PHP-FPM Tuner

PHP-FPM Tuner analyzes inputs such as available_memory_mb, cpu_cores, php_memory_limit_mb, request_per_sec, and average_latency_ms to derive safe worker counts and pool configuration. It supports dynamic, ondemand, and static PM modes and outputs concrete targets for max_children, start_servers, and spare servers.
Calculation approach uses memory-based estimation: per_worker_mem_mb is bounded by a realistic range derived from php_memory_limit_mb and system overhead. Max_children is computed by dividing effective memory by per_worker_mem_mb with safety margins. Concurrency targets are derived from request_per_sec and latency, guiding PM selection.
Users include DevOps, site reliability engineers, and backend developers deploying PHP apps on Linux. Unique value lies in combining memory-aware estimation with PM mode guidance, auto-generating rules for php-fpm.conf, and surfacing actionable risk notes without requiring manual math.
Core features include input validation, auto-suggested pool_type, recommended values for max_requests and process management, and clear outputs. Use cases include scaling for traffic spikes, upgrading hardware, or migrating to higher concurrency while respecting memory constraints.