All of lore.kernel.org
 help / color / mirror / Atom feed
From: "Michel Dänzer" <michel@daenzer.net>
To: "Marek Olšák" <maraeo@gmail.com>,
	dri-devel <dri-devel@lists.freedesktop.org>,
	"ML Mesa-dev" <mesa-dev@lists.freedesktop.org>,
	"Alex Deucher" <alexdeucher@gmail.com>,
	"Christian König" <ckoenig.leichtzumerken@gmail.com>,
	"Daniel Vetter" <daniel@ffwll.ch>,
	"Dave Airlie" <airlied@gmail.com>,
	"Jason Ekstrand" <jason@jlekstrand.net>,
	"Bas Nieuwenhuizen" <bas@basnieuwenhuizen.nl>
Subject: Re: Linux Graphics Next: Userspace submission update
Date: Tue, 1 Jun 2021 11:02:14 +0200	[thread overview]
Message-ID: <e7cb9833-1044-0426-5ce4-5b5fc32a3603@daenzer.net> (raw)
In-Reply-To: <CAAxE2A4XS2mCXOdvxm1ZAhG2OY9w1P0X2E1ac1TXNFKDekog5g@mail.gmail.com>

On 2021-05-27 11:51 p.m., Marek Olšák wrote:
> 
> 3) Compositors (and other privileged processes, and display flipping) can't trust imported/exported fences. They need a timeout recovery mechanism from the beginning, and the following are some possible solutions to timeouts:
> 
> a) use a CPU wait with a small absolute timeout, and display the previous content on timeout
> b) use a GPU wait with a small absolute timeout, and conditional rendering will choose between the latest content (if signalled) and previous content (if timed out)
> 
> The result would be that the desktop can run close to 60 fps even if an app runs at 1 fps.

FWIW, this is working with
https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1880 , even with implicit sync (on current Intel GPUs; amdgpu/radeonsi would need to provide the same dma-buf poll semantics as other drivers and high priority GFX contexts via EGL_IMG_context_priority which can preempt lower priority ones).


-- 
Earthling Michel Dänzer               |               https://redhat.com
Libre software enthusiast             |             Mesa and X developer

  parent reply	other threads:[~2021-06-01  9:02 UTC|newest]

Thread overview: 50+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-05-27 21:51 Linux Graphics Next: Userspace submission update Marek Olšák
2021-05-28 14:41 ` Christian König
2021-05-28 22:25   ` Marek Olšák
2021-05-29  3:33     ` Marek Olšák
2021-05-31  8:25       ` Christian König
2021-06-01  9:02 ` Michel Dänzer [this message]
2021-06-01 10:21   ` Christian König
2021-06-01 10:49     ` Michel Dänzer
2021-06-01 12:10       ` [Mesa-dev] " Christian König
2021-06-01 12:30         ` Daniel Vetter
2021-06-01 12:51           ` Christian König
2021-06-01 13:01             ` Marek Olšák
2021-06-01 13:24               ` Michel Dänzer
2021-06-02  8:57             ` Daniel Stone
2021-06-02  9:34               ` Marek Olšák
2021-06-02  9:38                 ` Marek Olšák
2021-06-02 18:48                   ` Daniel Vetter
2021-06-02 18:52                     ` Christian König
2021-06-02 19:19                       ` Daniel Vetter
2021-06-04  7:00                         ` Christian König
2021-06-04  8:57                           ` Daniel Vetter
2021-06-04 11:27                             ` Christian König
2021-06-09 13:19                               ` Daniel Vetter
2021-06-09 13:58                                 ` Christian König
2021-06-09 18:31                                   ` Daniel Vetter
2021-06-10 15:59                                     ` Marek Olšák
2021-06-10 16:33                                       ` Christian König
2021-06-14 17:10                                         ` Marek Olšák
2021-06-14 17:13                                           ` Christian König
2021-06-17 16:48                                             ` Daniel Vetter
2021-06-17 18:28                                               ` Marek Olšák
2021-06-17 19:04                                                 ` Daniel Vetter
2021-06-17 19:23                                                   ` Marek Olšák
2021-06-03  3:16                     ` Marek Olšák
2021-06-03  7:47                       ` Daniel Vetter
2021-06-03  8:20                         ` Marek Olšák
2021-06-03 10:03                           ` Daniel Vetter
2021-06-03 10:55                             ` Marek Olšák
2021-06-03 11:22                               ` Daniel Vetter
2021-06-03 17:52                                 ` Marek Olšák
2021-06-03 19:18                                   ` Daniel Vetter
2021-06-04  5:26                                     ` Marek Olšák
2021-06-02  9:44               ` Christian König
2021-06-02  9:58                 ` Marek Olšák
2021-06-02 10:06                   ` Christian König
2021-06-01 13:18         ` Michel Dänzer
2021-06-01 17:39           ` Michel Dänzer
2021-06-01 17:42           ` Daniel Stone
2021-06-02  8:09       ` Michel Dänzer
2021-06-02 19:20         ` Daniel Vetter

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=e7cb9833-1044-0426-5ce4-5b5fc32a3603@daenzer.net \
    --to=michel@daenzer.net \
    --cc=airlied@gmail.com \
    --cc=alexdeucher@gmail.com \
    --cc=bas@basnieuwenhuizen.nl \
    --cc=ckoenig.leichtzumerken@gmail.com \
    --cc=daniel@ffwll.ch \
    --cc=dri-devel@lists.freedesktop.org \
    --cc=jason@jlekstrand.net \
    --cc=maraeo@gmail.com \
    --cc=mesa-dev@lists.freedesktop.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.