I think this doesn't get talked about enough. If your input is a big run of data that is being checked/transformed in one shot, it works well. But, if you're likely to have to make a decision on several bytes of the input, SIMD will be the same or slower than the scalar method. It's not a magic "go fast" button.
I think this doesn't get talked about enough. If your input is a big run of data that is being checked/transformed in one shot, it works well. But, if you're likely to have to make a decision on several bytes of the input, SIMD will be the same or slower than the scalar method. It's not a magic "go fast" button.