[dev] Cache question

[Duck]

I want to use horde cache in my app. But I miss the possibility to delete 
multiply cache entries at once. 

I think that this could be done to separate cache entry "groups" in differdent 
directories and deleting a cache group will be easy as just empty the 
directory.  

Using directory hierarchies will be welcome even when you have a lot of cache 
entries, which will result as an FS slow down because of so much files in a 
directory.

To ensure backward compatibility the cache keys can be named like 
"<group_name>/<cache_key>". If the "/" don't exists in the key the system 
will act as before.

I don't know it this is the right approach, but mainly I'm not familiar with 
Zend Performance Suite Cache implementetion so don't know how it will support 
something like this.

Duck