[Bf-cycles] GPU Performance Regression

Martijn Berger martijn.berger at gmail.com
Fri Feb 14 21:49:53 CET 2014


Hi David,  Ebriel,

I most likely caused this with the patch that fixes cuda busy waiting.
I am very curious about the amount of tiles and the exact configuration of
you hard- and software.
This includes CPU(s) (with type, clock etc) , GPU(s), exact driver version,
kernel version, amount of ram etc etc.

Martijn


On Fri, Feb 14, 2014 at 9:45 PM, David Fenner <d4vidfenner at gmail.com> wrote:

> Please submit this as a bug in the bug tracker, with steps to recreate it
> and ideally an example file.
>
>
> 2014-02-14 17:40 GMT-03:00 Eibriel <eibriel at yahoo.com.ar>:
>
>>  Hi!
>>
>> I've noticed a GPU performance regression of about 100% on lasts builds
>> (las tested: fdcdd5e).
>> Render time on Blender 2.69: 1.5min
>> Render time on Trunk: 3min
>>
>> On Ubuntu 12.04, NVidia TITAN (I'm not sure CUDA version)
>>
>>  Regards!
>>
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>>
>
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