Jep, the most impressive thing I have seen about this was when a coworker was able to squeeze the processing of (small) images into the CPU-cache only (and impr

Jep, the most impressive thing I have seen about this was when a coworker was able to squeeze the processing of (small) images into the CPU-cache only (and improving the steps used to get the image there). The speedup was a factor around 15.