PHP NG (PHP 5.7) 性能比PHP5.6 提升近1倍

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PHP NG (PHP 5.7) 性能比PHP5.6 提升近1倍_PHP

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May 31, 2016 pm 07:28 PM

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PHP NG （你要愿意的话叫 PHP 5.7 也行）目前还在 alpha 开发阶段，但已经显示出惊人的性能提升。关键是仍保持对 PHP 5.6 的兼容性。

Dmitry Stogov 在今年1月中旬的首次发布以及5月初的里程碑更新后对 PHP 速度的提升有着越来越多的思路（特别贡献者来自 Xinchen Hui @雪候鸟 , Nikita Popov 等）.

到了7月中旬这些努力终于有了结果，测试表明开发中的版本性能对比 PHP 5.6 有着近乎 1 倍的提升。测试是在渲染 WordPress 3.6 前端页面上进行的。

同样的页面，PHP 5.6 渲染 1000 次耗时 26.756 秒，而 PHP NG 耗时 14.810 秒。这还没结束，你可以通过 http://wiki.php.net/phpng 了解更多目标和备注。

此次性能提升的秘诀在于将近 60% 的 CPU 指令被替换成更高效的代码。PHP 5.6 执行 100 次渲染需要 9,413,106,833 个 CPU 指令，而 PHP NG 只需 3,627,440,773 指令。

因为多数扩展都可支持 PHP NG，因此你可以轻松的构建自己的环境进行测试。因为有大量的计划，因此 PHP NG 今年无望发布稳定版本，希望 2015 年能有稳定的 Beta 甚至是 RC 版本发布。

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