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WikiPedia architecture and scalability
- Details
- Category: Performances
- Published on Friday, 27 July 2007 23:14
- Written by Administrator
- Hits: 5666
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This PDF is a lot more technical, but reveal some challenges WikiPedia is facing in order to maintain its infrastructure/response time. WikiPedia is simply the biggest multilingual free-content encyclopedia on the Internet. Over 7 million articles in over 200 languages, and still growing.
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[...] Started as Perl CGI script running on single server in 2001, site has grown into distributed platform, containing multiple technologies, all of them open. The principle of openness
forced all operation to use free & open-source software only. Having commercial alternatives out of question, WikiPedia had the challenging task to build efficient platform of freely
available components. [...]
One more time, worth reading if you are into web development, performance and scalability. It seems that lighttpd is more and more used for serving static files (html, images, js, css, pdf ...) instead of the venerable Apache
If you have still some new fresh neuron to burn, you can read the Overall system architecture and more HERE
The most important news here is that Wikipedia currently uses APC, so I choose the right PHP cache ;-)
Ebay architecture scalability
- Details
- Category: Performances
- Published on Friday, 27 July 2007 22:44
- Written by Administrator
- Hits: 6055
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At SD Forum 2006, Randy Shoup and Dan Pritchett, both with eBay, gave a presentation on eBay's architecture. Pritchett subsequently posted his presentation slides in his blog, The eBay Architecture. Predictably, the presentation contained a few inspiring statistics, such as:
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Other stats in the presentation related to development process and features, such as:
"According to the presentation, the goal of eBay's current architecture is to handle an additional ten-fold increase in traffic, something eBay expects to reach within a few short years. Another architecture objective is to be able to handle peak loads, and for components to gracefully degrade under unusual load or in the case of system failures." read more HERE
YouTube Scalability Talk
- Details
- Category: Performances
- Published on Friday, 27 July 2007 21:30
- Written by Administrator
- Hits: 5528
Kyle Cordes’s blog post on the “YouTube Scalability Talk” It’s definitely worth reading!
Speed up your web pages with YSlow
- Details
- Category: Performances
- Published on Friday, 27 July 2007 21:35
- Written by Administrator
- Hits: 5195
YSlow analyzes web pages and tells you why they're slow based on the rules for high performance web sites. YSlow is a Firefox add-on integrated with the popular Firebug web development tool. YSlow gives you:
- Performance report card
- HTTP/HTML summary
- List of components in the page
- Tools including JSLint
Download HERE
Visit also the homepage of the team behind this tool: Yahoo!'s Exceptional Performance Team
You should not take too much time to guess that I am currently optimizing my homepage :-)
Be careful, running this tool more than 5 times make my Firefox crash ;-)
Some statistics:
- forums.waltercedric.com Performance Grade: B (87), still working on it
- www.waltercedric.com Performance Grade: B (83) was F before, still working on it
- gallery.waltercedric.com Performance Grade: D (66), still working on it
- ShrinkSafe is a JavaScript "compression" system. It can typically reduce the size of your scripts by a third or more, depending on your programming style.
- mod_expires apache 2.0 modules documentation in order to reduce bandwidth
- mod_deflate and mod_expires small howto
- compressing javascript or how to compress javascript with htaccess, useful if you can't touch the apache configuration.
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