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This month

Podcast #75 - Blog – Stack Overflow

by night.kame

Tom notes that if you have a small site that can be served by one box, any stack will do. If you have a medium site that needs hundreds of requests per second, go with what your team knows best. But beyond that, once you get the hundreds of thousands of queries per second, everyone builds a custom solution.

Oui, mais c'est tellement plus drôle de jouer les prophètes sur la fin des bases relationelles !

October 2009

High Performance Web Sites :: Aptimize: realtime spriting and more

by karlcow

tracking Aptimize for about a year since they contacted me about their Website Accelerator. I was psyched to have them present at and sponsor Velocity. Website Accelerator changes web pages in real time and injects many of the performance best practices from my books, plus some others that aren’t in my books. It’s a server-side module that runs on Microsoft Sharepoint, ASP.NET, and Linux/Apache.

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August 2009

March 2009

scaling drupal - an open-source infrastructure for high-traffic drupal sites | johnandcailin

by holyver & 1 other
in this article, i outline a step-by-step process for incrementally scaling your deployment, from a simple single-node drupal install running all components of the system, all the way to a load balanced, multi node system with database level optimization and clustering. since you almost certainly don't want to jump straight from your single node system to the mother of all redundant clustered systems in one step, i've broken this down into 5 incremental steps, each one building on the last. each step along the way is a perfectly viable deployment.

October 2008

The Freebase Blog » Blog Archive » A Brief Tour of Graphd

by greut

Freebase.com is powered by a tuple store called graphd. Graphd is a C/Unix server which processes commands in a simple template-based query language.

linked articles are also interesting

August 2008

load test your drupal application scalability with apache jmeter | johnandcailin

by holyver & 2 others (via)
there are many things that you can do to improve your drupal application's scalability, some of which we discussed in the recent scaling drupal - an open-source infrastructure for high-traffic drupal sites article.

lasvm [Léon Bottou]

by ogrisel (via)
LASVM is an approximate SVM solver that uses online approximation. It reaches accuracies similar to that of a real SVM after performing a single sequential pass through the training examples. Further benefits can be achieved using selective sampling techniques to choose which example should be considered next. As show in the graph, LASVM requires considerably less memory than a regular SVM solver. This becomes a considerable speed advantage for large training sets. In fact LASVM has been used to train a 10 class SVM classifier with 8 million examples on a single processor.

July 2008

May 2008

Yariv’s Blog » Blog Archive » Announcing Twoorl: an open source ErlyWeb-based Twitter clone

by greut

With the recent brouhaha over Twitter’s scalability problems, I thought, wouldn’t it be fun to write a Twitter clone in Erlang?

Last weekend was cold and rainy here in Palo Alto, so I sat down and hacked one, and thus Twoorl was born. It took me one full day plus a couple of evenings. The codebase is about 1700 lines (including comments).

Twitter is dead, long live to Twoorl. The code is open source.

Facebook Developers | Thrift

by webs & 2 others
Thrift is a software framework for scalable cross-language services development. It combines a powerful software stack with a code generation engine to build services that work efficiently and seamlessly between C++, Java, Python, PHP, and Ruby.

April 2008

Super-sising YouTube with Python

by greut

don't waste time writing code to restrict people

after the video that was great the slide on how YouTube scaled. Interesting as always.

Google Architecture | High Scalability

by holyver & 1 other (via)
Google is the King of scalability. Everyone knows Google for their large, sophisticated, and fast searching, but they don't just shine in search. Their platform approach to building scalable applications allows them to roll out internet scale applications at an alarmingly high competition crushing rate. Their goal is always to build a higher performing higher scaling infrastructure to support their products. How do they do that?

March 2008

Pylot | Open Source Web Performance Tool

by greut & 2 others

Pylot is a free open source tool for testing performance and scalability of web services. It runs HTTP load tests, which are useful for capacity planning, benchmarking, analysis, and system tuning.

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