|By AppDynamics Blog||
|May 8, 2014 12:00 PM EDT||
I wouldn’t do website load/performance testing any more without having an APM tool in place. Period. Full stop. End of story.
I’ve been involved in website load testing for over 10 years, as a “end-user” when I was web operations manager for an online job board, as a team leader for a company providing cloud load testing services, and as a consultant on web performance with my own company DevOpsGuys. The difference in the value you get from load/performance testing with and without APM tools is enormous.
We’ve probably all seen those testing reports that are full of graphs of response time versus req/sec, CPU utilisation curves, disk IO throughput, error rates ad nauseam. I, to my eternal shame, have even written them… and whilst they are useful for answering the (very simplistic) question of “how many simulated requests/users can my website support before it falls over?” generating any real application insight from what are essentially infrastructure metrics is difficult. This type of test report rarely results in any corrective actions other than (1) “lets throw more hardware at it” or (2) “let’s shout at the devs that they have to fix something because the application is slow”. Quite often the report gets circular filed because no-one knows how to derive application insight and hence generate meaningful corrective actions at either the code, application stack configuration or infrastructure level. All that effort & expense is wasted.
So how are things different when using APM tools (like my preferred tool, AppDynamics)? Here are my top 4 reasons:
1. See the Big Picture (Systems Thinking)
“Systems thinking is a framework for seeing interrelationships rather than things, for seeing patterns rather than static snapshots.” - Peter Senge, “The Fifth Discipline”.
The “first way of DevOps” is systems thinking, and APM tools reinforce the systems thinking perspective by helping you see the big picture very clearly. You can see the interrelationships between the web tier, application tier, database servers, message queues, external cloud services etc. in real time while you’re testing rather than being focussed on the metrics for each tier individually. You can instantly see where the bottlenecks in your application are in the example below the 4306ms calls to Navision stand out!
2. Drill Down to the Code Level
One of my favourite things when load testing with APM tools is being able to drill down to the stack trace level and identify the calls that are the most problematic. Suddenly, instead of talking about infrastructure metrics like CPU, RAM and Disk we are talking about application metrics — this business transaction (e.g. web page or API request) generates this flow across the application and 75% of the time is spent in this method call which makes 3 database calls and 2 web service calls and its this database call that’s slow and here’s the exact SQL statement that was executed. The difference in the response you get from the developer’s when you give them this level of detail compared to “your application is slow when we hit 200 users” is fantastic — now you are giving them real, pinpoint actionable intelligence on how their application responds under load.
3. Iterate Faster
“the application was made 56x faster during a 12hr testing window”
Because you can move quickly to the code level in real-time while you test and because this facilitates better communication with the development team your load testing suddenly becomes a lot more collaborative, even if the load testing is being performed by an external 3rd party.
We generally have all the relevant parties on a conference call or HipChat chat session while we test and we are constantly exchanging information, screenshots, links to APM snapshots and the developers are often able to code fixes there and then because we can rapidly pinpoint the pain points.
If you’ve got a customer with an Agile mindset and continuous delivery capability it can enable you to do rapid test and fix cycles during testing, often multiple times times in a day. In one notable example, the application was made 56x faster during a 12hr testing window due to 4 application releases during that period.
4. Stop the “Blame Game”
“make the enemy poor performance, not each other…”
Traditionally in the old school (pre-APM tools) days, load tests were often conducted by external load testing consultancies who would come in, do the testing, and then deliver some big report on how things went.
The customer would assemble their team together in a conference room to go through the report, which often triggered the “blame game” – Ops blaming Dev, Dev blaming QA, QA blaming Ops, Ops blaming the hosting provider, the hosting provider blaming the customer’s code and around and around it would go.
But with the right APM tools in place we’ve found this negative team dynamic can be avoided.
As mentioned earlier, testing tends to become more collaborative because it’s easier to share the performance data in real time via the APM tool, and discussions become more evidence-based. It’s more about “what are we going to do about this problem we can see here in the APM tool” and less about trying to allocate blame when no-one really knows where the problem actually resides and they don’t want to be left holding the can. The system-thinking, holistic view of the application’s performance promulgated by the APM tool makes performance the enemy, not each other. And that means that the performance issues are likely to be fixed faster, and not ignored due to politics and infighting.
There are probably loads more reasons you can come up with for why load testing with APM tools are awesome (and I’d love you hear your thoughts in the comments), but I will leave you with one more bonus reason – because it’s fun. For me, using AppDynamics when I’m doing load testing and performance tuning has really bought the fun factor back into the work. It’s fun to see the load being applied to the system and to see (via AppDynamics) the effect across the entire application. It’s fun to work closer with the Dev & Ops teams (dare I say, “DevOps”!) and to share meaningful, actionable insights on where the problems lie, and it’s fun be able to rapidly iterate and show the performance improvements in real-time.
The post 4 Reasons Why You Should Use APM When You Load Test Your Website written by Steve Thair (DevOpsGuys) appeared first on Application Performance Monitoring Blog from AppDynamics.
SYS-CON Events has announced today that Roger Strukhoff has been named conference chair of Cloud Expo and @ThingsExpo 2016 Silicon Valley. The 19th Cloud Expo and 6th @ThingsExpo will take place on November 1-3, 2016, at the Santa Clara Convention Center in Santa Clara, CA. "The Internet of Things brings trillions of dollars of opportunity to developers and enterprise IT, no matter how you measure it," stated Roger Strukhoff. "More importantly, it leverages the power of devices and the Internet to enable us all to improve the state of the world and lives of people."
Jul. 26, 2016 05:15 AM EDT Reads: 2,082
"We host and fully manage cloud data services, whether we store, the data, move the data, or run analytics on the data," stated Kamal Shannak, Senior Development Manager, Cloud Data Services, IBM, in this SYS-CON.tv interview at 18th Cloud Expo, held June 7-9, 2016, at the Javits Center in New York City, NY.
Jul. 26, 2016 04:15 AM EDT Reads: 1,241
SYS-CON Events announced today that MangoApps 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. MangoApps provides modern company intranets and team collaboration software, allowing workers to stay connected and productive from anywhere in the world and from any device.
Jul. 26, 2016 01:45 AM EDT Reads: 1,318
DevOps at Cloud Expo – being held November 1-3, 2016, 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 world's largest enterprises – and delivering real results. Among the proven benefits, DevOps is correlated with 20% faster time-to-market, 22% improvement in qua...
Jul. 26, 2016 01:45 AM EDT Reads: 2,201
In today's uber-connected, consumer-centric, cloud-enabled, insights-driven, multi-device, global world, the focus of solutions has shifted from the product that is sold to the person who is buying the product or service. Enterprises have rebranded their business around the consumers of their products. The buyer is the person and the focus is not on the offering. The person is connected through multiple devices, wearables, at home, on the road, and in multiple locations, sometimes simultaneously. Products have rebranded from content management, asset management, CRM, social media, analytics .....
Jul. 26, 2016 12:45 AM EDT Reads: 665
“delaPlex Software provides software outsourcing services. We have a hybrid model where we have onshore developers and project managers that we can place anywhere in the U.S. or in Europe,” explained Manish Sachdeva, CEO at delaPlex Software, in this SYS-CON.tv interview at @ThingsExpo, held June 7-9, 2016, at the Javits Center in New York City, NY.
Jul. 26, 2016 12:00 AM EDT Reads: 1,547
Keeping pace with advancements in software delivery processes and tooling is taxing even for the most proficient organizations. Point tools, platforms, open source and the increasing adoption of private and public cloud services requires strong engineering rigor – all in the face of developer demands to use the tools of choice. As Agile has settled in as a mainstream practice, now DevOps has emerged as the next wave to improve software delivery speed and output. To make DevOps work, organizations must focus on what is most relevant to deliver value, reduce IT complexity, create more repeatable...
Jul. 26, 2016 12:00 AM EDT Reads: 2,157
SYS-CON Events announced today that Isomorphic Software will exhibit at DevOps Summit at 19th International Cloud Expo, which will take place on November 1–3, 2016, at the Santa Clara Convention Center in Santa Clara, CA. Isomorphic Software provides the SmartClient HTML5/AJAX platform, the most advanced technology for building rich, cutting-edge enterprise web applications for desktop and mobile. SmartClient combines the productivity and performance of traditional desktop software with the simplicity and reach of the open web.
Jul. 25, 2016 11:00 PM EDT Reads: 1,050
StackIQ has announced the release of Stacki 3.2. Stacki is an easy-to-use Linux server provisioning tool. Stacki 3.2 delivers new capabilities that simplify the automation and integration of site-specific requirements. StackIQ is the commercial entity behind this open source bare metal provisioning tool. Since the release of Stacki in June of 2015, the Stacki core team has been focused on making the Community Edition meet the needs of members of the community, adding features and value, while maintaining the StackIQ supported Pro and Enterprise editions. This release returns some focus to th...
Jul. 25, 2016 08:15 PM EDT Reads: 296
"We are a well-established player in the application life cycle management market and we also have a very strong version control product," stated Flint Brenton, CEO of CollabNet,, in this SYS-CON.tv interview at 18th Cloud Expo, held June 7-9, 2016, at the Javits Center in New York City, NY.
Jul. 25, 2016 07:15 PM EDT Reads: 1,811
In his session at @DevOpsSummit at 19th Cloud Expo, Yoseph Reuveni, Director of Software Engineering at Jet.com, will discuss Jet.com's journey into containerizing Microsoft-based technologies like C# and F# into Docker. He will talk about lessons learned and challenges faced, the Mono framework tryout and how they deployed everything into Azure cloud. Yoseph Reuveni is a technology leader with unique experience developing and running high throughput (over 1M tps) distributed systems with extremely low latency (under 10ms). He is working at Jet.com as a Director of Software Engineering leadi...
Jul. 25, 2016 07:15 PM EDT Reads: 2,115
"Operations is sort of the maturation of cloud utilization and the move to the cloud," explained Steve Anderson, Product Manager for BMC’s Cloud Lifecycle Management, in this SYS-CON.tv interview at 18th Cloud Expo, held June 7-9, 2016, at the Javits Center in New York City, NY.
Jul. 25, 2016 07:00 PM EDT Reads: 1,891
"delaPlex is a software development company. We do team-based outsourcing development," explained Mark Rivers, COO and Co-founder of delaPlex Software, in this SYS-CON.tv interview at 18th Cloud Expo, held June 7-9, 2016, at the Javits Center in New York City, NY.
Jul. 25, 2016 03:00 PM EDT Reads: 1,982
Is your aging software platform suffering from technical debt while the market changes and demands new solutions at a faster clip? It’s a bold move, but you might consider walking away from your core platform and starting fresh. ReadyTalk did exactly that. In his General Session at 19th Cloud Expo, Michael Chambliss, Head of Engineering at ReadyTalk, will discuss why and how ReadyTalk diverted from healthy revenue and over a decade of audio conferencing product development to start an innovative project that reflects shifts in cloud, dev tools, web standards, enterprise mobility and video. L...
Jul. 25, 2016 02:00 PM EDT Reads: 998
As companies gain momentum, the need to maintain high quality products can outstrip their development team’s bandwidth for QA. Building out a large QA team (whether in-house or outsourced) can slow down development and significantly increases costs. This eBook takes QA profiles from 5 companies who successfully scaled up production without building a large QA team and includes: What to consider when choosing CI/CD tools How culture and communication can make or break implementation
Jul. 25, 2016 11:00 AM EDT Reads: 1,612
"There's a growing demand from users for things to be faster. When you think about all the transactions or interactions users will have with your product and everything that is between those transactions and interactions - what drives us at Catchpoint Systems is the idea to measure that and to analyze it," explained Leo Vasiliou, Director of Web Performance Engineering at Catchpoint Systems, in this SYS-CON.tv interview at 18th Cloud Expo, held June 7-9, 2016, at the Javits Center in New York City, NY.
Jul. 25, 2016 10:30 AM EDT Reads: 1,977
"We're bringing out a new application monitoring system to the DevOps space. It manages large enterprise applications that are distributed throughout a node in many enterprises and we manage them as one collective," explained Kevin Barnes, President of eCube Systems, in this SYS-CON.tv interview at DevOps at 18th Cloud Expo, held June 7-9, 2016, at the Javits Center in New York City, NY.
Jul. 25, 2016 09:45 AM EDT Reads: 1,705
SYS-CON Events announced today that LeaseWeb USA, a cloud Infrastructure-as-a-Service (IaaS) provider, 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. LeaseWeb is one of the world's largest hosting brands. The company helps customers define, develop and deploy IT infrastructure tailored to their exact business needs, by combining various kinds cloud solutions.
Jul. 25, 2016 09:45 AM EDT Reads: 1,159
Adding public cloud resources to an existing application can be a daunting process. The tools that you currently use to manage the software and hardware outside the cloud aren’t always the best tools to efficiently grow into the cloud. All of the major configuration management tools have cloud orchestration plugins that can be leveraged, but there are also cloud-native tools that can dramatically improve the efficiency of managing your application lifecycle. In his session at 18th Cloud Expo, Alex Lovell-Troy, Director of Solutions Engineering at Pythian, presented a roadmap that can be leve...
Jul. 25, 2016 09:30 AM EDT Reads: 957
The cloud market growth today is largely in public clouds. While there is a lot of spend in IT departments in virtualization, these aren’t yet translating into a true “cloud” experience within the enterprise. What is stopping the growth of the “private cloud” market? In his general session at 18th Cloud Expo, Nara Rajagopalan, CEO of Accelerite, explored the challenges in deploying, managing, and getting adoption for a private cloud within an enterprise. What are the key differences between what is available in the public cloud and the early private clouds?
Jul. 25, 2016 09:15 AM EDT Reads: 2,037
SYS-CON Events announced today that Venafi, the Immune System for the Internet™ and the leading provider of Next Generation Trust Protection, will exhibit at @DevOpsSummit at 19th International Cloud Expo, which will take place on November 1–3, 2016, at the Santa Clara Convention Center in Santa Clara, CA. Venafi is the Immune System for the Internet™ that protects the foundation of all cybersecurity – cryptographic keys and digital certificates – so they can’t be misused by bad guys in attacks. In today’s connected world, cybercriminals want to gain trusted status and remain undetected, whic...
Jul. 25, 2016 08:30 AM EDT Reads: 1,303
Redis is not only the fastest database, but it is the most popular among the new wave of databases running in containers. Redis speeds up just about every data interaction between your users or operational systems. In his session at 19th Cloud Expo, Dave Nielsen, Developer Advocate, Redis Labs, will share the functions and data structures used to solve everyday use cases that are driving Redis' popularity.
Jul. 25, 2016 08:30 AM EDT Reads: 1,570
Ovum, a leading technology analyst firm, has published an in-depth report, Ovum Decision Matrix: Selecting a DevOps Release Management Solution, 2016–17. The report focuses on the automation aspects of DevOps, Release Management and compares solutions from the leading vendors.
Jul. 25, 2016 08:00 AM EDT Reads: 1,682
SYS-CON Events announced today the Kubernetes and Google Container Engine Workshop, being held November 3, 2016, in conjunction with @DevOpsSummit at 19th Cloud Expo at the Santa Clara Convention Center in Santa Clara, CA. This workshop led by Sebastian Scheele introduces participants to Kubernetes and Google Container Engine (GKE). Through a combination of instructor-led presentations, demonstrations, and hands-on labs, students learn the key concepts and practices for deploying and maintaining applications using Kubernetes.
Jul. 25, 2016 08:00 AM EDT Reads: 738
"My role is working with customers, helping them go through this digital transformation. I spend a lot of time talking to banks, big industries, manufacturers working through how they are integrating and transforming their IT platforms and moving them forward," explained William Morrish, General Manager Product Sales at Interoute, in this SYS-CON.tv interview at 18th Cloud Expo, held June 7-9, 2016, at the Javits Center in New York City, NY.
Jul. 24, 2016 07:30 PM EDT Reads: 2,080