Re: [RFC v4 2/8] cgroup: gpu: Add a cgroup controller for allocator attribution of GPU memory

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To: "T.J. Mercier" <tjmercier@xxxxxxxxxx>
Subject: Re: [RFC v4 2/8] cgroup: gpu: Add a cgroup controller for allocator attribution of GPU memory
From: Tejun Heo <tj@xxxxxxxxxx>
Date: Tue, 29 Mar 2022 06:59:43 -1000
Cc: David Airlie <airlied@xxxxxxxx>, Daniel Vetter <daniel@xxxxxxxx>, Maarten Lankhorst <maarten.lankhorst@xxxxxxxxxxxxxxx>, Maxime Ripard <mripard@xxxxxxxxxx>, Thomas Zimmermann <tzimmermann@xxxxxxx>, Jonathan Corbet <corbet@xxxxxxx>, Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>, Arve Hjønnevåg <arve@xxxxxxxxxxx>, Todd Kjos <tkjos@xxxxxxxxxxx>, Martijn Coenen <maco@xxxxxxxxxxx>, Joel Fernandes <joel@xxxxxxxxxxxxxxxxx>, Christian Brauner <brauner@xxxxxxxxxx>, Hridya Valsaraju <hridya@xxxxxxxxxx>, Suren Baghdasaryan <surenb@xxxxxxxxxx>, Sumit Semwal <sumit.semwal@xxxxxxxxxx>, Christian König <christian.koenig@xxxxxxx>, Benjamin Gaignard <benjamin.gaignard@xxxxxxxxxx>, Liam Mark <lmark@xxxxxxxxxxxxxx>, Laura Abbott <labbott@xxxxxxxxxx>, Brian Starkey <Brian.Starkey@xxxxxxx>, John Stultz <john.stultz@xxxxxxxxxx>, Zefan Li <lizefan.x@xxxxxxxxxxxxx>, Johannes Weiner <hannes@xxxxxxxxxxx>, Shuah Khan <shuah@xxxxxxxxxx>, kaleshsingh@xxxxxxxxxx, Kenny.Ho@xxxxxxx, mkoutny@xxxxxxxx, skhan@xxxxxxxxxxxxxxxxxxx, dri-devel@xxxxxxxxxxxxxxxxxxxxx, linux-doc@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, linux-media@xxxxxxxxxxxxxxx, linaro-mm-sig@xxxxxxxxxxxxxxxx, cgroups@xxxxxxxxxxxxxxx, linux-kselftest@xxxxxxxxxxxxxxx
In-reply-to: <20220328035951.1817417-3-tjmercier@google.com>
References: <20220328035951.1817417-1-tjmercier@google.com> <20220328035951.1817417-3-tjmercier@google.com>

Hello,

On Mon, Mar 28, 2022 at 03:59:41AM +0000, T.J. Mercier wrote:
> The API/UAPI can be extended to set per-device/total allocation limits
> in the future.

This total thing kinda bothers me. Can you please provide some concrete
examples of how this and per-device limits would be used?

Thanks.

-- 
tejun

Follow-Ups:
- Re: [RFC v4 2/8] cgroup: gpu: Add a cgroup controller for allocator attribution of GPU memory
  - From: T.J. Mercier

References:
- [RFC v4 0/8] Proposal for a GPU cgroup controller
  - From: T.J. Mercier
- [RFC v4 2/8] cgroup: gpu: Add a cgroup controller for allocator attribution of GPU memory
  - From: T.J. Mercier

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