Klaus Enzenhofer

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Top Stories by Klaus Enzenhofer

You don't agree with that? Have you ever looked at the details of your page load time and analyzed what really impacts Page Load Time? Let me show you with a real life example and let me explain that in most cases you only control 1/3 of the time required to load a page as the rest is consumed by third-party content that you do not have under control. Be Aware of Third-Party Content When analyzing web page load times we can use tools such as dynaTrace, Firebug or PageSpeed. The following two screenshots show timeline views from dynaTrace AJAX Edition. The timelines show all network downloads, rendering activities and JavaScript executions that happen when loading almost exactly the same page. The question is: Where does the huge difference come from? Timeline of web page with and without third-party content showing a difference of 8 seconds in total page load time ... (more)

Fact Finders: Sorting Out the Truth in Real User Monitoring

On my recent visits to Velocity, WebPerfDay and Apps World in London, Real User Monitoring (RUM) was the hot topic. That triggered my thinking about the differences between vendors. They all promise the same for a varying range of prices - from free to a couple thousand US dollars. What I found out is that there IS a big difference and - depending on what you want to do with RUM - you want to make sure you understand the capabilities and limitations of the available solutions. The false claim of 100% Coverage What all vendors claim to do is capture data from 100% of your users. Wh... (more)

Don’t Miss 50% of Your Paying Customers on Their Mobile Devices

"We expect that the revenue made via our mobile apps will cross the 50% mark within this year!" Most of our eCommerce customers are starting to say this to us. These customers have driven their businesses to the web and have successfully applied Real User Monitoring (RUM) for web. They have found and fixed many of the common performance problems described in Top 8 Performance Landmines, 5 Steps to improve eCommerce Performance and What if A/B Testing fails to improve conversions. As these customers start seeing an increase in revenue from mobile they have to extend their RUM cap... (more)

Case Study: Too Fast for the User

I just heard an interesting story from Runtastic, who is one of our Mobile Real User Monitoring customers. Runtastic's main mobile app allows their users to track their sport activities such as running, biking, hiking or skiing. They had a user complaining about too high speed. He didn't actually complain about the performance of the app but instead complained about his average speed during his workout as calculated by the app. After his one hour biking session, the app showed the he covered a distance of 490 km - that would probably be a world record and give him the yellow shir... (more)

How Real User Monitoring Saves Your Mainframe MIPS

Today I want to share a success story from one of our customers in the financial business that combined the currently hyped topic Real User Monitoring with the good old mainframe. They used Real User Monitoring to identify unnecessary calls from their rich client application into the mainframe and reduced useless data retrieved from the mainframe that ultimately saved them lots of money on MIPS. The customer's internal banking application consists of a Java Rich Client used by the bank clerks in the daily business with the customer. This Rich Client makes calls via the IBM CICS ... (more)