The Difference Between Multi Processing and Multi Threading

I've learned quite a lot of things that process how to optimize the OCR, how to look for the things that can actually fasten your pipeline. So I definitely jumped into the multi processing portion and look for different techniques that I can use to speeden up my pipeline. And what we were focusing on was using multiple processes so that we can utilize all our CPU. But one of the reasons that didn't work quite well was because even though we were reducing the time of OCR, which was on single image, but eventually it was increasing the number of faults of the OCR,. Which was quite an expensive thing. What I eventually did was just that I did multiple processes and for