleware team. PayPal was undergoing an Agile transformation and our small team of historically matrix aligned, specialty engineers, was challenged to adapt.
Here are my best practices and lessons learned, sometimes the hard way, of how to adapt performance-engineering practices into an agile development model:
- Fully integrate yourself into the Sprint team, immediately. My first big success at PayPal was the day I had my desk moved to sit in the middle of the Dev team. I joined the water cooler talk, attended every standup, shot nerf missiles across the room, wrote and groomed stories as a core part of the scrum team. Performance awareness, practices, and results organically increased because it was a well represented function within the team as opposed to an after thought farmed out to a remote organization.
- Build multiple performance and stress test scenarios with distinct goals and execution schedules. Plan for longer soak and stress tests as part of the release process, but have one or more per-sprint, and even nightly, performance tests that can be continually executed to proactively measure performance, and identify defects as they are introduced. Consider it your mission to quantify the performance impact of a code change.
- Extend your Continuous Integration (CI) pipelines to include performance testing. At PayPal, I built custom integrations between Jenkins and JMeter to automate test execution and report generation. Our pipelines triggered automated nightly regressions on development branches and within a well-understood platform where QA and development could parameterize workload, kick-off a performance test and interpret a test report. Unless you like working 18-hour days, I can’t overstate the importance of building integrations into tools that are already or easily adopted by the broader team. If you’re using Jenkins, you might take a look at the Jenkins Performance Plugin.
- Define Key Performance Indicators (KPIs). In an Agile model you should expect smaller scoped tests, executed at a higher frequency. It’s critical to have a set of KPIs the group understands, and buys into, so you can quickly look at a test and interpret if a) things look good, or b) something funky happened and additional investigation is needed. Some organizations have clearly defined non-functional criteria, or SLAs, and many don’t. Be Agile with your KPIs, and refine them over time. Here are some of the KPIs we commonly evaluated:
- Percentile Response-Time - 90th, 95th, 99th - Summary and Per-Transaction
- Throughput – Summary and Per-Transaction
- Garbage Collector (GC) Performance - % non-paused time, number of collections (major and minor), and collection times.
- Heap Utilization – Young Generation and Tenured Space
- Resource Pools – Connection Pools and Thread Pools
5. Invest in best of breed tooling. With higher velocity code change and release schedules, it’s essential to have deep visibility into your performance environment. Embrace tooling, but consider these factors impacted by Agile development:
- Can your toolset automatically, and continuously discover, map and diagnose failures in a distributed system without asking you to configure what methods should be monitored? In an Agile team the code base is constantly shifting. If you have to configure method-level monitoring, you’ll spend significant time maintaining tooling, rather than solving problems.
- Can the solution be enabled out of the box under heavy loads? If the overhead of your tooling degrades performance under high loads, it’s ineffective in a performance environment. Don’t let your performance monitoring become your performance problem.
When a vendor recommends you reduce monitoring coverage to support load testing, consider a) the effectiveness of a tool which won’t provide 100% visibility, and b) how much time will be spent consistently reconfiguring monitoring for optimal overhead.
Performance testing within an Agile organization challenges us as engineers to adapt to a high velocity of change. Applying best practices gives us the opportunity to work as part of the development team to proactively identify and diagnose performance defects as code changes are introduced. Because the fastest way to resolve a defect in production is to fix it before it gets there.
Take five minutes to get complete visibility into the performance of your production applications with AppDynamics today.
The post Agile Performance Testing – Proactively Managing Performance written by Steve Sturtevant appeared first on Application Performance Monitoring Blog from AppDynamics.
910Telecom exhibited at the 19th International Cloud Expo, which took place at the Santa Clara Convention Center in Santa Clara, CA, in November 2016. Housed in the classic Denver Gas & Electric Building, 910 15th St., 910Telecom is a carrier-neutral telecom hotel located in the heart of Denver. Adjacent to CenturyLink, AT&T, and Denver Main, 910Telecom offers connectivity to all major carriers, Internet service providers, Internet backbones and exchanges.
Feb. 27, 2017 03:30 AM EST Reads: 2,152
Why do your mobile transformations need to happen today? Mobile is the strategy that enterprise transformation centers on to drive customer engagement. In his general session at @ThingsExpo, Roger Woods, Director, Mobile Product & Strategy – Adobe Marketing Cloud, covered key IoT and mobile trends that are forcing mobile transformation, key components of a solid mobile strategy and explored how brands are effectively driving mobile change throughout the enterprise.
Feb. 27, 2017 02:00 AM EST Reads: 7,515
As businesses adopt functionalities in cloud computing, it’s imperative that IT operations consistently ensure cloud systems work correctly – all of the time, and to their best capabilities. In his session at @BigDataExpo, Bernd Harzog, CEO and founder of OpsDataStore, will present an industry answer to the common question, “Are you running IT operations as efficiently and as cost effectively as you need to?” He will expound on the industry issues he frequently came up against as an analyst, and...
Feb. 27, 2017 01:00 AM EST Reads: 2,093
Who are you? How do you introduce yourself? Do you use a name, or do you greet a friend by the last four digits of his social security number? Assuming you don’t, why are we content to associate our identity with 10 random digits assigned by our phone company? Identity is an issue that affects everyone, but as individuals we don’t spend a lot of time thinking about it. In his session at @ThingsExpo, Ben Klang, Founder & President of Mojo Lingo, discussed the impact of technology on identity. Sho...
Feb. 26, 2017 11:45 PM EST Reads: 6,249
The explosion of new web/cloud/IoT-based applications and the data they generate are transforming our world right before our eyes. In this rush to adopt these new technologies, organizations are often ignoring fundamental questions concerning who owns the data and failing to ask for permission to conduct invasive surveillance of their customers. Organizations that are not transparent about how their systems gather data telemetry without offering shared data ownership risk product rejection, regu...
Feb. 26, 2017 11:45 PM EST Reads: 2,145
SYS-CON Media announced today that @WebRTCSummit Blog, the largest WebRTC resource in the world, has been launched. @WebRTCSummit Blog 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. @WebRTCSummit Blog can be bookmarked ▸ Here @WebRTCSummit conference site can be bookmarked ▸ Here
Feb. 26, 2017 10:00 PM EST Reads: 13,752
SYS-CON Events announced today that CA Technologies has been named "Platinum Sponsor" of SYS-CON's 20th International Cloud Expo®, which will take place on June 6-8, 2017, at the Javits Center in New York City, New York, and 21st International Cloud Expo, which will take place in November in Silicon Valley, California.
Feb. 26, 2017 09:15 PM EST Reads: 2,526
You think you know what’s in your data. But do you? Most organizations are now aware of the business intelligence represented by their data. Data science stands to take this to a level you never thought of – literally. The techniques of data science, when used with the capabilities of Big Data technologies, can make connections you had not yet imagined, helping you discover new insights and ask new questions of your data. In his session at @ThingsExpo, Sarbjit Sarkaria, data science team lead ...
Feb. 26, 2017 09:00 PM EST Reads: 9,036
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...
Feb. 26, 2017 08:45 PM EST Reads: 5,233
In his keynote at @ThingsExpo, Chris Matthieu, Director of IoT Engineering at Citrix and co-founder and CTO of Octoblu, focused on building an IoT platform and company. He provided a behind-the-scenes look at Octoblu’s platform, business, and pivots along the way (including the Citrix acquisition of Octoblu).
Feb. 26, 2017 08:45 PM EST Reads: 2,070
WebRTC is about the data channel as much as about video and audio conferencing. However, basically all commercial WebRTC applications have been built with a focus on audio and video. The handling of “data” has been limited to text chat and file download – all other data sharing seems to end with screensharing. What is holding back a more intensive use of peer-to-peer data? In her session at @ThingsExpo, Dr Silvia Pfeiffer, WebRTC Applications Team Lead at National ICT Australia, looked at differ...
Feb. 26, 2017 08:30 PM EST Reads: 7,245
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.
Feb. 26, 2017 08:30 PM EST Reads: 830
With major technology companies and startups seriously embracing IoT strategies, now is the perfect time to attend @ThingsExpo 2016 in New York. Learn what is going on, contribute to the discussions, and ensure that your enterprise is as "IoT-Ready" as it can be! Internet of @ThingsExpo, taking place June 6-8, 2017, at the Javits Center in New York City, New York, is co-located with 20th Cloud Expo and will feature technical sessions from a rock star conference faculty and the leading industry p...
Feb. 26, 2017 07:45 PM EST Reads: 2,141
The Internet of Things can drive efficiency for airlines and airports. In their session at @ThingsExpo, Shyam Varan Nath, Principal Architect with GE, and Sudip Majumder, senior director of development at Oracle, discussed the technical details of the connected airline baggage and related social media solutions. These IoT applications will enhance travelers' journey experience and drive efficiency for the airlines and the airports.
Feb. 26, 2017 06:45 PM EST Reads: 2,443
In 2014, Amazon announced a new form of compute called Lambda. We didn't know it at the time, but this represented a fundamental shift in what we expect from cloud computing. Now, all of the major cloud computing vendors want to take part in this disruptive technology. In his session at 20th Cloud Expo, John Jelinek IV, a web developer at Linux Academy, will discuss why major players like AWS, Microsoft Azure, IBM Bluemix, and Google Cloud Platform are all trying to sidestep VMs and containers...
Feb. 26, 2017 05:30 PM EST Reads: 2,322
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...
Feb. 26, 2017 05:15 PM EST Reads: 1,997
SYS-CON Events announced today that CA Technologies has been named “Platinum Sponsor” of SYS-CON's 20th International Cloud Expo®, which will take place on June 6-8, 2017, at the Javits Center in New York City, NY, and the 21st International Cloud Expo®, which will take place October 31-November 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. CA Technologies helps customers succeed in a future where every business – from apparel to energy – is being rewritten by software. From ...
Feb. 26, 2017 03:45 PM EST Reads: 2,756
With 10 simultaneous tracks, keynotes, general sessions and targeted breakout classes, Cloud Expo and @ThingsExpo are two of the most important technology events of the year. Since its launch over eight years ago, Cloud Expo and @ThingsExpo have presented a rock star faculty as well as showcased hundreds of sponsors and exhibitors! In this blog post, I provide 7 tips on how, as part of our world-class faculty, you can deliver one of the most popular sessions at our events. But before reading the...
Feb. 26, 2017 03:30 PM EST Reads: 9,033
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.
Feb. 26, 2017 02:30 PM EST Reads: 2,526
"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.
Feb. 26, 2017 02:30 PM EST Reads: 7,206