Is it a bug in Gio::FileMonitor?

[Владимир <cl333r gmail com>]

Hi,
I've been told on the gtkmm mailing lists that it's a glib/gio issue (or feature) so I should ask here because gtkmm is just "a thin wrapper".

I found that Gio::FileMonitor reports changes (like 
created/deleted/etc) to files with a delay of around 1 to 2 seconds and 
its method set_rate_limit() doesn't make a difference.
I'm wondering 
whether it's a bug or a feature?

Also, I tried Linux's "inotify" and it works well, that is, it 
reports changes instantly.