Showing posts of category: Patterns and Practices

One of my daily activities is checking interesting blog posts on various performance related topics. Today I stumbled across the blog 10 Cool Websites with Amazing jQuery Effects. I started looking at these pages which really have nice UI features implemented with jQuery. What many of these pages have in common is that they contain [...]

I had an interesting conversation with our Test Automation team lead Stefan – who Andi interviewed for our “Eating our own Dog Food ” article – on his experiences with the willingness of developers to write performance tests.
I asked a provocative question: do developers really want to write them in the first place? First he [...]

Visual Studio 2010 is almost here – Microsoft just released the first Release Candidate which looks pretty solid and good. Microsoft added new interfaces for performance management solutions like dynaTrace to extend the Web- and Load-Testing capabilities (check out Ed Glas’s blog on what’s in VSTS Load Testing) to go beyond .NET environments and deeper [...]

In Part I of this blog series I gave a general overview of BizTalk – the components that are involved in message processing and talked about how BizTalk specific performance counters can help spotting problematic areas. In this post we go beyond performance counters (even though we still need them) and take a deep-dive into [...]

Searching for memory leaks can easily become an adventure – fighting through a jungle of objects and references. When the leak occurs in production time is short and you have to act fast. Like in a treasure hunt, we have to interpret signs, unravel mysteries to finally find the “lost” memory.
Memory leaks – together with [...]

Zappos - the leading eCommerce site for shoes and apparel – recently talked about their best practices of delivering WOW Performance to their customers. Zappos re-architected their web-site and went from Perl to Enterprise Java as the need to scale and perform was driven by explosive business growth and performance problems in their old architecture.
Performance is the key [...]

Microsoft BizTalk enables companies to integrate and automate their business process (BPM). In a BizTalk environment messages are picked up by adapters and put through a robust message infrastructure where an orchestration engine allows you to implement your business processes. Along the way – a message takes – there are several points where performance of the overall [...]

Many Web Sites that use JavaScript frameworks to make the site more interactive and more appealing to the end user suffer from poor performance. Over the past couple of months I’ve been contacted by users of our FREE dynaTrace AJAX Edition asking me to help them analyze their problems. In doing so, I’ve developed a [...]

In this post I will address top ten reports and their usefulness in performance engineering. Regularly I hear people saying: “Can you show me the top ten database statements” or something similar. Their approach to performance engineering is to look at the slowest or most time-consuming statements and then make them faster. While this is [...]

Steve Souders wrote this in Best Practices for Speeding up Your Web Site regarding CSS Expressions:
“CSS expressions are a powerful (and dangerous) way to set CSS properties dynamically”
… and …
“The problem with expressions is that they are evaluated more frequently than most people expect”
Last week I worked with a user of the dynaTrace AJAX Edition. [...]