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Performance
A Primer on Making Drupal Fast
Martin Anderson-Clutz - Digital Echidna - @mandclu
Performance A Primer on Making Drupal Fast Martin Anderson-Clutz - - PowerPoint PPT Presentation
Performance A Primer on Making Drupal Fast Martin Anderson-Clutz - - PowerPoint PPT Presentation
Performance A Primer on Making Drupal Fast Martin Anderson-Clutz - Digital Echidna - @mandclu Why Speed Matters Performance Matters Shopzilla Speeding up their site by 5 seconds increased the conversion rate 7-12%, doubled the
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Performance Matters
Shopzilla – Speeding up their site by 5 seconds increased the conversion rate 7-12%, doubled the number of sessions from search engine marketing, and cut the number of required servers in half. Mozilla – Shaving 2.2 seconds off their landing pages increased download conversions by 15.4%, which they estimate will result in 60 million more Firefox downloads per year. Netflix – Adopting a single optimization, gzip compression, resulted in a 13-25% speedup and cut their outbound network traffic by 50%.
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What Users Want
47% of users expect a page to load in 2 seconds or less 40% abandon websites that take more than 3 seconds to load. As little as 1 second of delay decreases customer satisfaction by about 16% - every second counts 46% of online shoppers cite checkout speed as the number one factor that determines whether or not they will return to a site 85% of mobile users expect pages to load as fast or faster than they load on the desktop
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Benefits of Being Quick
UX Conversions $$$ SEO
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Understanding Performance
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Measurement
Page load Full page load Page render First paint Time to interact Requests per second
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Measurement Tools
Remote Monitoring (webpagetest.org, AlertSite, etc.) ySlow Google PageSpeed Google Analytics New Relic
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PHP Profiling
Watch the previous session on Blackfire
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Know Y
- ur Audience
Geography Technical Browser Bandwidth Device
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Key Factors
Page weight Number of requests 3rd party assets Delivery Server Complexity
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What tools or methods do you find helpful in diagnosing speed issues?
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Let’s make it better
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“Simplicity is the ultimate sophistication.”
- Leonardo da Vinci
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Site Strategy
Do less
Libraries Modules 3rd party services
Performance budget
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http://shouldiuseacarousel.com/
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Front End
Images! Compress aggressively Keep small Lazy load Remove unused CSS Use JS only when absolutely necessary Render-blocking elements at end of page
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Caching
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Site Build
Caching - Page, blocks, views Aggregate CSS and JS Disable/Uninstall unnecessary modules
Statistics UI Modules Search?
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Modules
Site Audit Advanced Aggregation Asynchronous Prefetch Database Query Cache (APDQC) Entitycache Fast 404 Syslog
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Hosting Environment
Enable mod_deflate to gzip text files Reverse Proxy (Varnish, Nginx, etc.) or cache (Boost) Content Distribution Network (CDN) Data Cache (APCu, Memcached, Redis, etc.) Version of PHP
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What’s in Drupal 8
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Drupal 8
Full support for PHP 7 Entity Cache in core Cache for logged in users Asset dependencies More granular cache Cache Context API #post_render_cache - placeholder HTML BigPipe
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What modules or services have you found helpful?
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