Feature request: cache upscaler result

[crazygonuts]

If there is already a way to do this, I apologize but I couldn't figure it out.

Sometimes with very large images, the upscaler can take a significant amount of time, some upscalers are not fast - swinIR and most especially LDSR - and I have to run the ultimate upscale multiple times with different denoise values to get the best final output. It would save a lot of time if I could just run the upscaler once and then do the tile generation multiple times with different denoise values. Is there already a way to do this?

[Jopezzia]

You can upscale 1 time on extra with upscaler and send it to img2img. Just use target size - Scale from image size - 1