# Run, Content, run! --- # Markus Heurung @muhh Co-Founder and Web operations lead of freistil IT freistilbox.com --- ## What’s high performance? --- ## It's about the speed. Notes: Not about the amount of requests. Or traffic. Definitely not about scalability. --- ## anonymous vs. authenticated ## static vs. generated --- # What's to optimise? Browser PHP Drupal Webserver Filesystem Database --- # Static files  ——— # Tuning Linux Fast disks File system cache File system layout — # Tuning Apache MaxClients & Co. KeepAlive Scaling out —— # Drupal  —— # Tuning PHP Get many CPU cores Use an opcode cache (APC) * Check apc.php * 128-256 MB —— # Drupal Database for almost everything: * Content * Configuration * Content queries and layout * Caches * Watchdog (logs) —— # Configure Drupal Compression CSS & JS aggregation Caching Watchdog into syslog into logstash —— # Choose your modules wisely! —— # Optimise your database queries —— # views queries, too —— # MySQL Disk I/O InnoDB Buffers (caches, temp tables) —— # use less DB —— # Cache → memcached Notes: or redis —— # Search → Apache Solr Notes: and content collections —— # Content → MongoDB ——  —— # [] Varnish ——  ——  —— # Tuning Varnish Modules: * Purge, Expire, Rules * Varnish Optimise VCL logic ——  [^1] [^1]: https://www.flickr.com/photos/kimberlykv/5061421858 —— # monitor & measure Notes: measure your settings monitor your usage apply insights to your setup rinse & repeat —— # Thanks! # Questions? # markus@freistil.it