PurePerformance

Are there new Web Performance Rules since Steve Souders started the WPO movement about 10 years ago? Do we still optimize on round trips or does HTTP/2 change the game? How do we deal with “mobile only” users we find in emerging geographies. How does Google itself optimize its search pages and what can we learn from it. In this session we really got to cover a lot of the presentation Pat Meenan (@...

Pat Meenan (@patmeenan) is a veteran when it comes to Web Performance Optimization. Besides being the creator of WebPageTest.org he has also done a lot of work recently on the Google Chrome team to make the browser better and faster. During his recent Velocity presentation on “Using Machine Learning to determine drivers for bounce and conversion” he presented some very controversial findings about...

Adam Auerbach (@Bugman31) has helped Capital One transform their development and testing practices into the Digital Delivery Age. Practicing ATDD and DevOps allows them to deploy high quality software continuously. One of their challenges has been the rather slow performance testing stage in their pipeline. Breaking up performance test into smaller units, using Docker to allow development to run c...

Do you speak SQL? Do you know what an Execution Plan is? Are you aware that large amounts of unique queries will impact Database Server CPU and also efficiency of the Execution Plan and Data Cache? These are all learnings from this episode where Sonja Chevre (@SonjaChevre) and Harald Zeitlhofer (@HZeitlhofer) – both database experts at Dynatrace – pointed out database performance hotspots and opti...

Are you still exporting load testing reports into Excel compare different runs manually? Matt Eisengruber – Guardian at Dynatrace – walks us through the life-changing transformation story of one of his former clients who used to spend an entire business day analyzing LoadRunner results. Through automation, they managed to get her the results when she walks into the office in the morning – giving h...

Alois Reitbauer (@AloisReitbauer) guest hosts - Mike Jones ( http://bit.ly/mjlnk ) takes us on a journey how the team moved a monolithic application that was built by a remote team to a micro service architecture. Learn how the manage a couple of million lines of code with only 5 people while improving performance and availability. Mike also shares lessons learned on their journey and shares strat...

Scott Stocker (@sestocker), Solution Architect at Perficient, tells us the background of a recent load testing engagement on an ASP.NET App running on SiteCore. Turns out that even these apps on the popular Microsoft platform suffer from the same architectural and implementation patterns as we see everywhere else. Bypassing the caching layer through FastQuery resulted in excessive SQL, which cause...

The initial idea of the Cloud has long become commodity – which is IaaS. Containers are the current hype but still require you to take care of correctly configuring your container that will run your code. Mike Villiger (@mikevilliger) – a veteran and active member of the cloud community – explains why it is really PaaS that should be on top of your list. And why monitoring performance, architectur...

In Part II, Richard Dominguez, Developer in Operations at PrepSportswear, is explaining the significance of understanding and dealing with bot and spider traffic on their eCommerce site. He explains why they route search bot traffic to dedicated servers, how to better serve good bots and how to block the bad ones. Most importantly: we learn about a lot of metrics he is providing for the DevOps but...

Have you ever wondered how to argue with a marketeer about not releasing a new feature or running this campaign? Or in the contrary: how can you show a marketeer that performance engineering and monitoring is as critical to the success of a campaign as the marketing campaign itself? Richard Dominguez, Developer in Operations at PrepSportswear, is enlightening us about how his DevOps team is cooper...

Microsoft is doing a good job in shielding the complexity of what is going on in the CLR from us. Until now Microsoft is taking care to optimize the Garbage Collector and tries to come up with good defaults when it comes to thread and connection pool sizes. The problem though is that even the best optimizations from Microsoft are not good enough if your application suffers from poor architectural...

The Java Runtime has become so fast that it shouldn’t be the first one to blame when looking at performance problems. We agree: the runtime is great, JIT and garbage collection are amazing. But bad code on a fast runtime is still bad code. And it is not only your code but the 80-90% of code that you do not control such as Hibernate, Spring, App-Server specific implementations or the Java Core Libr...

How can you performance test an application when you get a new build with every code check-in? Is performance testing as we know it still relevant in a DevOps world or do we just monitor performance in production and fix things as we see problems come up? Continuous Delivery talks about breaking an application into smaller components that can be tested in isolation but also deployed independently....

Have you ever wondered what other people mean when they talk about a performance or load or stress test? What about a penetration test? There are many definitions floating around and things sometimes get confused. Listen to this podcast and let us clarify for you by giving you our opinion on the different types of tests that are necessary when testing an application. In the end you can make up you...

If you are running load tests it is not enough to just look at response time and throughput. As a performance engineer you also have to look at key components that impact performance: CPU, Memory, Network and Disk Utilization should be obvious. Connection Pools (Database, Web Service), Thread Pools and Message Queues have to be part of monitoring as well. On top of that you want to understand how...