[Mesa-dev] [PATCH 0/3] R600-GCN: Improving performance on APUs & IGPs

eocallaghan at alterapraxis.com eocallaghan at alterapraxis.com
Tue Apr 12 08:15:34 UTC 2016

Reviewed-by: Edward O'Callaghan <eocallaghan at alterapraxis.com>

Thanks for working on this,

On 2016-04-12 05:02, Marek Olšák wrote:
> Hi,
> This disables buffer moves between VRAM and GTT by setting both of
> them as preferred heaps for APUs and IGPs.
> Allocations go to VRAM if there is free space. If not, they go to GTT.
> If a buffer is evicted from VRAM to GTT, it will stay there. If it's
> evicted from GTT to swap, it can later be moved to either VRAM or GTT
> (whichever has free space).
> Tonga with 128 MB VRAM (decreased for testing) is 2x faster in Heaven
> (1600x900 Ultra noAA) if I force has_dedicated_vram=false in Mesa,
> leading to literally 0 buffer evictions.
> Please review.
> Marek
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