Am Dienstag, 23. Februar 2016, 17:49:01 schrieb KOVÁCS István:
> Hi,

Hi.

> I use an input colour profile that I've converted from RawStudio via
> dcp2icc:
> http://tech.kovacs-telekes.org/files/Nikon_D7000_Rawstudio_Advanced_Profile
> .icc
> 
> Applying that takes ages during export:
> [dev_pixelpipe] took 10.303 secs (17.991 CPU) processed `input color
> profile' on CPU with tiling, blended on CPU [export]

That is excessive.

> This is on an old Core2 box, with OpenCL (NVidia 650 / 2 GB) available
> and used by most modules. Is this normal? Darktable 2.0.1 from PPA;
> Linux Mint.

Some questions that might help narrow this down:

- Are other profiles also so slow? For example the standard matrix?
- Does it get better when you disable OpenCL? It wasn't used for the profile 
step, but sometimes copying buffers back and forth is the real bottleneck and 
it gets counted as module runtime.
- How much (free) memory does your computer have?

> Thanks,
> Kofa

Tobias

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