Darktable processing time became extremely slow

Hi all,

In the previous days anything what I do in darktable became reaaally slow. No matter what I do it’s aaalways ‘working’ for 3-4 seconds at least. I haven’t changed anything, a few days ago it started. I pretty like to use this software and use it for a while and never had this issue before. I use a Mac 2016, 3,3 GHz Dual-Core Intel Core i7, 16 GB 2133 MHz LPDDR3, Intel Iris Graphics 550 1536 MB
Ideas welcome as I love to edit but have no idea how to solve this.

I won’t have the knowledge to help you, but the people who can will need to know which version of DT you are using and if specific modules are worse.

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I had very long delay to export my files. Finally I noticed that It only happens (to me and my laptop) after intensive use of the diffuse&Sharp module.

Yes, iterations slow down the rendering a lot

Going from your comments that you have not changed anything and you are not doing anything different… then you might have an issue with your database, also I have on one or two instances seen things like this corrected by deleteing the opencl kernel cache folders… DT will create fresh ones when you restart it… I am not sure of the location on a Mac but it might be worth a try in your case and will not cause any issue…

check in preferences that open CL is still enabled

Thank you all for your kind responses. I have checked and the Open CL was not enabled. The DT manual says it can help with the performance and it did. I carried on today and it was okay. If tomorrow is the same I won’t compose other lines.

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