Coroutine

The Latency Penalty: PHP 8.5 Application Server I/O Wait Benchmark (2026)

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In our previous benchmark, Swoole finished last in a light I/O workload, challenging its reputation as a performance monster. Readers immediately asked: “Is Swoole really that slow, or did the test simply not play to its strengths?” Today, we answer that question definitively—by putting all four application servers through escalating database latency and watching the … Read more

Swoole vs RoadRunner vs FrankenPHP: Complete PHP 8.5 Application Server Benchmark

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In this Swoole vs RoadRunner vs FrankenPHP PHP 8.5 benchmark, we put four application servers to the test. In our previous comparison, we evaluated PHP-FPM, RoadRunner, and FrankenPHP. Readers immediately asked: “Where’s Swoole?” Today, we answer that question by completing the most comprehensive PHP 8.5 application server comparison ever published.