From: Thomas Hellstrom <thomas@shipmail.org>
To: "Marek Olšák" <maraeo@gmail.com>
Cc: dri-devel@lists.freedesktop.org
Subject: Re: [RFC] drm/ttm: add minimum residency constraint for bo eviction
Date: Thu, 29 Nov 2012 10:18:07 +0100 [thread overview]
Message-ID: <50B7284F.9090708@shipmail.org> (raw)
In-Reply-To: <CAAxE2A43OTdppDDtY710BbSBA+oB0y15YptsksN=sDt2=-5+2w@mail.gmail.com>
On 11/28/2012 10:51 PM, Marek Olšák wrote:
> I think the problem with Radeon/TTM is much deeper. Let me demonstrate
> it on the following example.
>
> Unigine Heaven needs about 385MB of space for static resources, that's
> only 75% of my 512MB card. Yet, TTM is not capable of getting all of
> that into VRAM. If I allow GTT placements, I get 20 fps, which is the
> old Mesa behavior. If I force VRAM placements, I get 3 fps, because we
> validate buffers 10 times per frame and there's probably a lot of
> buffer evictions during each validation.
>
Marek,
Did you look at the total amount of referenced buffers in the ring
including vertex buffers?
Depending on how hard you throttle, I guess vertex / index buffer data
referenced by the
ring commands may well exceed the VRAM limitation.
/Thomas
next prev parent reply other threads:[~2012-11-29 9:18 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-11-28 15:58 [RFC] drm/ttm: add minimum residency constraint for bo eviction j.glisse
2012-11-28 15:58 ` [PATCH] " j.glisse
2012-11-28 23:18 ` Thomas Hellstrom
2012-11-28 23:24 ` Jerome Glisse
2012-11-28 23:44 ` Alan Swanson
2012-11-29 0:01 ` Jerome Glisse
2012-11-29 2:15 ` Marek Olšák
2012-11-29 8:04 ` Thomas Hellstrom
2012-11-29 12:52 ` Marek Olšák
2012-11-29 20:33 ` Thomas Hellstrom
2012-11-29 21:58 ` Marek Olšák
2012-11-30 8:38 ` Thomas Hellstrom
2012-11-30 9:39 ` Asynchronous eviction [WAS Re: [PATCH] drm/ttm: add minimum residency constraint for bo eviction] Thomas Hellstrom
2012-11-30 16:30 ` Jerome Glisse
2012-11-30 17:08 ` Thomas Hellstrom
2012-11-30 17:18 ` Jerome Glisse
2012-11-30 17:43 ` Thomas Hellstrom
2012-11-30 18:07 ` Jerome Glisse
2012-11-30 18:31 ` Thomas Hellstrom
2012-11-30 19:25 ` Jerome Glisse
2012-11-30 20:35 ` Thomas Hellstrom
2012-11-30 21:07 ` Jerome Glisse
2012-11-30 21:36 ` Thomas Hellstrom
2012-11-30 22:02 ` Jerome Glisse
2012-11-29 8:41 ` [PATCH] drm/ttm: add minimum residency constraint for bo eviction Thomas Hellstrom
2012-11-29 15:50 ` Jerome Glisse
2012-11-28 21:51 ` [RFC] " Marek Olšák
2012-11-28 23:18 ` Jerome Glisse
2012-11-29 9:18 ` Thomas Hellstrom [this message]
2012-11-29 9:28 ` Michel Dänzer
2012-11-29 9:48 ` Thomas Hellstrom
2012-11-29 19:20 ` Marek Olšák
2012-11-29 19:36 ` Jerome Glisse
2012-11-29 20:40 ` Thomas Hellstrom
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