> > Also worth nothing that the difference between the cpu and memory > > speeds is much lower - so far fewer instructions could be speculatively > > executed while waiting a cache miss.
But they also have more instructions that take a lot of clocks and are easier to stall - eg by doing things like opening and mmapping a framebuffer and then doing a floating point double store to it misaligned. Meltdown we can at least reasonably test but spectre is hard. Alan
