WordPress Zurich Meetup #5: mobilesport.ch insights

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Insights about one of our recent projects mobilesport.ch

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WordPress Zurich Meetup #5: mobilesport.ch insights

  1. 1. WordPress Zurich Meetup Mobilesport.ch - Insights 02. Juni 2014
  2. 2. Table of contents mobilesport.ch - Insights  What is the idea of mobilesport.ch  Main goals of the relaunch  A few statistics  Does „strong“ hardware make your WordPress faster?  Nginx vs. Apache  Site caching, AJAX and memcached  Used plugins  The WPML struggle is real  Learnings
  3. 3. What is the idea of mobilesport.ch mobilesport.ch - Insights  Platform for sports trainers and teachers  …And other people who are keen on sports  Search and find exercises covering their needs  Put exercises together on lists  Re-use and share exercise lists with others  And of course: Use the contents in their lessons or make their own lessons to keep themselves fit
  4. 4. What is the idea of mobilesport.ch mobilesport.ch - Insights
  5. 5. What is the idea of mobilesport.ch mobilesport.ch - Insights
  6. 6. What is the idea of mobilesport.ch mobilesport.ch - Insights
  7. 7. Main goals mobilesport.ch - Insights  1. Faster response times  2. Easier to handle and filter sports exerices  3. Refactor / modernize code base (our goal)
  8. 8. A few statistics mobilesport.ch - Insights  11‘950 posts  4‘222 in german, 4‘171 in french, 3‘557 in italian  191‘457 post meta data records  1‘440 terms  223‘578 term relationships  1‘258 registered users  2‘387 favorite lists  33‘377 list items  And this, combined with the WPML plugin is essentially what made it slow.
  9. 9. Does „strong“ hardware make your WordPress faster? mobilesport.ch - Insights
  10. 10. Does „strong“ hardware make your WordPress faster? mobilesport.ch - Insights  More CPU or RAM != Faster Request  More CPU/RAM == More Request/sec  More RAM == More possibilities to cache How to make a single request faster?  Fast basic installation (i.e. nginx/php5-fpm/hhvm)  Write efficient code  Cache as much as possible
  11. 11. nginx vs. apache2 - Installation mobilesport.ch - Insights Live Machine Test Machine Installation Type Physical Server VPS / Amazon EC2 CPU 2x6 2.5 GHz Cores (Xeon) 1 vCPU (Xeon E5-2670) RAM 8x8 GB (64GB total) 3.75 GB Harddisks Native SSD EBS Network Storage Webserver Apache 2.2.22 Nginx 1.4.1 PHP Installation mod_php5 / apache2handler php5-fpm PHP Version PHP 5.4.x PHP 5.5.x MySQL Version 5.5.37 5.5.37 Memcached 1.4.14 1.4.14
  12. 12. nginx vs. apache2 - Results mobilesport.ch - Insights Live Machine Test Machine Uncached Request (HT Disabled) 1.1s – 1.3s Not tested Uncached Request (HT Enabled) 700 – 800ms 400 – 500ms WordPress Ajax Request 200 – 350ms 100 – 200ms Cached Request (HTML Cache) 30 – 60ms 20 – 50ms Cached Requests/sec - simple siege ~2500 Req/s ~180 Req/s Cached Requests/sec – CPU Usage 10-15% 20-30% Uncached Requests/sec - simple siege ~50 Req/s ~20 Req/s Uncached Requests/sec – CPU Usage 30-35% +100%
  13. 13. Site caching, AJAX, memcached mobilesport.ch - Insights What makes the new mobilesport.ch faster?  Site caching (Serving cached sites from wp-config.php)  Using AJAX for dynamic content  Don‘t load certain modules while DOING_AJAX  Cache complex business logic (wp_cache_*)  Cache complex DB queries  Use memcached as WP_Object_Cache
  14. 14. Plugins mobilesport.ch - Insights Which plugins did we use?  Antispam Bee  Contact Form 7  Google XML Sitemaps  Installer (Especially for WPML)  JWPlayer 6 Plugin  TinyMCE Advanced  WPML  wpSEO
  15. 15. The WPML struggle is real mobilesport.ch - Insights Maybe you have seen tweets like these:
  16. 16. The WPML struggle is real mobilesport.ch - Insights What were the problems  Various bugs with memcached  Looks like WPML is not actually tested for persistent caching  Proper cache invalidation missing  Very slow support  Support answers quite fast, but…  Solutions are developed slowly (or not at all)  New (major) bugs with every update  We are live, but there are still unfixed bugs  Memcached is „completely disabled“ in backend  Features like bulk editing removed
  17. 17. The WPML struggle is real mobilesport.ch - Insights What were the problems  Various bugs with memcached  Looks like WPML is not actually tested for persistent caching  Proper cache invalidation missing  Very slow support  Support answers quite fast, but…  Solutions are developed slowly (or not at all)  New (major) bugs with every update  We are live, but there are still unfixed bugs  Memcached is „completely disabled“ in backend  Features like bulk editing removed
  18. 18. Learnings mobilesport.ch - Insights  We‘re not going to use WPML anymore  Hint: We migrated every project to our own ML solution  Mobilesport.ch is our last project where we use WPML  When using memcached  …Make sure you have enough RAM allocated  …Make sure that all plugins work properly  If possible, use nginx/php5-fpm configurations  You might want to try hhvm instead of php5-fpm  Refactoring a whole code base needs a lot of analysis  Updating WordPress or a plugin can cause serious issues
  19. 19. Michael Sebel Software-Engineer Twitter: @msebel michael.sebel@blogwerk.com Questions and contact mobilesport.ch - Insights

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