What is HFPM?

HFPM (High-Frequency Process Management) is a process management mechanism in PHP-FPM optimized for handling a large number of short requests. It allows processing requests with minimal delay and lower system load by maintaining a pool of processes in a ready state. Instead of creating and destroying processes for each request, HFPM supports an active set of worker processes that quickly accept new tasks.

Advantages of HFPM:

• Low latency: Processes are ready to handle requests, minimizing overhead on their creation.
• High throughput: Capable of processing a large number of requests per unit of time.
• Reduced system load: The absence of constant process creation/destruction reduces resource consumption.

Features of HFPM:

• Memory consumption: Active processes consume more memory than processes created on demand.
• Fine-tuning required: Pool parameters (min_spare_servers, max_spare_servers, pm.max_children) require careful selection based on server characteristics and load.

This mode is suitable for high-load web applications with a large number of quick requests.