Phoronix PHP 8 Performance Benchmark Report Highlights JIT Gains
Phoronix’s benchmark of PHP 8 (built from the latest Git source) compares it with previous PHP releases, showing modest gains for the stable version but a dramatic 92% speed increase when JIT is enabled, while also revealing mixed results across different test suites due to I/O bottlenecks.
Phoronix published a performance benchmark report for PHP 8, compiling the test version from the latest Git code because the official PHP 8 Alpha 1 release is expected only in mid‑June.
The report notes PHP 8’s major new features, including a JIT compiler, static return types, Union Types 2.0, and attributes.
Benchmarks compare PHP 7.4.6, 7.3.18, 7.2.31, 7.1.33, 7.0.33, 5.6.39, 5.5.38, 5.4.44, and PHP 8 with JIT, all built with identical compilers, configuration files, and system environments.
Results show PHP 8 stable improves performance by about 7% over PHP 7.4, while enabling JIT yields a roughly 92% speed boost compared to PHP 7.4 stable; PHP 8 with JIT is also about five times faster than PHP 5.4.
Micro‑service benchmarks confirm PHP 8.0 is slightly faster than PHP 7.4, and JIT‑enabled PHP 8 outperforms all other versions. However, Phoronix Test Suite self‑tests reveal no clear advantage for PHP 8 (with or without JIT) due to I/O bottlenecks, and rendering/merge tests show limited JIT benefits despite overall gains over older releases.
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