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: Fri, 15 Jun 2018 14:02:47 +0000 Message-ID: References: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============0264003952==" Return-path: Received: from culpepper.freedesktop.org (culpepper.freedesktop.org [131.252.210.165]) by gabe.freedesktop.org (Postfix) with ESMTP id 357BB6EB3B for ; Fri, 15 Jun 2018 14:02:47 +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 --===============0264003952== Content-Type: multipart/alternative; boundary="15290713672.8b9aaE65D.23622" Content-Transfer-Encoding: 7bit --15290713672.8b9aaE65D.23622 Date: Fri, 15 Jun 2018 14:02:47 +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 #19 from Michel D=C3=A4nzer --- (In reply to David Francis from comment #18) > My hypothesis is that has something to do with the mouse polling rate.=20= =20 What is that hypothesis based on? The kernel is supposed to be able to process any number of DRM_IOCTL_MODE_CURSOR(2) ioctls in parallel with a DRM_IOCTL_MODE_PAGE_FLIP ioctl, without them interfering with each other. Most likely there's an iss= ue in the DC code interfering this. See the patch I referenced in comment 17 f= or an example of what might need to be done to solve this. --=20 You are receiving this mail because: You are the assignee for the bug.= --15290713672.8b9aaE65D.23622 Date: Fri, 15 Jun 2018 14:02:47 +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 # 19 on bug 10617= 5 from Michel D=C3=A4nzer 
(In reply to David Francis from comment #18)
> My hypothesis is that has something to do with t=
he mouse polling rate.  

What is that hypothesis based on?

The kernel is supposed to be able to process any number of
DRM_IOCTL_MODE_CURSOR(2) ioctls in parallel with a DRM_IOCTL_MODE_PAGE_FLIP
ioctl, without them interfering with each other. Most likely there's an iss=
ue
in the DC code interfering this. See the patch I referenced in comment 17 for
an example of what might need to be done to solve this.

You are receiving this mail because:
  • You are the assignee for the bug.
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