如何调整PHP Realpath缓存? [英] How can I tune the PHP realpath cache?

问题描述

最近版本的PHP都有一个文件名缓存，用于了解文件的真实路径，而require_once()和include_once()可以利用它.

Recent versions of PHP have a cache of filenames for knowing the real path of files, and require_once() and include_once() can take advantage of it.

您可以在 php.ini 中设置一个值来设置缓存的大小，但是我不知道如何确定大小.默认值为16k，但是我看不出要使用多少缓存.这些文档含糊不清:

There's a value you can set in your php.ini to set the size of the cache, but I have no idea how to tell what the size should be. The default value is 16k, but I see no way of telling how much of that cache we're using. The docs are vague:

确定realpath缓存的大小由PHP使用.在PHP打开许多文件的系统上，应该增加该值，以反映执行的文件操作的数量.

是的，我可以增加允许的缓存量，并使用ab或其他测试来运行测试，但是我想要的是一些自省的功能，而不仅仅是从远处计时.

Yes, I can jack up the amount of cache allowed, and run tests with ab or some other testing, but I'd like something with a little more introspection than just timing from a distance.

推荐答案

您可能已经发现了这一点，但是对于那些遇到此问题的人，可以使用realpath_cache_size()和realpath_cache_get()找出多少您的网站上正在使用realpath缓存，并相应地调整设置.

You've probably already found this, but for those who come across this question, you can use realpath_cache_size() and realpath_cache_get() to figure out how much of the realpath cache is being used on your site and tune the settings accordingly.

这篇关于如何调整PHP Realpath缓存?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！