> - Are other profiles also so slow? For example the standard matrix?
No, they are fast. Standard matrix is applied using OpenCL:
[dev_pixelpipe] took 0.036 secs (0.028 CPU) processed `input color
profile' on GPU, blended on GPU [export]
> - 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.
With OpenCL disabled, the converted RawStudio profile is slow,
standard matrix is fast:
[dev_pixelpipe] took 9.218 secs (16.960 CPU) processed `input color
profile' on CPU with tiling, blended on CPU [export]
vs.
[dev_pixelpipe] took 9.218 secs (16.960 CPU) processed `input color
profile' on CPU with tiling, blended on CPU [export]
> - How much (free) memory does your computer have?
It's an old box with only 4 GB of RAM.
> free
total used free shared buffers cached
Mem: 4046984 3515600 531384 48304 237772 1266132
-/+ buffers/cache: 2011696 2035288
Swap: 67108860 898944 66209916
> top
KiB Mem: 4046984 total, 3814072 used, 232912 free, 413652 buffers
KiB Swap: 67108860 total, 898728 used, 66210132 free. 1265756 cached Mem
This is with darktable loaded but inactive in the background.
Thanks,
Kofa
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