bug#58634: Long delay with blank screen whilst loading desktop at emacs startup

[Alan Mackenzie]

Hello, Eli.

On Fri, Oct 21, 2022 at 18:23:16 +0300, Eli Zaretskii wrote:
> > Date: Fri, 21 Oct 2022 14:15:16 +0000
> > Cc: juri@linkov.net, 58634@debbugs.gnu.org
> > From: Alan Mackenzie <acm@muc.de>

> > > >     Restoring buffers: 127/166

> > > > as we restore the buffers.  We already count the buffers as we load
> > > > them.

> > > This will slow down the session restoration, so I'd rather avoid it.

> > I've implemented it, and timed it.  With the progress reporting enabled,
> > it takes 0.2% longer than with it disabled.  This is negligible.

> In your case, maybe.

Yes.  Even if that difference was ten times as long, or even a hundred
times as long, it would still be insignificant.  If it proves to be a
hindrance, it can always be disabled by a boolean defcustom.

> I'm against adding this kind of trace.

Yes, that's clear, but you haven't suggested anything better.  Emacs
freezing for large portions of a minute, or even longer, is not a good
thing.

-- 
Alan Mackenzie (Nuremberg, Germany).