linux-fsdevel.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Kenny Ho <y2kenny@gmail.com>
To: Daniel Vetter <daniel@ffwll.ch>
Cc: Alexei Starovoitov <alexei.starovoitov@gmail.com>,
	Dave Airlie <airlied@gmail.com>, Kenny Ho <Kenny.Ho@amd.com>,
	Alexander Viro <viro@zeniv.linux.org.uk>,
	Alexei Starovoitov <ast@kernel.org>,
	Daniel Borkmann <daniel@iogearbox.net>,
	Martin KaFai Lau <kafai@fb.com>, Song Liu <songliubraving@fb.com>,
	Yonghong Song <yhs@fb.com>, Andrii Nakryiko <andriin@fb.com>,
	John Fastabend <john.fastabend@gmail.com>,
	KP Singh <kpsingh@chromium.org>, bpf <bpf@vger.kernel.org>,
	Network Development <netdev@vger.kernel.org>,
	Linux-Fsdevel <linux-fsdevel@vger.kernel.org>,
	"open list:CONTROL GROUP (CGROUP)" <cgroups@vger.kernel.org>,
	Alex Deucher <alexander.deucher@amd.com>,
	amd-gfx list <amd-gfx@lists.freedesktop.org>,
	DRI Development <dri-devel@lists.freedesktop.org>,
	Brian Welty <brian.welty@intel.com>
Subject: Re: [RFC] Add BPF_PROG_TYPE_CGROUP_IOCTL
Date: Thu, 6 May 2021 22:06:32 -0400	[thread overview]
Message-ID: <CAOWid-fL0=OM2XiOH+NFgn_e2L4Yx8sXA-+HicUb9bzhP0t8Bw@mail.gmail.com> (raw)
In-Reply-To: <CAKMK7uFEhyJChERFQ_DYFU4UCA2Ox4wTkds3+GeyURH5xNMTCA@mail.gmail.com>

Sorry for the late reply (I have been working on other stuff.)

On Fri, Feb 5, 2021 at 8:49 AM Daniel Vetter <daniel@ffwll.ch> wrote:
>
> So I agree that on one side CU mask can be used for low-level quality
> of service guarantees (like the CLOS cache stuff on intel cpus as an
> example), and that's going to be rather hw specific no matter what.
>
> But my understanding of AMD's plans here is that CU mask is the only
> thing you'll have to partition gpu usage in a multi-tenant environment
> - whether that's cloud or also whether that's containing apps to make
> sure the compositor can still draw the desktop (except for fullscreen
> ofc) doesn't really matter I think.
This is not correct.  Even in the original cgroup proposal, it
supports both mask and count as a way to define unit(s) of sub-device.
For AMD, we already have SRIOV that supports GPU partitioning in a
time-sliced-of-a-whole-GPU fashion.

Kenny

  reply	other threads:[~2021-05-07  2:06 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-10-07 15:23 [RFC] Add BPF_PROG_TYPE_CGROUP_IOCTL Kenny Ho
2020-11-02 19:23 ` Kenny Ho
2020-11-03  5:32   ` Alexei Starovoitov
2020-11-03  5:39     ` Kenny Ho
2020-11-03  5:42       ` Alexei Starovoitov
2020-11-03 19:19         ` Kenny Ho
2020-11-03 21:04           ` Alexei Starovoitov
2020-11-03 22:57             ` Kenny Ho
2020-11-03 23:28               ` Alexei Starovoitov
2021-02-01 14:49                 ` Daniel Vetter
2021-02-01 16:51                   ` Kenny Ho
2021-02-03 11:09                     ` Daniel Vetter
2021-02-03 19:01                       ` Kenny Ho
2021-02-05 13:49                         ` Daniel Vetter
2021-05-07  2:06                           ` Kenny Ho [this message]
2021-05-07  8:59                             ` Daniel Vetter
2021-05-07 15:33                               ` Kenny Ho
2021-05-07 16:13                                 ` Daniel Vetter
2021-05-07 16:19                                   ` Alex Deucher
2021-05-07 16:26                                     ` Daniel Vetter
2021-05-07 16:31                                       ` Alex Deucher
2021-05-07 16:50                                         ` Alex Deucher
2021-05-07 16:54                                           ` Daniel Vetter
2021-05-07 17:04                                             ` Kenny Ho
2021-05-07 19:33                                             ` Tejun Heo
2021-05-07 19:55                                               ` Alex Deucher
2021-05-07 20:59                                                 ` Tejun Heo
2021-05-07 22:30                                                   ` Alex Deucher
2021-05-07 23:45                                                     ` Tejun Heo
2021-05-11 15:48                                                       ` Alex Deucher

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='CAOWid-fL0=OM2XiOH+NFgn_e2L4Yx8sXA-+HicUb9bzhP0t8Bw@mail.gmail.com' \
    --to=y2kenny@gmail.com \
    --cc=Kenny.Ho@amd.com \
    --cc=airlied@gmail.com \
    --cc=alexander.deucher@amd.com \
    --cc=alexei.starovoitov@gmail.com \
    --cc=amd-gfx@lists.freedesktop.org \
    --cc=andriin@fb.com \
    --cc=ast@kernel.org \
    --cc=bpf@vger.kernel.org \
    --cc=brian.welty@intel.com \
    --cc=cgroups@vger.kernel.org \
    --cc=daniel@ffwll.ch \
    --cc=daniel@iogearbox.net \
    --cc=dri-devel@lists.freedesktop.org \
    --cc=john.fastabend@gmail.com \
    --cc=kafai@fb.com \
    --cc=kpsingh@chromium.org \
    --cc=linux-fsdevel@vger.kernel.org \
    --cc=netdev@vger.kernel.org \
    --cc=songliubraving@fb.com \
    --cc=viro@zeniv.linux.org.uk \
    --cc=yhs@fb.com \
    /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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).