PHP OPCache, Realpath Cache and Preloading

Explore PHP performance optimization techniques in this conference talk from PHP UK 2020. Dive into PHP-FPM, shared memory, and latency comparisons before delving into the Realpath Cache and its impact on application speed. Learn about the OPCache Optimizer, interned strings, and memory management strategies. Discover deployment techniques for Opcache priming and investigate the potential of PHP preloading. Examine real-world benchmarks, discuss common preloading issues, and gain insights into overall PHP performance enhancement. Conclude with a look at Elastic Stack implementation at Combell, providing a comprehensive overview of advanced PHP optimization strategies for faster, more efficient applications.

Intro
PHP-FPM
Shared memory???
Latency Comparison Numbers (-2012)
Realpath Cache
Throwaway language
Vulcan Logic Dumper
OPCache Optimizer
Interned strings
Wasted memory
Opcache restarts
PHPArch Opcache article
Disaster Recovery Scenarios
php.net/manual/en/opcache.configuration.php
Opcache Priming / Deployment Strategies
Preloading in the wild
Composer benchmarks
Preloading issues
Preload resources
PHP Performance
Elastic Stack @ Combell