| ▲ | adgjlsfhk1 3 days ago | |
> - The hardcoded page size. I'm pretty confident that this will get removed. It's an extension that made it's way into RVA23, but once anyone has a design big enough for it to be a burden, it can be dropped. | ||
| ▲ | monocasa 3 days ago | parent [-] | |
That's really hard to drop. Fancier unix programs tend to make all kinds of assumptions about page size to do things like the double mapped ring buffer trick. https://en.wikipedia.org/wiki/Circular_buffer#Optimization In fact it looks like apple silicon maintains support for 4kb pages just for running Rosetta. It's one of those things like TSO that was enough of a pain to work around the assumptions that they just included hardware support for it that isn't enabled when running in regular arm software mode. | ||