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Wordpress optimization { Speed up your wordpress

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Who dafuq are you?

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What are we going to talk about? How to improve your wordpress performance.Speed up your website over than 700% faster!

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What are we going to talk about?1. Huh? Performance?2. How do I analyze my wordpress performance?3. How to optimize!

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Hey.. Wait a second!Why should I do it? 1. Why not? 2. It will save you money! $$$$ 3. Make your users happy    4. Stay up under heavy load.. 5. Improve your google results!

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What does it mean “Performance”?Loading time is influenced by Hardware Services Requests Better hosting Configurations Caching Better hardware 3rd party serviced Right Development (varnish, cdn..,apc) Location

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What does it mean “requests”?

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What does it mean “Performance”?There are two states: Deploy Production 1 user = request at time multiple users = multiple request low hardware high hardware

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Analyzing toolsThere are few tools to analyze our website:1. Feeling - the website went slow2. Requests analyzing tools3. By-subject analyzing tools4. Wordpress analyzing

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Requests analyzingFirebug’s Net tab:

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Requests analyzing webpagetest.orgAllowing test with different engines, and test within first view or repeated.. And much more

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Requests analyzingPingdom.com tools

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By-subject analyzingYSlow:

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By-subject analyzingYSlow:

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By-subject analyzingGoogle pagespeed:

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By-subject analyzingGoogle pagespeed:

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Wordpress analyzingWordpress plugin: P3P3 is analyzing yourplugins and provide andetailed analysis.

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Cat time!

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How to optimize!The obvious:1. Keep your wordpress updated! (core & plugins)2. Deactivate unused plugins3. Check about the plugin before install it.4. Analyze your website.. Duh?

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Optimize serverUse linux!• Configure the PHP as well - increase memory, timeout..• Configure MySQL as well - some innodb issues may slow your website

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Optimize server• Use opcode accelerators - APC, Xcache, memcache• Varnish• Consider replacing apache2 with nginx

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Development optimizationsRemember this?Because our browser have many requests, the loading time much longer.So, lets try to reduce the requests!

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Development optimizationsUse sprites!Sprites make the browser load all the images at once and reducing newrequests.

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Development optimizationsMinify and aggregation1. Aggregate all the resources(js, css, image->sprites)2. Aggregation is reducing the requests3. Minifying all the resources(html, css, js)4. Minifying is speeding up your loading!

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Development optimizationsJavascript1. Make your ajax scripts cacheable2. Reduce document ready events.3. Reduce jQuery queries! – every query is scanning the whole webpage! use canonical finding instead: var $section = $("#section"); $section.find(".class").text("cool");

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Development optimizationsWrite semantic and valid code!1. Separate code from style: markup shouldnt contains style elements.2. Use CSS’s pseudo class “:before” and “:after”3. Use CSS3 features(gradient, shadow…)

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Development optimizations Write semantic code by the html5 rules!<header role="banner"> <h1><a href="http://link.com/" title="Website" rel="home">Logo</a></h1> <nav role="navigation"><ul> <li class="current"><a href="http://link.com/" title="Home">Home</a></li> <li class="page_item"><a href="http://link.com/About">About</a></li> </ul></nav></header><section id="content"> <article id="post-19" class="post-19 post type-post"> … </article> <article id="post-21" class="post-21 post type-post"> … </article></section><footer> …</footer>

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Development optimizationsImages1. DO NOT scale images with CSS!2. Save images for web3. You may use www.smush.it or WP-Smush.it plugin

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Development optimizationsSet properly headers for browser-cachingSet expire headers, e-tags, etc..GZip everything!Compress your source files(css, js, html) with gzip.. It will accelerate your loading time.

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What is cache? Database Web ServerThis is really long way..And actually.. It’s the same result!

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What is cache?Cache is the way to access distant data faster by storing it locally.

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Server-side cacheEvery request for each page is making our website rebuild this page using the databaseour theme, and much more.. Database Request homepage Server But, actually- our page hasn’t been changed.

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Cache optimizationsSo.. Why haven’t we cache this pages?! Cached page is page cached? Database Request homepage Server

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Cache optimizations April 2010 results..

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Cache optimizations April 2010 results..

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Cache optimizationsThere are two leading plugins:1. W3 Total Cache – complex, but cover much everything! Including CDN, minifying, aggregation, and much more..2. WP Super Cache – much simpler! Almost automatic.. Handle only caching.

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CDN

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Server CDN 1s3s 1s 3.5s 8s 7s 15s 18s

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Server CDN 1s 1.5sjs 1s 1.5s CDNimg CDN 1.5scss 2s CDN 1s 1.2s

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CDN1. Use Google’s CDN for jQuery by “use-google-libraries” plugin2. If you have serious traffic you may use enterprise CDN

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HARDCODE!1. Use separate server for database server2. Use HyperDB for multiple database servers3. Use Memcache on separate server4. Use nginx5. Develop you plugin using the wordpress cache api!

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MOST IMPORTANT!NEVER EVER hack the core.

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Questions?

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Thank you!