caching of file information?

[Kai Großjohann]

Thanks to Lothar who points out that rcp.el transfers 10k to open an
empty file.  That's quite a bit of stuff.  I had never thought it
would be this much.

So, there seems to be a need for caching.  But what data should we be
caching, and for how long?

One idea which crossed my mind is to use caching for one command, ie
to put rcp-empty-cache into post-command-hook.  This should be pretty
safe from stale cache contents, but is it also useful?

kai
-- 
Beware of flying birch trees.