How to find the size of the L1 cache line size with IO timing measurements?

Question

As a school assignment, I need to find a way to get the L1 data cache line size, without reading config files or using api calls. Supposed to use memory accesses read/write timi

Answer 1

I think you should write program, that will walk throught array in random order instead straight, because modern process do hardware prefetch. For example, make array of int, which values will number of next cell. I did similar program 1 year ago http://pastebin.com/9mFScs9Z Sorry for my engish, I am not native speaker.