Proposal to report GPU private memory allocations with sysfs nodes [plain text version]

[Pekka Paalanen]

On Thu, 31 Oct 2019 13:57:00 -0400
Kenny Ho <y2kenny at gmail.com> wrote:

> Hi Yiwei,
> 
> This is the latest series:
> https://patchwork.kernel.org/cover/11120371/
> 
> (I still need to reply some of the feedback.)
> 
> Regards,
> Kenny
> 
> On Thu, Oct 31, 2019 at 12:59 PM Yiwei Zhang <zzyiwei at google.com> wrote:
> >
> > Hi Kenny,
> >
> > Thanks for the info. Do you mind forwarding the existing discussion to me or have me cc'ed in that thread?
> >
> > Best,
> > Yiwei
> >
> > On Wed, Oct 30, 2019 at 10:23 PM Kenny Ho <y2kenny at gmail.com> wrote:  
> >>
> >> Hi Yiwei,
> >>
> >> I am not sure if you are aware, there is an ongoing RFC on adding drm
> >> support in cgroup for the purpose of resource tracking.  One of the
> >> resource is GPU memory.  It's not exactly the same as what you are
> >> proposing (it doesn't track API usage, but it tracks the type of GPU
> >> memory from kmd perspective) but perhaps it would be of interest to
> >> you.  There are no consensus on it at this point.

Hi Yiwei,

I'd like to point out an effort to have drivers label BOs for debugging
purposes: https://lists.freedesktop.org/archives/dri-devel/2019-October/239727.html

I don't know if it would work, but an obvious idea might be to use
those labels for tracking the kinds of buffers - a piece of UAPI which I
believe you are still missing.


Thanks,
pq
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