There is of course a slight chicken-egg-thing here: If there was no (dynamic) br... | Hacker News

Hacker Newsnew | past | comments | ask | show | jobs | submit

		grumbelbart2 10 months ago \| parent \| context \| favorite \| on: Branch Privilege Injection: Exploiting branch pred... There is of course a slight chicken-egg-thing here: If there was no (dynamic) branch prediction, we (as in compilers) would emit different code that is faster for non-predicting CPUs (and presumably slower for predicting CPUs). That would mitigate a bit of that 10x.

anyfoo 10 months ago [–]

A bit. I think we've shown time and time again that letting the compiler do what the CPU is doing doesn't work out, most recently with Itanium.

Guidelines | FAQ | Lists | API | Security | Legal | Apply to YC | Contact