File count limits?

[heathdutton]

I noticed that unlike the File cache, there is no folder structure created for the files. Does this mean there may be an IO overhead when caching millions of key/value pairs?

[elcobvg]

There are no files, it's an in-memory cache

[heathdutton]

Uhm... what? This library works by creating files that the opcache engine can load into memory. Similar to other cache engines used in Symfony. These files look like this:

My concern is that they are all at a single folder level.

[elcobvg]

You're right. Though as you say, the files are loaded into memory. If you are dealing with millions of key/value pairs which won't all fit in available memory, there might be IO overhead to consider. I have never tested that, though. Creating subfolders might help, but I have very little time to work on any open source stuff at the moment.