Re:Memory access on the Apple M1 processor
by andrei-at on Saturday January 09, 2021 @11:03AM
(#25701433)
Hi, Andrei here.
Just a clarification as to why the P per RV prange numbers are good: This pattern is simply aggressively prefetched by the region prefetcher in the M1, while Zen3 doesn't pull things in as aggressively.
Just a clarification as to why the P per RV prange numbers are good: This pattern is simply aggressively prefetched by the region prefetcher in the M1, while Zen3 doesn't pull things in as aggressively.