This year
Perfection kills » Profiling CSS for fun and profit. Optimization notes.
Fortunately, just few days before, Opera folks came out with an experimental “style profiler” (followed by WebKit’s ticket+patch shortly after). The profiler was meant to reveal the performance of CSS selector matching, document reflow, repaint, and even document and css parsing times.
2010
Generate CSS Sprites on the Fly with Lemonade
by ghis
Sprites generator. Integrates with SASS to generate the corresponding CSS code.
How to Write Efficient CSS Selectors - O'Reilly Answers
by nhoizey
"The impact of CSS selectors on performance derives from the amount of time it takes the browser to match the selectors against the elements in the document. Developers have some control over how long this matching takes by writing their selectors to be more efficient. The path to efficient selectors starts by understanding how selector matching works."
Efficiently Rendering CSS | CSS-Tricks
by ghis & 1 other (via)
Some rules for rendering efficiently CSS : ID, class and then universal, plus other tips
Le Lab / Pheromone » A comparison of performance, UX and dev-friendliness of various webfonts services
My test page, based on fontsquirrel’s webfont comparison page loads the fonts from the 4 providers (unfortunately, fontdeck does not seem to offer the Cantarell fount, a common denominator between all other three services, hence the difference). The rest of my testing consists mostly of analysis of speed, HTTP headers and other tinkering through firebug.
High Performance Web Sites :: Frontend SPOF
by nhoizey
"loading scripts and stylesheets in the typical way creates a frontend single point of failure that can bring down the entire site"
The Real Performance Overhead of CSS Expressions Performance, Scalability and Architecture – Java and .NET Application Performance Management (dynaTrace Blog)
by dzc
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”
2009
Browserscope
by piouPiouM & 3 others
Browserscope is a community-driven project for profiling web browsers. The goals are to foster innovation by tracking browser functionality and to be a resource for web developers.
Overcome Your Caching Conundrums [Server Side Essentials]
by dzc
ealing with browser caching is a balancing act. On one hand, you aim to minimize load times and bandwidth use by ensuring that images, scripts, and style sheets are cached by your visitors; however, you still want to ensure that they’re accessing the most recent versions of all your files.
In this article, I’ll show you a few methods for controlling how your site’s files are cached by browsers so you can achieve the best of both worlds: maintaining optimal performance while ensuring that any updates are seen immediately, without a hitch by all of your users.
