WebApp Performance Tuning

Defer the loading of 3rd party addons

thomas — Wed, 23 Feb 2011 10:40:16 +0000

I just discovered the informative blog-post “Optimize the Performance of Widgets, Buttons & More” on w3-edge.com.

It’s a well known problem that 3rd-party services included in a web page can become a performance bottleneck.

The article explains how to defer the loading of 3rd-party widgets (like google ads, social network plugins etc.) until after the HTML is

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W3C Launches Web Performance Interest Group

thomas — Thu, 17 Feb 2011 15:28:51 +0000

On the 8th of February, W3C announced the launch of a Web Performance Interest Group:

Today W3C launches a new Web Performance Interest Group, whose mission is to create a faster user experience on the Web. The Interest Group will produce use cases and requirements for future deliverables of the Web Performance Working

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52 interesting Blogposts on web application performance

thomas — Sat, 05 Feb 2011 11:22:59 +0000

On the Dynatrace Blog a nice summary of their web application performance blog posts has been posted: 52 weeks of Application Performance – The dynaTrace Almanac

Take a look, they cover a wide range of problems with examples, from frontend to backend over management themes:

We hope that there are topics for everybody. The articles range from

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Faster webpages with mod_pagespeed

thomas — Thu, 04 Nov 2010 21:30:54 +0000

Google announced mod_pagespeed, a module for Apache that changes the content to automatically follow a lot of well-known web application performance optimization guidelines. At the documentation, the available filters are explained in detail. Bonus: There’s also a section in the documentation about the potential risks of every filter.

Looks like an easy method to deliver old

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Better performance requirements

thomas — Thu, 30 Sep 2010 10:13:01 +0000

A task with performance engineering that’s often encountered is to define requirements for performance. This is a task that isn’t easy to accomplish, especially if you start from scratch. On the SearchSoftwareQuality-Blog, a helpful article has been posted: Seven quick tips for better performance requirements It sums up the basics to get you started. The headlines of

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Theory of performance tuning

thomas — Wed, 22 Sep 2010 21:57:21 +0000

I stumbled across a nice article at queue.acm.org titled “Thinking Clearly about Performance“. If you’re interested in some theory behind performance optimisation, this is a must read – although there’s a good chance you know some parts of it, if you’re interested in the theory behind .. you get it.

The article talks about response time vs

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Improving speed of https pages

thomas — Wed, 25 Aug 2010 22:10:02 +0000

When it comes to secure sites, it’s not easy to achieve a fast loading page.

There are a few points that really help:

Connections over HTTPS are more expensive compared to an uncompressed connection. So especially try to reduce the number of required connections. And assure keep-alive is active – even a very short time helps (it

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Why good web app performance rocks

thomas — Sat, 03 Jul 2010 10:11:37 +0000

In this article, Steve talks about the impacts (he has commulated some interesting numbers from other blogs) and recent trends in the web app performance industry.

He also references a video from a Fred Wilson (a NY tech investor) speech. Guess what: From the “10 Golden Principles of Successful Web Apps”, in his opinion performance

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Velocity 2010

thomas — Fri, 25 Jun 2010 20:37:44 +0000

Velocity 2010, Web Performance & Operations Conference is just over.

The slides for some of the talks already are available online. Some of the web performance talks are quite interesting: Metrics 101: What to Measure on Your Website Mobile Web High Performance I Made a Map of the Internet – And What It Can Teach Us About Speeding Up

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yum install iostat

thomas — Fri, 11 Jun 2010 18:35:58 +0000

Sometimes you’re working on a machine and miss a certain tool. In my case, it was iostat I missed on a Red Hat server. iostat is a useful tool for a quick look at the I/O statistics of a unix/linux based machine. Looking for a convenient way to install iostat, my first idea was to yum

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