When I took my first database course one topic was IO performance as measured in seek time on regular old hard drives.
You can’t really optimise your code for faster sequential reads than the IO is capable of, so the only thing really worth focusing on is how to optimise everything that isn’t already sequential.
You can’t really optimise your code for faster sequential reads than the IO is capable of, so the only thing really worth focusing on is how to optimise everything that isn’t already sequential.