From: Dmitry Gutov <dgutov@yandex.ru>
To: Eli Zaretskii <eliz@gnu.org>
Cc: npostavs@users.sourceforge.net, 28695@debbugs.gnu.org, bryan@bryan.sh
Subject: bug#28695: 26.0.60; Rendering lag spikes caused by double-buffering on Linux
Date: Mon, 9 Oct 2017 16:53:18 +0300 [thread overview]
Message-ID: <859fe715-e455-128d-5fca-6f2df4ad0eaf@yandex.ru> (raw)
In-Reply-To: <83376vv0gm.fsf@gnu.org>
On 10/7/17 11:14 AM, Eli Zaretskii wrote:
> Can some of you use a tool like perf to see whether the time taken by
> XdbeSwapBuffers (called from xterm.c:show_back_buffer) indeed grows
> significantly when going from the 2K class of resolutions to the 4K
> class? And if it isn't XdbeSwapBuffers, then what takes most of the
> time which causes that "stutter"?
With some pointers on how to use perf, I'd be happy to do that (or even
without, if you're willing to wait).
But I'm not seeing a qualitative difference between a 4K fullscreen
Emacs, a half-screen Emacs, or even Emacs with window resized further
down: there are still minor stutters here. So I'm probably not the best
person for this experiment.
next prev parent reply other threads:[~2017-10-09 13:53 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-10-04 3:10 bug#28695: 26.0.60; Rendering lag spikes caused by double-buffering on Linux Bryan Gilbert
2017-10-04 7:53 ` Eli Zaretskii
2017-10-04 9:04 ` martin rudalics
2017-10-04 9:32 ` Eli Zaretskii
2017-10-04 11:21 ` Bryan Gilbert
2017-10-04 11:36 ` Eli Zaretskii
2017-10-04 12:02 ` Bryan Gilbert
2017-10-04 12:31 ` Eli Zaretskii
2017-10-05 13:36 ` Dmitry Gutov
2017-10-05 14:01 ` Eli Zaretskii
2017-10-05 14:02 ` Noam Postavsky
2017-10-07 7:53 ` Dmitry Gutov
2017-10-07 8:14 ` Eli Zaretskii
2017-10-09 13:53 ` Dmitry Gutov [this message]
2017-10-09 14:03 ` Eli Zaretskii
2017-10-15 22:55 ` Dmitry Gutov
2017-10-16 2:30 ` Eli Zaretskii
2017-10-26 23:19 ` Dmitry Gutov
2017-10-28 9:33 ` Eli Zaretskii
2017-10-28 21:47 ` bug#28695: 26.0.60; Rendering lag spikes caused by double-buffering on GNU/Linux Richard Stallman
2017-10-05 14:26 ` bug#28695: 26.0.60; Rendering lag spikes caused by double-buffering on Linux Bryan Gilbert
2022-04-23 13:46 ` Lars Ingebrigtsen
2022-05-22 11:28 ` Lars Ingebrigtsen
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