unofficial mirror of emacs-devel@gnu.org 
 help / color / mirror / code / Atom feed
From: Fabrice Popineau <fabrice.popineau@gmail.com>
To: Emacs developers <emacs-devel@gnu.org>
Subject: Is Emacs buffer scroll/redisplay slow?
Date: Sun, 19 Jan 2020 10:34:07 +0100	[thread overview]
Message-ID: <CAFgFV9P+_moxam-hwz_tZFz0pPNMzS1DzvGJs+C+bFqzMubCHQ@mail.gmail.com> (raw)

[-- Attachment #1: Type: text/plain, Size: 449 bytes --]

Hi,

Out of curiosity, I timed 'emacs -Q' scrolling through an elisp buffer: I
started the timer
by hand and scrolled down for 1000 lines and it took 45s on Windows/WSL
and 35s on Windows/native.
This is on a pretty decent laptop (core i7, 32Gb ram, 4k display)
I don't care about the difference here, but overall,
I find it pretty slow. Is there something that could be done to enhance it?
What is the main bottleneck here?

Best regards,

Fabrice

[-- Attachment #2: Type: text/html, Size: 614 bytes --]

             reply	other threads:[~2020-01-19  9:34 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-01-19  9:34 Fabrice Popineau [this message]
2020-01-19 11:51 ` Is Emacs buffer scroll/redisplay slow? Alan Mackenzie
2020-01-19 14:24   ` Fabrice Popineau
2020-01-19 15:28     ` Eli Zaretskii
2020-01-19 15:34       ` Fabrice Popineau
2020-01-19 16:02         ` Eli Zaretskii
2020-01-19 17:15           ` Fabrice Popineau
2020-01-19 22:20     ` Stefan Monnier
2020-01-20  0:23       ` Fabrice Popineau
2020-01-20 13:20         ` Stefan Monnier

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

  List information: https://www.gnu.org/software/emacs/

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=CAFgFV9P+_moxam-hwz_tZFz0pPNMzS1DzvGJs+C+bFqzMubCHQ@mail.gmail.com \
    --to=fabrice.popineau@gmail.com \
    --cc=emacs-devel@gnu.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
Code repositories for project(s) associated with this public inbox

	https://git.savannah.gnu.org/cgit/emacs.git

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).