Scaling php - Intercon php
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This document summarizes techniques for scaling PHP applications. It discusses using the latest PHP version and disabling unnecessary extensions to reduce memory usage. It also covers tuning php.ini settings, using PHP accelerators like APC and OPcache, sharing session data across servers, caching with Memcache, and reverse proxying with Nginx. The presenters are Lucas Arruda and Handrus Nogueira, software architects with experience optimizing PHP applications.
Scaling php - Intercon php
- 1. Scaling PHP Lucas Arruda lucas@ciandt.com @lunascarruda Handrus Nogueira handrus@taller.net.br @handrus
- 2. Lucas Arruda Software Architect @ CI&T Open-Source enthusiast ~10 yrs on the road Based on Campinas-SP Zend Certified Engineer PHP 5.3 Drupaler for 4 yrs Google Cloud Platform Qualified Dev.
- 3. Handrus Software Architect / Dev @ Taller Open-Source and Agile ~10 yrs on the road Based on Bauru-SP/Florianópolis-SC Drupaler for 3 yrs
- 4. The Basics
- 5. Use the latest PHP stable version
- 6. Use the latest PHP stable version
- 7. Disable unnecessary PHP extensions and web-server modules ● PHP extensions consume memory heap ● Some badly written can cause memory leaks ● The same applies for web-server modules ● Disable if you don’t need them!
- 8. Fine tune your php.ini! ● memory_limit memory_get_usage() / memory_get_peak_usage() ● realpath_cache_size realpath_cache_get() ● realpath_cache_ttl Max execution per thread - will affect memory usage!
- 11. PHP ACCELERATORS
- 12. Alternative PHP Cache (APC) Zend OPcache XCache
- 15. Zephir
- 17. Does your app use session data? No: you’re good to go! Yes: then you’ll need to manage this data across multiple servers.
- 18. Sharing session data Fault tolerant No bottleneck Cheaper buut… it needs architecure changes! Persistent load balancing Sharing session data PHP Session Management Persistent load balacing Single point of failure Bottleneck Expensive
- 19. Options Shared file-system Database Memcache / Redis session.name session.save_handler session.save_path Sharing session data Handlers files user memcache
- 20. Avoid database specific queries. Good libraries can help (Doctrine FTW!) If not possible Document like any Technical Debt!
- 21. And choose well your database!! ● MySQL ● MariaDB ● PerconaDB Version?!
- 23. How dependent of your actual environment are you? timezonepaths connection string limits timeouts Number of triesAPI Keys
- 25. APC for caching user data Memcache for key/value storage (URI/HTML?) tmpfs/ramfs for all file-based caching
- 28. ...
- 30. THANKS FOR BEING HERE! Please evaluate this presentation! http://goo.gl/P8ZDfc (3 questions only)