图片文件,缓存文件等,有必要分很多文件夹吗?-PHP Tutorial-php.cn

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图片文件,缓存文件等,有必要分很多文件夹吗?

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Jun 23, 2016 pm 01:38 PM

Image files

看很多人说,一个文件夹不能超过1000条信息,否则十分浪费资源;
我不太理解;
如果遍历文件,这可能浪费太多资源;
如若给定具体文件路径,不遍历,只读取和修改,这样也十分浪费资源吗?

我的缓存文件夹有10W条缓存HTML; 用复杂算法分很多层目录也难以做到1个文件夹不超过1000条信息. 反而管理比较麻烦.
对缓存文件,只修改,读取,创建. 删除. 具体的路径. 请问这样也会影响性能吗?!

回复讨论(解决方案)

并不是所有的缓存文件都是会经常用到的，你只要缓存那部分有需要的内容就好了，关于一个文件夹下不要超过多少文件的事情，可能跟磁盘对文件大小划分有关系，我有些不记得了，意思是如果文件够多一个浪费一点那么一共加起来就会浪费很多空间。
现在的硬件设施我觉得应该不需要考虑这些东西了.

有些系?，?於一?文件??的文件?是有限制的，另外如果文件??文件?多，list??很慢。

看文件系统。

同一个文件夹下的文件不能重名（不同文件夹下的文件可以重名）
而可以作为文件名的字符是有限的，因此文件名会变得冗长，可读性下降

操作系统访问文件时，需要先读取目录文件，在目录文件中查找所需文件在硬盘中的位置
显然目录文件较小时，找到文件的时间就较短

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