Re: slow X11 frame creation and refresh after occlusion

[Robert Pluim]

>>>>> On Sat, 30 Jan 2021 14:32:28 -0500, Greg Klanderman <gak@klanderman.net> 
>>>>> said:

    Greg> Thanks Robert, no time yet for much investigation on my side, but I
    Greg> can answer your followup questions quickly..

>>>>> On January 27, 2021 Robert Pluim <rpluim@gmail.com> wrote:

    >> Other things to check:

    >> - which font backend are you using? (frame-parameter nil
    >> 'font-backend) will tell you

    Greg> (frame-parameter nil 'font-backend)
    Greg> (xfthb x)

    Greg> any suggestions for settings I can try?

Configure '--with-cairo'. Iʼm hoping that will be more efficient in
terms of loading fonts.

    >> - which version of emacs? emacs-master has a change to reduce the
    >> number of fonts it probes, which is always a killer over a forwarded
    >> X connection

    Greg> didn't find it searching 'git log' a bit can you point me to it?

    Greg> I assume not in this one:

    Greg> (emacs-version)
    Greg> "GNU Emacs 27.1 (build 1, x86_64-pc-linux-gnu, X toolkit, Xaw3d 
scroll bars)
    Greg>  of 2020-12-21, modified by Debian"

Definitely not in there, itʼs master-only:

$ git log --author rpluim@gmail.com --grep font

    commit 20d13e424fb2e7dcc5e6ea1848bca4376d22bab1
    Author: Robert Pluim <rpluim@gmail.com>
    Date:   Fri Sep 11 10:29:24 2020 +0200

        Stop querying for fonts as soon as a match is found