Re: Memory again

[Eli Zaretskii]

> Date: Sat, 26 Nov 2011 15:58:49 +0100
> From: Carsten Mattner <address@hidden>
> Cc: address@hidden
> 
> Does emacs fear the memory may be used by someone else
> and hold onto what it claimed?

It doesn't, or at least shouldn't.  When enough memory has been
reclaimed by GC, it should give it away to the system.  At least on
some systems, I actually see that in action, after killing a large
buffer.

> Restoring the directory made emacs realize the "file has changed on
> disk". Is this checked via a hash/checksum or does emacs carry along
> more than that?

It remembers the last time stamp of the file/directory.