Subject: bug#25197: 26.0.50; notifications-notify is extremely slow

From: Peter Münster <[email-masked]>
Date: Tue, 13 Dec 2016 23:59:59 +0100

Hello,

Since

commit c29071587c64efb30792bd72248d3c791abd9337
Author: Daniel Colascione <[email-masked]>
Date:   Thu Oct 20 20:34:36 2016 -0700
    Add double-buffering support to reduce flicker

notifications-notify is extremely slow, when the notification windows
overlap the emacs window.

Command for testing:

time src/emacs -g 300x100 -Q --eval "(progn (require 'notifications)
             (dotimes (i 20) (notifications-notify :title \"TEST\"))
             (kill-emacs))"

Result before the commit:

real    0m1.820s
user    0m0.668s
sys     0m0.060s

Result after the commit:

real    0m11.782s
user    0m0.636s
sys     0m0.128s

"-g 300x100" or something similar is needed, to get a nearly full-screen
window, so that the notifications overlap the emacs window.

How could I speed up the notifications please?

TIA for any help,
-- 
           Peter