Subject: Re: bug#18958: 25.0.50; auto-revert-mode reacts slowly even if using an event-driven backend

From: Michael Albinus <[email-masked]>
Date: Sun, 22 Feb 2015 10:53:03 +0100

Dima Kogan <[email-masked]> writes:

> Hi. I just tested auto-revert-mode with gfilenotify, and it does appear
> to work. Thank you very much for merging those patches!

I'm marking this bug as closed.

> In a perfect world, this 1-second delay would be removed upstream, and
> we'd use gfilenotify for everything. In the meantime, is gfilenotify
> better in any way on Linux? If the notifications are unavailable for
> some reason (network-mounted file for instance), then emacs simply
> decays to the normal polled notifications, right?

You mean auto-revert, right? And yes, if `file-notify-add-watch' doesn't
return a proper watch descriptor, auto-revert falls back to its polling
mode.

glib is said to use also polling for file systems where you don't have
native file notification support. This would make it superior to inotify
for mounted filesystems, and alike.

Best regards, Michael.