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    <p>Jan &amp; idm are right but here's how to:</p> <p>Caching (pages or contents) is crutial for performance. The minimum calls you request to the database or the file system is better whether if your content is static or dynamic.</p> <p>You can use a PHP accelerator if you need to run dynamic content:</p> <p>My recommendation is to use <a href="http://php.net/manual/en/book.apc.php">Alternative PHP Cache (APC)</a></p> <p><em>Here's some benchmark:</em></p> <p><a href="http://agilewebmasters.com/robert/what-is-the-best-php-accelerator-to-use/">What is the best PHP accelerator to use?</a></p> <p><a href="http://blog.digitalstruct.com/2007/12/23/php-accelerators-apc-vs-zend-vs-xcache-with-zend-framework/">PHP Accelerators : APC vs Zend vs XCache with Zend Framework</a></p> <p><a href="http://blog.bodhizazen.net/linux/lighttpd-php-acceleration-benchmarks/">Lighttpd – PHP Acceleration Benchmarks</a></p> <p><strong>For caching content and even pages you can use: <a href="http://memcached.org/">Memcached</a> or <a href="http://redis.io/">Redis</a>.</strong></p> <p><strong>Memcached:</strong> Free &amp; open source, high-performance, distributed memory object caching system, generic in nature, but intended for use in speeding up dynamic web applications by alleviating database load. Memcached is an in-memory key-value store for small chunks of arbitrary data (strings, objects) from results of database calls, API calls, or page rendering.</p> <p><strong>Redis</strong> Redis is an open source, advanced key-value store. It is often referred to as a data structure server since keys can contain strings, hashes, lists, sets and sorted sets.</p> <p>Both are very good tool for caching contents or variables.</p> <p><em>Here's some benchmark and you can choose which one you prefer:</em></p> <p><a href="http://trespams.com/2011/08/05/redis-vs-memcached-en/">Redis vs Memcached</a></p> <p><a href="http://systoilet.wordpress.com/2010/08/09/redis-vs-memcached/">Redis vs Memcached</a></p> <p><a href="http://dormando.livejournal.com/525147.html">Redis VS Memcached (slightly better bench)</a></p> <p><a href="http://antirez.com/post/redis-memcached-benchmark.html">On Redis, Memcached, Speed, Benchmarks and The Toilet</a></p> <p><strong>You can install also <a href="https://www.varnish-cache.org/">Varnish</a>, <a href="http://nginx.org/">nginx</a>, or <a href="http://gwan.ch/">G-Wan</a></strong></p> <p><strong>Varnish</strong>: Varnish is an HTTP accelerator designed for content-heavy dynamic web sites. In contrast to other HTTP accelerators, such as Squid, which began life as a client-side cache, or Apache, which is primarily an origin server, Varnish was designed from the ground up as an HTTP accelerator.</p> <p><strong>nginx</strong> nginx (pronounced ?engine-x?) is a lightweight, high-performance Web server/reverse proxy and e-mail (IMAP/POP3) proxy, licensed under a BSD-like license. It runs on Unix, Linux, BSD variants, Mac OS X, Solaris, and Microsoft Windows.</p> <p><strong>g-wan</strong> G-WAN is a Web server with ANSI C scripts and a Key-Value store which outperform all other solutions.</p> <p><em>Here's some benchmark and you can choose which one you prefer:</em></p> <p><a href="http://nbonvin.wordpress.com/2011/03/14/apache-vs-nginx-vs-varnish-vs-gwan/">Serving static files: a comparison between Apache, Nginx, Varnish and G-WAN</a></p> <p><a href="http://loadstorm.com/2011/web-server-performance-benchmarks">Web Server Performance Benchmarks</a></p> <p><a href="http://www.go2linux.org/linux/2011/04/nginx-varnish-compared-nginx-941">Nginx+Varnish compared to Nginx</a></p> <p><a href="http://cd34.com/blog/infrastructure/apache-varnish-nginx-and-lighttpd/">Apache, Varnish, nginx and lighttpd</a></p> <p><a href="http://www.wikivs.com/wiki/G-WAN_vs_Nginx">G-WAN vs Nginx</a></p>
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    1. COi use nginx + redis and they are super fast +1 for the answer
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