![]() ![]() ![]() Since I had never worked with the darktable codebase before, I decided to use other existing means for profiling the application first. Exporting to JPEG was much faster, taking less than two seconds on the PC and about eight on the ultrabook. ![]() I wouldn’t expect my old Intel Core i5-5300U ultrabook to do well in this benchmark, but it processed the same image in about 18 seconds. I had checked that both strategies were actually working, but exporting one of my Nikon D750 RAW images at full 24 megapixel resolution with the usual processing modules applied took up to twelve seconds. I’ve always had the impression that the PNG export might be slower than it has to be, but it had become a real issue since I’ve upgraded my desktop PC to a six-core Ryzen 7 1600X CPU and an NVIDIA GTX 950 GPU.ĭarktable uses OpenMP for multithreading, and OpenCL to offload most image processing routines to the GPU. My workflow is centered around darktable, but instead of exporting to JPEG format I export 16-bit PNGs so I can pass the images through some additional scripts and move the lossy compression step to the very last moment. I do a lot of photo editing nowadays, mostly for my travel blog over at One Man, One Map. ![]()
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