From: Andrey Orst <andreyorst@gmail.com>
To: Eli Zaretskii <eliz@gnu.org>
Cc: 46350@debbugs.gnu.org
Subject: bug#46350: 28.0.50; touchpad-scrolling-eats-lots-of-cpu-samples
Date: Sun, 7 Feb 2021 20:23:09 +0300 [thread overview]
Message-ID: <CAAKhXoaQz3bpE7MZ8oXe-0rGVcRCVh=w52zjNnanh4UwzU_+qQ@mail.gmail.com> (raw)
In-Reply-To: <8335y9neut.fsf@gnu.org>
On Sat, Feb 6, 2021 at 11:03 PM Eli Zaretskii <eliz@gnu.org> wrote:
>
> > And how many mouse-wheel events Emacs receives in your
> > scenario, anyway?
> >
> > Sorry, how can I check that?
>
> Add a call to 'message' to mwheel-scroll, and have it show a counter
> that counts up?
I've did as you've suggested. When scrolling buffer of 1405 lines from
bottom to the top (while emacs is unresponsive) mwheel-scroll function
seems to be called about ~1351 times. Single fast flick over touchpad
produces ~40 calls to mwheel-scroll.
Adding (sit-for 0) at the start of the function doesn't have any effect.
> What is the size of the buffer that it scrolls almost instantly to
> BOB? How many lines?
1405 lines. I'm testing this on bundled lisp-mode.el
--
Best regards,
Andrey Listopadov
next prev parent reply other threads:[~2021-02-07 17:23 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-06 17:33 bug#46350: 28.0.50; touchpad-scrolling-eats-lots-of-cpu-samples Andrey Orst
2021-02-06 17:59 ` Eli Zaretskii
2021-02-06 18:34 ` Andrey Orst
2021-02-06 18:55 ` Andrey Orst
2021-02-06 19:05 ` Eli Zaretskii
2021-02-06 19:02 ` Eli Zaretskii
2021-02-06 19:47 ` Andrey Orst
2021-02-06 20:03 ` Eli Zaretskii
2021-02-07 17:23 ` Andrey Orst [this message]
2021-02-07 17:49 ` Eli Zaretskii
2021-02-07 18:33 ` Andrey Orst
2021-02-07 18:44 ` Eli Zaretskii
2021-02-07 18:52 ` Andrey Orst
2021-02-07 19:05 ` Eli Zaretskii
2021-02-07 19:37 ` Lars Ingebrigtsen
2021-02-07 19:47 ` Eli Zaretskii
2021-02-07 20:54 ` Lars Ingebrigtsen
2021-02-07 22:16 ` Alan Third
2021-02-07 22:22 ` Andrey Orst
2021-02-07 22:24 ` Alan Third
2021-02-07 22:30 ` Andrey Orst
2021-02-08 10:12 ` Andrey Orst
2021-02-08 14:35 ` Andrey Orst
2021-02-08 15:28 ` Eli Zaretskii
2021-02-08 15:31 ` Andrey Orst
2021-02-08 15:19 ` Eli Zaretskii
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