By: Gabriele Svelto (gabriele.svelto.delete@this.gmail.com), July 17, 2015 5:40 am
Room: Moderated Discussions
anon (anon.delete@this.anon.com) on July 13, 2015 6:05 am wrote:
> Do smaller cores actually do significantly more reordering such as store/store reordering
Simpler cores benefit more from store/store reordering because simpler mechanisms can be put in place to conserve L1/L2 write bandwidth. See my post about how the Xbox 360's Xenon processor merge stores and writes them out a cacheline at a time even though it causes stores to appear out of order.
> Do smaller cores actually do significantly more reordering such as store/store reordering
Simpler cores benefit more from store/store reordering because simpler mechanisms can be put in place to conserve L1/L2 write bandwidth. See my post about how the Xbox 360's Xenon processor merge stores and writes them out a cacheline at a time even though it causes stores to appear out of order.
