#OPcache
Sep 06, 2026
Tuning PHP-FPM and OPcache for High-Concurrency Production: Sizing Process Pools, Eliminating 502/504 Errors, and Preloading
A masterclass in high-performance PHP: mathematically sizing PHP-FPM worker pools, switching to static process management, tuning OPcache bytecode buffers, and setting up the FPM status page.