From: "Christian König" <christian.koenig@amd.com>
To: "Patel, Mihir" <Mihir.Patel@amd.com>,
"amd-gfx@lists.freedesktop.org" <amd-gfx@lists.freedesktop.org>
Cc: "Chauhan, Madhav" <Madhav.Chauhan@amd.com>,
"Deucher, Alexander" <Alexander.Deucher@amd.com>,
"Kamliya, Prakash" <Prakash.Kamliya@amd.com>,
"Surampalli, Kishore" <Kishore.Surampalli@amd.com>
Subject: Re: [PATCH v3] drm/amdgpu: Add debugfs entry for printing VM info
Date: Mon, 12 Oct 2020 12:50:01 +0200 [thread overview]
Message-ID: <24df1d90-04ad-e444-306d-7c2e16979b80@amd.com> (raw)
In-Reply-To: <DM6PR12MB4452CDAE4721D598694241B8E8070@DM6PR12MB4452.namprd12.prod.outlook.com>
Am 12.10.20 um 12:00 schrieb Patel, Mihir:
> [AMD Official Use Only - Internal Distribution Only]
>
>
>
> -----Original Message-----
> From: Koenig, Christian <Christian.Koenig@amd.com>
> Sent: Monday, October 12, 2020 3:14 PM
> To: Patel, Mihir <Mihir.Patel@amd.com>; amd-gfx@lists.freedesktop.org
> Cc: Chauhan, Madhav <Madhav.Chauhan@amd.com>; Deucher, Alexander <Alexander.Deucher@amd.com>; Surampalli, Kishore <Kishore.Surampalli@amd.com>; Kamliya, Prakash <Prakash.Kamliya@amd.com>
> Subject: Re: [PATCH v3] drm/amdgpu: Add debugfs entry for printing VM info
>
> [SNIP]
>> Hi Christian,
>> One question regarding getting total allocations by app and also swapped size for the app.
>> Shouldn’t we print mapped entries as well to get total allocation by the process ?
>> Also which list would represent swapped memory?
> None, we don't really have that information anywhere since we don't really have a swapped state.
>
> See when the application allocates a BO in VRAM the kernel driver is free to swap it out to GTT and still do command submission. Only when it is further swapped out to the CPU domain it is not accessible any more.
>
> So what you can do is to look at the BOs in the CPU domain, but this only gives you a certain hint on what's going on.
>
> Regards,
> Christian.
>
> Thanks Christian for clarifying about swapped memory. How about total allocated size? Can't we print mapped BOs since amdgpu_gem_info is FILE/gem handle based?
That's what you are already printing. E.g. if you sum up all the BOs in
all the different states then you have the total amount of allocated
memory for this process.
Even if some of that memory isn't mapped into the VM.
Christian.
> Regards,
> Mihir
>> Thanks,
>> Mihir
_______________________________________________
amd-gfx mailing list
amd-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx
next prev parent reply other threads:[~2020-10-12 10:50 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-12 9:01 [PATCH v3] drm/amdgpu: Add debugfs entry for printing VM info Mihir Patel
2020-10-12 9:10 ` Christian König
2020-10-12 9:37 ` Patel, Mihir
2020-10-12 9:44 ` Christian König
2020-10-12 10:00 ` Patel, Mihir
2020-10-12 10:50 ` Christian König [this message]
2020-10-12 10:54 ` Christian König
2020-10-12 11:51 ` Patel, Mihir
2020-10-13 12:19 ` Chauhan, Madhav
2020-10-13 17:04 ` Christian König
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=24df1d90-04ad-e444-306d-7c2e16979b80@amd.com \
--to=christian.koenig@amd.com \
--cc=Alexander.Deucher@amd.com \
--cc=Kishore.Surampalli@amd.com \
--cc=Madhav.Chauhan@amd.com \
--cc=Mihir.Patel@amd.com \
--cc=Prakash.Kamliya@amd.com \
--cc=amd-gfx@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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox