Pure Speed Drupal 4 Gov talk
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The document provides a comprehensive overview of optimizing server performance for Drupal applications, focusing on various tools, configurations, and caching strategies. It includes recommendations for server setups with Apache, PHP, and MySQL, along with specific Drupal modules and techniques to enhance performance. Additionally, it discusses front-end performance optimization and asset delivery strategies to improve user experience and server efficiency.
![Drupal - APC
• drupal.org/project/apc -Exposes APC user bin as a cache backend
• Beware of fragmentation
• Can’t be used in a distributed / clustered deployment (use memecache / reddis)
$conf['cache_backends'][] = 'sites/all/modules/apc/drupal_apc_cache.inc';
$conf['cache_class_cache'] = 'DrupalAPCCache';
$conf['cache_class_cache_admin_menu'] = 'DrupalAPCCache';
$conf['cache_class_cache_block'] = 'DrupalAPCCache';
$conf['cache_class_cache_bootstrap'] = 'DrupalAPCCache';
$conf['cache_class_cache_entity_file'] = 'DrupalAPCCache';
$conf['cache_class_cache_field'] = 'DrupalAPCCache';
$conf['cache_class_cache_menu'] = 'DrupalAPCCache';
$conf['cache_class_cache_libraries'] = 'DrupalAPCCache';
$conf['cache_class_cache_token'] = 'DrupalAPCCache';
$conf['cache_class_cache_views'] = 'DrupalAPCCache';
$conf['cache_class_cache_path_breadcrumbs'] = 'DrupalAPCCache';
$conf['cache_class_cache_path'] = 'DrupalAPCCache';
$conf['cache_class_cache_book'] = 'DrupalAPCCache’;](https://image.slidesharecdn.com/performance-160420170543/85/Pure-Speed-Drupal-4-Gov-talk-18-320.jpg)
Pure Speed Drupal 4 Gov talk
- 1. #PureSpeed elmsln.org @btopro Come get sticker like this one In dribs and drabs we will change the world
- 2. Project Lead ELMS Initiative Instructional Systems Architect E-Learning Institute College of Arts & Architecture Penn State University @btopro (aka Bryan Ollendyke)
- 4. #purespeed • Tools to identify problems / needs • General Server Optimization • Drupal 7/8 Optimization • Fixing common front-end delivery issues
- 5. Free / Local digging • Drupal.org/project/devel • Enable and set to display results of queries / memory usage • Hack Core • Throw a dpm() into module_invoke_all (includes/module.inc in D7) • https://drupal.psu.edu/blog/post/memory-profiling-hooks • XH-Prof • https://www.drupal.org/project/xhprof • Stand alone php profiler w/ drupal integration
- 6. Big Data • Ability to trace errors deeply • Drupal specific breakdowns • Example • https://www.drupal.org/node/2370309#comment-10368929
- 7. Server: Apache FPM • Switch from mod_php processing to FPM • yum install php5-fpm • Obviously more to it then that but worth exploring • https://github.com/bradallenfisher/php56-fpm-centos7-mysql56
- 8. Server: PHP • PHP -- /etc/php.ini or /etc/php5/fpm/php.ini • Zend Opcache -- /etc/php.d/opcache.ini or /etc/php5/mods-available/opcache.ini • APC/u - /etc/php.d/apc.ini or /etc/php5/mods-available/apcu.ini • https://drupal.psu.edu/blog/post/purespeed-php-tuning • Cache code files in memory • Otherwise memory used to deliver insane! • PHP 5.5+ use Zend OpCache • APCu if you want as cache backend • PHP < 5.4 use APC • user bin for backend builtin • Biggest deal in mcarper’s opinion • realpath_cache_size = 1M • realpath_cache_ttl = 3600
- 9. Server: MySQL • MySQL - /etc/my.cnf • Most common issue: • max-allowed-packet = 32M • Disable caching engine (counter intuitive but Drupal makes this worthless) • Ensure innodb table encoding, and tuned • Drupal Contrib: • APDQC – drupal.org/project/apdqc • Replacement for Core mysql cache bin engine • Eliminates deadlocks • Gives report on how to further optimize your server • Use other alternate cache backends (so mysql does less)
- 10. Drupal: Cache bin management • Cache Bin Management • https://drupal.psu.edu/blog/post/purespeed-cache-bin-backends • Popular options • Apc user bin – great for things that don’t change • Fast, cheap and easy for anyone (don’t push page cache here!) • Filecache – writ to file system for cache data • Great, cheap and easy if on SSD • Memcache –popular in distributed / complex setups • Reddis – similar to memcache, newer and more popular now • Both great but usually you want this on its own server / more complicated • Apdqc – replacement for mysql core cache bin mechanism • Run on any site
- 11. Drupal: Cache bin WARNING • Make sure file paths are correct! • WSOD • cache_form CAN NOT live in bins • All page form submission breaks • APC fragmentation • Restart apache on interval • APDQC recommendations • Some involve mysql upgrades • Semephor / session replacements can cause issues
- 12. Drupal / Server • httprl_spider - https://www.drupal.org/project/httprl_spider • xmlrpc_page_load - https://www.drupal.org/project/xmlrpc_page_load • Usage: • drush @site hss node (request all nodes on site, as anonymous) • drush @site hss node –xmlrpcuid=1 (all nodes on site, “as user 1”) • Great for seeding anonymous/auth’ed user page caches • Stuff in a crontab nightly after cron (so caches are cleared out) • vi /etc/crontab * 4 * * * root drush @mysite cron 15 4 * * * root drush @mysite hss
- 13. Server: Varnish • Varnish - /etc/varnish/default.vcl • yum install varnish • Reverse Proxy that sits in front of apache • Listen on 80; move apache to port 8080 • must have for anonymous traffic / high scale • Can’t handle HTTPS (without 4.x + plugin) • Nginx • More performant then stock apache but leess support • useful reverse proxy for HTTPS if not running outright
- 14. Drupal 7 - entitycache • https://www.drupal.org/project/entitycache • Core in drupal 8.x.x! • Caches entity / object definitions (basically required for field collections) • Turn it on, that’s it!
- 15. Drupal 7 - APDQC • Covered earlier • Install, read README and status page • Fix issues it reports • Faster site with less time spent in mysql calls
- 16. Drupal 7 & 8 - advagg • Drupal.org/project/advagg • Covered earlier • Should be on every site you do • Biggest gains in compression, bundler, async font loader and pushing js to footer • Great for improving perception of page load • Beware of bricking JS though
- 17. Drupal - HTTPRL • Drupal.org/project/httprl • Threading capable • Allows for queuing background threads and non-blocking calls • Similar to Guzzle (D8 core) • Makes certain projects faster (like advagg) • *Can be a bit of a troublemaker • https://drupal.psu.edu/blog/post/bench-marking-non-blocking-httprl-vs- drupalhttprequest • https://drupal.psu.edu/blog/post/core-caching-and-drupalstatic-make-cached- drupalhttprequests
- 18. Drupal - APC • drupal.org/project/apc -Exposes APC user bin as a cache backend • Beware of fragmentation • Can’t be used in a distributed / clustered deployment (use memecache / reddis) $conf['cache_backends'][] = 'sites/all/modules/apc/drupal_apc_cache.inc'; $conf['cache_class_cache'] = 'DrupalAPCCache'; $conf['cache_class_cache_admin_menu'] = 'DrupalAPCCache'; $conf['cache_class_cache_block'] = 'DrupalAPCCache'; $conf['cache_class_cache_bootstrap'] = 'DrupalAPCCache'; $conf['cache_class_cache_entity_file'] = 'DrupalAPCCache'; $conf['cache_class_cache_field'] = 'DrupalAPCCache'; $conf['cache_class_cache_menu'] = 'DrupalAPCCache'; $conf['cache_class_cache_libraries'] = 'DrupalAPCCache'; $conf['cache_class_cache_token'] = 'DrupalAPCCache'; $conf['cache_class_cache_views'] = 'DrupalAPCCache'; $conf['cache_class_cache_path_breadcrumbs'] = 'DrupalAPCCache'; $conf['cache_class_cache_path'] = 'DrupalAPCCache'; $conf['cache_class_cache_book'] = 'DrupalAPCCache’;
- 19. Drupal 7 - Authcache • drupal.org/project/authcache • Aggressive caching methods for authenticated users • Great when granularity of access is per role • Caches per combination of roles (handles anonymous too) • Can cache admin, not recommended • Need to modify settings.php / authcache.php in Drupal root • https://github.com/elmsln/elmsln/blob/master/core/dslmcode/shared/drupal- 7.x/modules/ulmus/authcache/modules/authcache_p13n/safe_frontcontroller/au thcache.php
- 20. Drupal 8 - BigPipe • Core in 8.1.x+ • Delivers parts of the page that take more time by loading the static stuff by itself, to load SOMETHING • Then additional JS based calls inject the slower parts of the page build
- 21. Drupal 8 - Refreshless • https://www.drupal.org/project/refreshless • Similar to the Turbo Links, a technique from Rails • Page never actually reloads, it just calls in the background for parts of page • Similar to loading items on github.com (click between links and see!)
- 22. The dreaded inherited site • ELMSLN stack • Someone screwed stuff up! • Identify issues • Win
- 24. Front end performance • Yslow • Firefox / Chrome plugin by Yahoo
- 25. Front end performance • PageSpeed • Chrome, right click -> inspect element -> Audits • Select Reload page and Audit on Load -> Run
- 26. Front end performance • Webpagetest.org
- 27. Asset Delivery • Deliver assets logically • Etags that make sense • Expire headers that make sense (far in the future for static assets) • Logical headers = less requests on future page loads • Which makes Apache happy • Your users happy!
- 28. Server: Apache • Compression – send less w/ the same result • Etags – strip off so validation of resource match happens • Expires headers – ensure static assets are kept far into the future • Keep Alive – create less apache workers by keeping them open longer • MaxClients – set appropriately or server will die • memory per page / (RAM – other services) = MaxClients • Cheating – zzz_performance.conf • Drop in performance gain for almost any drupal / apache site • https://github.com/elmsln/elmsln/blob/master/scripts/server/zzz_performance.conf
- 29. JS / CSS blocking • AdvAgg • https://www.drupal.org/project/advagg • Turn on modify and bundler sub-modules • Push for 2 groupings of css / js on bundler settings page • Modifier • Basically check everything that doesn’t sound evil • Use modify to push js into the bottom of the page • Careful, JS needs to be well formed! • Experimental! • Use javascript to load CSS • It’s in the bottom of the advagg modifier settings
- 30. Fixing CDN category • All systems complain about CDN till you define what CDN is! • Ways to fix • Buy a legit CDN and pay a lot of money • Install https://www.drupal.org/project/cdn (illegitimate CDN) • Use settings in jquery_update module to deliver from Google / Microsoft • If on bootstrap, select CDN for code source • Use https://www.google.com/fonts for custom font CSS instead of local
- 31. Make less requests • AdvAgg / aggregate CSS/JS files can help • https://www.drupal.org/project/advagg • Convert small images to sprites or “data” objects • https://www.drupal.org/project/css_emimage • Good luck though.. • You’re using a modular CMS / framework!