4 ms·
Speculative execution, out of order execution, branch prediction have been in processor designs at least back to the 1980s.
by graycat 9y ago
Speculative execution, out of order execution, branch prediction have been in processor designs at least back to the 1980s.
- leoc 9y agoSure. I had Meltdown specifically on the brain when I wrote that, sorry. It hardly needs saying that the preconditions for Spectre-like attacks being around for several decades doesn't make the situation any less embarrassing. (That said, I don't know whether things like eg. increasing pipeline depths only made actual attacks feasible relatively recently.)