From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon@freedesktop.org Subject: [Bug 106175] amdgpu.dc=1 shows performance issues with Xorg compositors when moving windows Date: Tue, 15 Jan 2019 17:52:22 +0000 Message-ID: References: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============0190500673==" Return-path: Received: from culpepper.freedesktop.org (culpepper.freedesktop.org [131.252.210.165]) by gabe.freedesktop.org (Postfix) with ESMTP id 416476EDEF for ; Tue, 15 Jan 2019 17:52:22 +0000 (UTC) In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: dri-devel@lists.freedesktop.org List-Id: dri-devel@lists.freedesktop.org --===============0190500673== Content-Type: multipart/alternative; boundary="15475747422.2F0c89E.21321" Content-Transfer-Encoding: 7bit --15475747422.2F0c89E.21321 Date: Tue, 15 Jan 2019 17:52:22 +0000 MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://bugs.freedesktop.org/ Auto-Submitted: auto-generated https://bugs.freedesktop.org/show_bug.cgi?id=3D106175 --- Comment #98 from Michel D=C3=A4nzer --- (In reply to Brandon Wright from comment #95) > For me, at least, it hiccups regularly every second and introduces > noticeable latency. With dc=3D1 it's smooth Thanks, I was able to reproduce the hiccups with vsynctester.com in windowed Firefox. > and more responsive. Couldn't see a difference there (looking at how much the red dot trails the mouse cursor on vsynctester.com). Ironically, the problem is actually that non-DC can be too responsive, sometimes completing page flips in the same vertical blank period. https://gitlab.freedesktop.org/xorg/driver/xf86-video-amdgpu/merge_requests= /23 fixes it for me. --=20 You are receiving this mail because: You are the assignee for the bug.= --15475747422.2F0c89E.21321 Date: Tue, 15 Jan 2019 17:52:22 +0000 MIME-Version: 1.0 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://bugs.freedesktop.org/ Auto-Submitted: auto-generated

Comme= nt # 98 on bug 10617= 5 from Michel D=C3=A4nzer 
(In reply to Brandon Wright from comment #95)
> For me, at least, it hiccups regularly every sec=
ond and introduces
> noticeable latency. With dc=3D1 it's smooth

Thanks, I was able to reproduce the hiccups with vsynctester.com in windowed
Firefox.

> and more responsive.

Couldn't see a difference there (looking at how much the red dot trails the
mouse cursor on vsynctester.com). Ironically, the problem is actually that
non-DC can be too responsive, sometimes completing page flips in the same
vertical blank period.

https://gitlab.freedesktop.org/xorg/driver/xf86-video-amdgp=
u/merge_requests/23
fixes it for me.

You are receiving this mail because:
  • You are the assignee for the bug.
= --15475747422.2F0c89E.21321-- --===============0190500673== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 Content-Disposition: inline X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KZHJpLWRldmVs IG1haWxpbmcgbGlzdApkcmktZGV2ZWxAbGlzdHMuZnJlZWRlc2t0b3Aub3JnCmh0dHBzOi8vbGlz dHMuZnJlZWRlc2t0b3Aub3JnL21haWxtYW4vbGlzdGluZm8vZHJpLWRldmVsCg== --===============0190500673==--