From: John Paul Adrian Glaubitz <[email protected]> Date: Thu, 23 Jun 2016 21:33:34 +0200
> On 06/23/2016 09:31 PM, David Miller wrote: >> And all of those binaries you say "don't matter" take up memory, >> swap space, etc. And if you add this up for the entire system >> it's non-trivial. >> >> Multiply this by some factor N when virtualization is involved. > > On a machine with 8 TiB of memory? I have also never heard anyone complain > about memory issues on x86_64. Are you also running i686 for that reasons? It's physical memory, cache memory, TLB entries. Not the amount of physical or virtual "address space" the cpu supports. > Intel ICC does exactly that. I even provided a reference for that. I don't understand how such an optimization is even possible, or would even apply in common cases where the pointer is actually used.
