3 ms·
too late to edit Turns out that M1 can track the history of indirect branches just fine, but it takes 3 cycles for a correct prediction. With threaded jumps, t
by phire 2y ago
too late to edit
Turns out that M1 can track the history of indirect branches just fine, but it takes 3 cycles for a correct prediction. With threaded jumps, the M1 gets a slightly higher hit rate for the initial 1 cycle prediction.
https://news.ycombinator.com/item?id=40953764 https://news.ycombinator.com/item?id=40953764