CPU cache locality is not "real cache locality", it is just another place where caches exist and locality is optimized for. Your solution wouldn't work for CPUs

CPU cache locality is not "real cache locality", it is just another place where caches exist and locality is optimized for. Your solution wouldn't work for CPUs either, other than that you could fit more data into a cache line - but that's like saying "increase the cache size to solve this problem", which obviously can help but is not addressing the inherent issue.