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Community: Performance Recommendations

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ebollens edited this page Sep 29, 2011 · 4 revisions

Application-level Techniques

Application cache
Use a CDN to deliver images from multiple domains (for parallel in stream to counter HTTP 1.1 spec)
Place all <style> and <link> in <head>
Place all app-specific <script> at the bottom of
Make <script> and <link> external rather than inline to minimize non-cached response time
Reduce redirects
In PHP, flush the buffer right after with flush()
Sprite images
Use pngcrush and jpegtran
Use image compressor, don't scale images
Keep components under 25K so that iPhone will cache them
Keep DOM small

Server-level Techniques

Apache 2 mod_deflate (or Apache 1.3 mod_gzip) to gzip files
Use a CDN to deliver images from multiple domains
Use cookie-free domains for components
Apache Keep-Alive header

Framework-level Techniques

Javascript benchmarking
Revisiting the Cache headers
Tighten up "domain" on cookies (explicit)
Always use event handlers smartly (tighten the number of listeners)
Convert to using imagemagik (from GD) and optimize as necessarily
Keep components under 25K so that iPhone will cache them (js.php is 27 KB currently)

From 2011-09-29 Meeting Focus on Performance