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Analyzing JMeter Application Performance Results

JMeter is a very popular open source load testing tool with great flexibility thanks to its Java-based extension points. What it lacks is the ability to analyze the results in combination with metrics from your application and your ... More >

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Dynatrace Recorder Simplifies Synthetic Test Recording

The ability to record tests has always been possible with Dynatrace Synthetic, using a separate recording tool available from the portal. Now it’s even easier, with the new Dynatrace Recorder (in beta at this time). Building your tests are ... More >

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What is the expected response time to deliver good user experience?

A while ago I wrote about measuring user experience or customer experience by applying the User Experience Index as the metric to monitor in today's digital performance world. To obtain the right insight we must consider four key ... More >

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Analyzing out-of-memory exceptions caused by overly aggressive logging

As a performance architect I conduct many performance tests against Java Enterprise apps, analyzing performance, scalability and stability issues of the application under load. One of our recent tests was against an application that kept ... More >

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Four key elements of unified monitoring in the digital world

Enterprise organisations face mounting pressure to become more customer centric, agile, scalable and responsive. Compounding this is the fact that IT environments, faced with digital transformation, are changing rapidly and growing more ... More >

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Tomcat Performance Problems Part 3: Exceptions, Pools, Queues, Threads & Memory Leaks

In my first blog on Top Tomcat Performance Problems I focused on Database Access, Micro-Services Access and Bad Frameworks that impact your application performance and scalability running in your Java App Server. My second covered Bad ... More >

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Addressing PHP mysql_connect Performance Problem

My colleague Harald Zeitlhofer has blogged about this DNS Lookup problem in PHP mysql_connect before. But it keeps coming up in stories I hear from PHP applications that connect to a local MySQL instance. Therefore I thought it is time to ... More >

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Website performance in China: Uncovering our own problems

Delivering a successful website performance experience for an audience located inside China is a nightmare. It’s well documented that certain features and functions, like Twitter, Facebook, YouTube, and objects of Google, are blocked but ... More >