3 ms·

> which is quite hard to completely stamp out all possibility of while retaining the concept of speculative execution So... why not do exactly that? Let compil

> which is quite hard to completely stamp out all possibility of while retaining the concept of speculative execution So... why not do exactly that? Let compilers access cache and stop this nonsense where we pretend computer memory is flat in order to let C developers believe they're "close to the metal [sic]"

gpderetta 8y ago
That's because compilers by are terrible at predicting the dynamic behaviour of a program, be it cache access patterns, branche prediction etc.
- vmchale 8y ago
  They don't have to be. If cache access has finer controls, the compiler can use them.
  - gpderetta 8y ago
    That worked well for CELL. It is not of a matter of having control, the issue is that the working set of a program is data dependent and not statically predictable.