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Nginx + PHP + MySQL: Exact Formulas to Unlock 5x Concurrency Without Crashes

Unoptimized Nginx + PHP + MySQL setups routinely spike to 100% CPU at 1,000 RPS, wasting 80% of RAM. These calculations fix that — fast.

Priya Sundaram 📅 Apr 03, 2026 ⏱️ 3 min read 👁️ 2 views
Nginx PHP-FPM MySQL optimization formulas and server scaling examples

⚡ Key Takeaways

  • Match Nginx workers to CPU cores for 4x connection capacity.
  • PHP max_children = free RAM / avg process RSS — prevents OOM kills.
  • MySQL buffer at 60% RAM crushes disk I/O, boosts queries 10x.

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Priya Sundaram
Written by

Priya Sundaram

Hardware and infrastructure reporter. Tracks GPU wars, chip design, and the compute economy.

#LEMP stack #lemb-stack #mysql #mysql innodb #nginx #nginx optimization #parameter-tuning #php-fpm #php-fpm tuning #server-optimization

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Originally reported by dev.to

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