Keith Whitwell wrote:
> Texdown
>     1327MB/s (i915tex)
>     551MB/s (master, ttm)
>     572MB/s (master, no-ttm)
> Texdown, subimage
>     1014MB/s (i915tex)
>     134MB/s (master, ttm)
>     148MB/s (master, no-ttm)
>   

Gem on this machine (kernel 2.6.24) is hitting
Texdown 342MB/s
Texdown, subimage 76MB/s

...
>
>    - a separate regression seems to have killed texture upload performance on 
> master/ttm relative to it's ancestor i915tex.
>   

Actually I think these are mostly issues stemming from not using 
write-combined mappings and instead using write-back mappings with 
clflush and chipset flush before binding to the GTT.

Note that, from what I can tell, the i915 gem driver is still using mmap 
for these operations.
/Thomas

> Keith
>
>   




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