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charset="Windows-1252" Content-Transfer-Encoding: quoted-printable [AMD Official Use Only] The format is simple: : % we also have entries for the memory mapped: mem : KiB On my submission https://lists.freedesktop.org/archives/amd-gfx/2021-May/06= 3149.html I added a python script to print out the info. It has a CPU usage= lower that top, for example. To be absolutely honest, I agree that there is an overhead, but It might no= t be as much as you fear. ________________________________ From: Tvrtko Ursulin Sent: Monday, May 17, 2021 9:00 AM To: Nieto, David M ; Daniel Vetter ; = Koenig, Christian Cc: Alex Deucher ; Intel Graphics Development ; Maling list - DRI developers Subject: Re: [PATCH 0/7] Per client engine busyness On 17/05/2021 15:39, Nieto, David M wrote: > [AMD Official Use Only] > > > Maybe we could try to standardize how the different submission ring > usage gets exposed in the fdinfo? We went the simple way of just > adding name and index, but if someone has a suggestion on how else we > could format them so there is commonality across vendors we could just > amend those. Could you paste an example of your format? Standardized fdinfo sounds good to me in principle. But I would also like people to look at the procfs proposal from Chris, - link to which I have pasted elsewhere in the thread. Only potential issue with fdinfo I see at the moment is a bit of an extra cost in DRM client discovery (compared to my sysfs series and also procfs RFC from Chris). It would require reading all processes (well threads, then maybe aggregating threads into parent processes), all fd symlinks, and doing a stat on them to figure out which ones are DRM devices= . Btw is DRM_MAJOR 226 consider uapi? I don't see it in uapi headers. > I=92d really like to have the process managers tools display GPU usage > regardless of what vendor is installed. Definitely. Regards, Tvrtko --_000_BYAPR12MB28409E25DEFD3DD620E596ABF42D9BYAPR12MB2840namp_ Content-Type: text/html; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable

[AMD Official Use Only]


The format is simple:

<ringname><index>: <XXX.XX> %

we also have entries for the memory mapped:
mem <ttm pool> : <size> KiB

On my submission https://lists.freedesktop.org= /archives/amd-gfx/2021-May/063149.html I added a python script to = print out the info. It has a CPU usage lower that top, for example.

To be absolutely honest, I agree that there is an overhead, but It might no= t be as much as you fear.
From: Tvrtko Ursulin <tv= rtko.ursulin@linux.intel.com>
Sent: Monday, May 17, 2021 9:00 AM
To: Nieto, David M <David.Nieto@amd.com>; Daniel Vetter <da= niel@ffwll.ch>; Koenig, Christian <Christian.Koenig@amd.com>
Cc: Alex Deucher <alexdeucher@gmail.com>; Intel Graphics Devel= opment <Intel-gfx@lists.freedesktop.org>; Maling list - DRI developer= s <dri-devel@lists.freedesktop.org>
Subject: Re: [PATCH 0/7] Per client engine busyness
 

On 17/05/2021 15:39, Nieto, David M wrote:
> [AMD Official Use Only]
>
>
> Maybe we could try to standardize how the different submission ring >   usage gets exposed in the fdinfo? We went the simple way o= f just
> adding name and index, but if someone has a suggestion on how else we =
> could format them so there is commonality across vendors we could just=
> amend those.

Could you paste an example of your format?

Standardized fdinfo sounds good to me in principle. But I would also
like people to look at the procfs proposal from Chris,
  - link to which I have pasted elsewhere in the thread.

Only potential issue with fdinfo I see at the moment is a bit of an
extra cost in DRM client discovery (compared to my sysfs series and also procfs RFC from Chris). It would require reading all processes (well
threads, then maybe aggregating threads into parent processes), all fd
symlinks, and doing a stat on them to figure out which ones are DRM devices= .

Btw is DRM_MAJOR 226 consider uapi? I don't see it in uapi headers.

> I=92d really like to have the process managers tools display GPU usage=
> regardless of what vendor is installed.

Definitely.

Regards,

Tvrtko
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boundary="===============1909599186==" Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" --===============1909599186== Content-Language: en-US Content-Type: multipart/alternative; boundary="_000_BYAPR12MB28409E25DEFD3DD620E596ABF42D9BYAPR12MB2840namp_" --_000_BYAPR12MB28409E25DEFD3DD620E596ABF42D9BYAPR12MB2840namp_ Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable [AMD Official Use Only] The format is simple: : % we also have entries for the memory mapped: mem : KiB On my submission https://lists.freedesktop.org/archives/amd-gfx/2021-May/06= 3149.html I added a python script to print out the info. It has a CPU usage= lower that top, for example. To be absolutely honest, I agree that there is an overhead, but It might no= t be as much as you fear. ________________________________ From: Tvrtko Ursulin Sent: Monday, May 17, 2021 9:00 AM To: Nieto, David M ; Daniel Vetter ; = Koenig, Christian Cc: Alex Deucher ; Intel Graphics Development ; Maling list - DRI developers Subject: Re: [PATCH 0/7] Per client engine busyness On 17/05/2021 15:39, Nieto, David M wrote: > [AMD Official Use Only] > > > Maybe we could try to standardize how the different submission ring > usage gets exposed in the fdinfo? We went the simple way of just > adding name and index, but if someone has a suggestion on how else we > could format them so there is commonality across vendors we could just > amend those. Could you paste an example of your format? Standardized fdinfo sounds good to me in principle. But I would also like people to look at the procfs proposal from Chris, - link to which I have pasted elsewhere in the thread. Only potential issue with fdinfo I see at the moment is a bit of an extra cost in DRM client discovery (compared to my sysfs series and also procfs RFC from Chris). It would require reading all processes (well threads, then maybe aggregating threads into parent processes), all fd symlinks, and doing a stat on them to figure out which ones are DRM devices= . Btw is DRM_MAJOR 226 consider uapi? I don't see it in uapi headers. > I=92d really like to have the process managers tools display GPU usage > regardless of what vendor is installed. Definitely. Regards, Tvrtko --_000_BYAPR12MB28409E25DEFD3DD620E596ABF42D9BYAPR12MB2840namp_ Content-Type: text/html; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable

[AMD Official Use Only]


The format is simple:

<ringname><index>: <XXX.XX> %

we also have entries for the memory mapped:
mem <ttm pool> : <size> KiB

On my submission https://lists.freedesktop.org= /archives/amd-gfx/2021-May/063149.html I added a python script to = print out the info. It has a CPU usage lower that top, for example.

To be absolutely honest, I agree that there is an overhead, but It might no= t be as much as you fear.
From: Tvrtko Ursulin <tv= rtko.ursulin@linux.intel.com>
Sent: Monday, May 17, 2021 9:00 AM
To: Nieto, David M <David.Nieto@amd.com>; Daniel Vetter <da= niel@ffwll.ch>; Koenig, Christian <Christian.Koenig@amd.com>
Cc: Alex Deucher <alexdeucher@gmail.com>; Intel Graphics Devel= opment <Intel-gfx@lists.freedesktop.org>; Maling list - DRI developer= s <dri-devel@lists.freedesktop.org>
Subject: Re: [PATCH 0/7] Per client engine busyness
 

On 17/05/2021 15:39, Nieto, David M wrote:
> [AMD Official Use Only]
>
>
> Maybe we could try to standardize how the different submission ring >   usage gets exposed in the fdinfo? We went the simple way o= f just
> adding name and index, but if someone has a suggestion on how else we =
> could format them so there is commonality across vendors we could just=
> amend those.

Could you paste an example of your format?

Standardized fdinfo sounds good to me in principle. But I would also
like people to look at the procfs proposal from Chris,
  - link to which I have pasted elsewhere in the thread.

Only potential issue with fdinfo I see at the moment is a bit of an
extra cost in DRM client discovery (compared to my sysfs series and also procfs RFC from Chris). It would require reading all processes (well
threads, then maybe aggregating threads into parent processes), all fd
symlinks, and doing a stat on them to figure out which ones are DRM devices= .

Btw is DRM_MAJOR 226 consider uapi? I don't see it in uapi headers.

> I=92d really like to have the process managers tools display GPU usage=
> regardless of what vendor is installed.

Definitely.

Regards,

Tvrtko
--_000_BYAPR12MB28409E25DEFD3DD620E596ABF42D9BYAPR12MB2840namp_-- --===============1909599186== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/intel-gfx --===============1909599186==--