Monitor. Resolve. Prevent.

Alois Reitbauer

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Top Stories by Alois Reitbauer

In an earlier article I already discussed several approaches towards end-user experience (or performance) monitoring including their pros and cons. In this article I will present a simple real world sample which shows the limits of performance traceability in AJAX applications. As I don’t like Hello World samples, I thought I’d rather build something a bit more useful. The sample uses the Twitter API to search for keywords. The search itself is triggered by typing into a textbox. While the sample isn’t spectacular from a technical perspective, I will make it more interesting by adding some “technical salt” – rather than sugar. Building the Sample Page So let us start looking at the code. Below you find the skeleton of our page. The code is straightforward. We have a textbox and a table. I am using jQuery for convenience reasons here – especially because of some innerH... (more)

Is There a Business Case for Application Performance?

We all know that slow performance – and service disruption even more – affects our business services and eventually our revenue. At the same time we say that major parts of companies are not willing to invest in performance. In this post I will discuss why we find ourselves in this paradox and how to escape it. Applications fail and management does not care dynaTrace recently conducted a study on performance management in large and small companies. The quick facts paint a horrible picture. 6o percent of the companies admit that they do not have any performance management processes... (more)

Web Performance Optimization Use Cases

Web Performance Optimization (WPO) constitutes of a set of activities targeted at improving the performance of web applications. First coined by Steve Souders WPO is developing into a growing industry. Every month new companies and projects offering web performance services emerge. WPO is much more than performance analysis; however, performance analysis is a central part in WPO activities as you must first have the data to decide what you are targeting and even more important to create a business case for web performance in your organization. Getting started with WPO is really e... (more)

A Step-by-Step Guide to dynaTrace AJAX Edition

  The dynaTrace AJAX Edition has been out there as an Alpha for a couple of weeks. It gave you the first impression what was to come. All the feedback we have received (like that from Steve Souders, and all that has come in via the contact form and the online forum) in that time made it possible to improve the tool from its early versions to its first "official" release version. In this article I'll discuss why dynaTrace Labs built the AJAX Edition, which problems it solves and how to use it in an example with Google maps. Why dynaTrace AJAX dition - and why for free? At dynaTrace... (more)

Myths and Truths About Performance Measurement Overhead

In this third article of my Performance Almanac I discuss the role of overhead in performance management. As a performance management solution provider we’re frequently asked “How much overhead does your solution have?” This question is however a bit more complex to answer than just giving a single number. When discussing this topic I have also realized that there are some dogmas on people’s minds which are not necessarily true. I collected the most common myths and truths about performance measurement overhead and will discuss them here. Truth: Performance Measurement Produces... (more)