PUBLIC MARKS with tags clevermarks & performance

So slow pages can have a very real impact on your business. These are some very real incentives for whipping your site into shape, so let’s move on from the why to the how.

The folks at Evernote were kind enough to write up an overview of their architecture in a post titled Architectural Digest. Dave Engberg describes their approach to networking, sharding, user storage, search, and some other custom services.

In this talk, Khalid of 2bits.com, Inc., Inc will talk about a how to scale a Drupal web site with the following statistics. 3.4 million pages per day peak 92 million page views per month 189,650 page views per hour peak 840,000 visits on peak day 22.96 million visits per month 52,747 visits per hour peak So far, this is the highest traffic a Drupal site gets that we heard of. What is amazing is that this web site runs on a single mid range server ...

Here are five rules to help you optimize your Drupal installation, as well as some examples to illustrate how to apply them. Server optimization is a huge field, and it is constantly evolving, but we can to study simple cases to understand more complex ones.

Enfin un schéma simple montrant la différence entre async, defer et rien

jQuery LazyLoad Ad

Yotta fait comme beaucoup d'autres de l'analyse de performance des sites, mais permet en plus de lier cela à Google Analytics pour (tenter de) mesurer les impacts.

"Here are some statistics about the size, number of resources and other such metrics of pages on the world wide web. These are collected from a sample of several billions of pages that are processed as part of Google's crawl and indexing pipeline."

"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."

"With LABjs you can load your js files completely asynchronous."

Slides de la présentation de Rasmus Lerdorf lors des Digg « Engineer-to-Engineer: San Francisco Tech Talks ». http://about.digg.com/blog/rasmus-lerdorf-php-performance

"boomerang is a piece of javascript that you add to your web pages, where it measures the performance of your website from your end user's point of view"

"loading scripts and stylesheets in the typical way creates a frontend single point of failure that can bring down the entire site"

"Show Slow is an open source tool that helps monitor various website performance metrics over time. It captures the results of YSlow and Page Speed rankings and graphs them"

C'était déjà connu des spécialistes, mais ça devient vraiment officiel : « Like us, our users place a lot of value in speed — that's why we've decided to take site speed into account in our search rankings. »