From: Eli Zaretskii <eliz@gnu.org>
To: emacs-devel@gnu.org,Aaron Jensen <aaronjensen@gmail.com>
Cc: Alan Third <alan@idiocy.org>,
YAMAMOTO Mitsuharu <mituharu@math.s.chiba-u.ac.jp>
Subject: Re: macOS metal rendering engine in mac port
Date: Tue, 25 May 2021 08:41:45 +0300 [thread overview]
Message-ID: <279F3242-E556-42C9-8489-4DD8F538938E@gnu.org> (raw)
In-Reply-To: <CAHyO48yxxdURvZSzrWn-F+6wKwHgpwcoXD7_w0NmWLcfBKkUkw@mail.gmail.com>
On May 25, 2021 7:42:45 AM GMT+03:00, Aaron Jensen <aaronjensen@gmail.com> wrote:
> On Mon, May 24, 2021 at 7:31 PM Eli Zaretskii <eliz@gnu.org> wrote:
> >
> > No mystery: face merging is just a small fraction of what redisplay
> > does, so the twofold increase in face merging shouldn't slow down
> > redisplay too much.
>
> Apple removed the text export feature of Instruments. Sigh. I've
> attached screenshots of a much more expanded profile. It's not just
> the merge_faces, it's slower in multiple places.
>
> 2060ms slower in total (40% slower):
> 444ms in maybe_produce_line_number, only 227ms of which is merge_faces
> 576ms more in drawing glyphs (78% slower)
> 490ms more copying surface contents (18% slower)
What are you comparing? When line numbers are off, maybe_produce_line_number shouldn't be called at all, and so shouldn't the merge_faces calls it makes.
> With emacs -Q, the merge_faces tax isn't very high. It's just 10% of
> the slowdown I saw in this benchmark. It's just that that tax scales
> with the more faces I have, so it becomes a bigger chunk.
That's a general problem with faces, which will hopefully be fixed soon. Nothing to do specifically with line-number display.
> Alan, I could understand why drawing glyphs would take longer (there's
> more to draw when there are line numbers),
??? Because line numbers add ~3 glyphs to each line? How can this explain any significant slowdown? Do you see something similar if you add 3 characters to every line and benchmark the scroll?
next prev parent reply other threads:[~2021-05-25 5:41 UTC|newest]
Thread overview: 155+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-21 1:17 macOS metal rendering engine in mac port Aaron Jensen
2021-05-21 6:07 ` Eli Zaretskii
2021-05-21 6:13 ` Aaron Jensen
2021-05-21 7:35 ` Alan Third
2021-05-21 15:27 ` Aaron Jensen
2021-05-21 17:39 ` Alan Third
[not found] ` <CAHyO48ys2sYxbZuho1NutqNAM-z0tTaKwuR1TxUuhMZG5XJ0aA@mail.gmail.com>
2021-05-22 16:01 ` Aaron Jensen
2021-05-22 16:30 ` Eli Zaretskii
2021-05-22 16:46 ` Eli Zaretskii
2021-05-22 17:00 ` Eli Zaretskii
2021-05-22 18:44 ` Alan Third
2021-05-22 18:59 ` Aaron Jensen
2021-05-22 19:57 ` Alan Third
2021-05-22 21:20 ` Aaron Jensen
2021-05-23 11:47 ` Alan Third
2021-05-23 16:09 ` Stefan Monnier
2021-05-23 16:13 ` Aaron Jensen
2021-05-23 17:06 ` Aaron Jensen
2021-05-23 17:21 ` Eli Zaretskii
2021-05-23 18:38 ` Aaron Jensen
2021-05-23 18:48 ` Eli Zaretskii
2021-05-23 19:49 ` Aaron Jensen
2021-05-24 0:00 ` Aaron Jensen
2021-05-24 0:04 ` Aaron Jensen
[not found] ` <CAHyO48z1m5aeqwqmZds3yuYiJ=rdHZ79JPVyuh1kHVU0Rw47EA@mail.gmail.com>
2021-05-24 6:51 ` Aaron Jensen
2021-05-24 7:37 ` Eli Zaretskii
2021-05-24 8:07 ` Aaron Jensen
2021-05-24 8:48 ` Eli Zaretskii
2021-05-24 15:32 ` Aaron Jensen
2021-05-24 16:28 ` Eli Zaretskii
2021-05-24 16:31 ` Aaron Jensen
2021-05-24 16:43 ` Eli Zaretskii
2021-05-24 17:58 ` Aaron Jensen
2021-05-24 18:03 ` Eli Zaretskii
2021-05-24 18:16 ` Alan Third
2021-05-24 18:18 ` Aaron Jensen
2021-05-24 18:54 ` Eli Zaretskii
2021-05-24 19:07 ` Aaron Jensen
2021-05-24 19:21 ` Eli Zaretskii
2021-05-24 19:27 ` Eli Zaretskii
2021-05-24 20:21 ` Aaron Jensen
2021-05-25 2:31 ` Eli Zaretskii
[not found] ` <CAHyO48yxxdURvZSzrWn-F+6wKwHgpwcoXD7_w0NmWLcfBKkUkw@mail.gmail.com>
2021-05-25 5:41 ` Eli Zaretskii [this message]
2021-05-25 6:26 ` Aaron Jensen
2021-05-25 12:16 ` Eli Zaretskii
2021-05-25 12:23 ` Alan Third
2021-05-25 12:56 ` Alan Third
2021-05-25 13:00 ` Eli Zaretskii
2021-05-25 13:07 ` Alan Third
2021-05-25 13:18 ` Eli Zaretskii
2021-05-25 13:34 ` Alan Third
2021-05-25 13:47 ` Eli Zaretskii
2021-05-25 13:50 ` Alan Third
2021-05-27 16:55 ` Eli Zaretskii
2021-05-27 17:40 ` Alan Third
2021-05-27 17:47 ` Eli Zaretskii
2021-05-27 17:51 ` Alan Third
2021-05-27 17:53 ` Aaron Jensen
2021-05-27 18:59 ` Eli Zaretskii
2021-05-27 19:02 ` Aaron Jensen
2021-05-27 19:22 ` Eli Zaretskii
2021-05-27 19:37 ` Aaron Jensen
2021-05-28 17:58 ` Eli Zaretskii
2021-05-28 18:21 ` Aaron Jensen
2021-05-28 19:00 ` Eli Zaretskii
2021-05-25 15:35 ` Aaron Jensen
2021-05-25 17:34 ` Eli Zaretskii
2021-05-25 17:48 ` Aaron Jensen
2021-05-25 9:01 ` Alan Third
2021-05-24 12:47 ` Eli Zaretskii
2021-05-24 16:10 ` Aaron Jensen
2021-05-23 21:20 ` Alan Third
2021-05-23 22:04 ` Alan Third
2021-05-23 22:12 ` Alan Third
2021-05-23 21:08 ` Alan Third
2021-05-23 22:37 ` Aaron Jensen
2021-05-24 9:01 ` Alan Third
2021-05-25 16:31 ` Aaron Jensen
2021-05-26 0:32 ` Aaron Jensen
2021-05-26 6:23 ` Alan Third
2021-05-26 6:26 ` Aaron Jensen
2021-05-26 7:35 ` Aaron Jensen
2021-05-28 17:39 ` Aaron Jensen
2021-05-28 18:32 ` Alan Third
2021-05-28 19:00 ` Aaron Jensen
2021-05-28 19:29 ` Alan Third
2021-05-28 22:07 ` Aaron Jensen
2021-05-29 6:07 ` Eli Zaretskii
2021-05-29 7:01 ` Aaron Jensen
2021-05-29 7:05 ` Eli Zaretskii
2021-05-29 8:52 ` Aaron Jensen
2021-05-29 9:06 ` Aaron Jensen
2021-05-29 9:21 ` Eli Zaretskii
2021-05-29 9:35 ` Alan Third
2021-05-29 9:41 ` Eli Zaretskii
2021-05-29 16:18 ` Aaron Jensen
2021-05-29 16:49 ` Eli Zaretskii
2021-05-29 17:05 ` Aaron Jensen
2021-05-29 17:20 ` Aaron Jensen
2021-05-29 17:43 ` Eli Zaretskii
2021-05-29 18:00 ` Dmitry Gutov
2021-05-29 18:15 ` Eli Zaretskii
2021-05-29 18:52 ` Dmitry Gutov
2021-05-29 19:06 ` Stefan Monnier
2021-05-29 19:10 ` Eli Zaretskii
2021-05-29 17:34 ` Eli Zaretskii
2021-05-29 18:22 ` Aaron Jensen
2021-05-29 18:27 ` Aaron Jensen
2021-05-29 18:40 ` Eli Zaretskii
2021-05-29 19:30 ` Aaron Jensen
2021-05-29 20:03 ` Eli Zaretskii
2021-05-29 21:03 ` Aaron Jensen
2021-05-29 21:05 ` Aaron Jensen
2021-05-29 21:40 ` Aaron Jensen
2021-05-30 4:44 ` Aaron Jensen
2021-05-30 7:01 ` Eli Zaretskii
2021-05-30 6:27 ` Eli Zaretskii
2021-05-30 7:04 ` Aaron Jensen
2021-05-30 9:36 ` Eli Zaretskii
2021-05-30 15:46 ` Aaron Jensen
2021-05-30 16:03 ` Eli Zaretskii
2021-05-30 16:16 ` Aaron Jensen
2021-05-30 16:35 ` Eli Zaretskii
2021-05-30 17:00 ` Aaron Jensen
2021-05-30 17:18 ` Eli Zaretskii
2021-05-30 23:59 ` Aaron Jensen
2021-05-31 2:28 ` Eli Zaretskii
2021-05-31 2:30 ` Aaron Jensen
2021-06-03 21:42 ` Alan Third
2021-06-03 21:43 ` Aaron Jensen
2021-09-15 13:16 ` Aaron Jensen
2021-09-15 19:30 ` Illia Ostapyshyn
2021-09-15 19:54 ` Alan Third
2021-09-16 15:59 ` Y. E. via Emacs development discussions.
2021-09-17 17:31 ` Alan Third
2021-09-17 17:43 ` Aaron Jensen
2021-09-18 5:42 ` Y. E. via Emacs development discussions.
2021-09-20 21:22 ` Illia Ostapyshyn
2021-09-21 7:22 ` Y. E. via Emacs development discussions.
2021-09-21 18:48 ` Alan Third
2021-09-27 10:07 ` Alan Third
2021-10-04 14:58 ` Aaron Jensen
2021-10-25 19:39 ` Illia Ostapyshyn
2021-10-26 12:16 ` Alan Third
2021-10-26 13:26 ` Aaron Jensen
2021-09-16 10:01 ` Rudolf Adamkovič
2021-05-30 6:22 ` Eli Zaretskii
2021-05-29 9:12 ` Alan Third
2021-05-29 9:26 ` Eli Zaretskii
2021-05-29 9:32 ` Alan Third
2021-05-29 9:37 ` Eli Zaretskii
2021-05-29 9:39 ` Eli Zaretskii
2021-05-29 9:44 ` Alan Third
2021-05-29 14:12 ` Alan Third
2021-05-23 23:32 ` Tim Cross
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