Am Mittwoch, 14. September 2016, 18:56:03 CEST schrieb Ulrich Pegelow: [...]
> There is a quick fix for that in darktable. You can switch config > variable opencl_use_pinned_memory to TRUE (can be found in darktablerc). > At least here on my this makes a difference of up to a factor of 30 > (oldish GeForce GTS 450 and 367.35 driver). [...] > If my findings are confirmed we will change the default setting of that > flag for new installations. Users of existing installations will need to > change the config flag manually. With a speed difference like that, couldn't we run a small benchmark at init time (we already compare the speed to the CPU) and set the flag accordingly at runtime? > Please check and report back. > > Ulrich Tobias [...]
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