Would anyone who understands mind explaining the phrase "prefetch window"? I don't quite get what's meant by that from context, and can't seem to find anything from googling.
I'm just going off the article, here is my understanding.
The sample program is doing 2^7 = 128 NOPs, 4 at a time for 32 cycles, and then it is doing a memory access.
The address of memory that is going to be accessed is known right before doing the 32 cycles of "work", so a prefetch can be issued at that time.
The meaning of the 'prefetch windown' term is the number of cycles that you have between when you issue the prefetch to when you issue the instruction that accesses the address that was prefetched. So it is based on the structure of the program being analyzed.
