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? >> I don't think it makes sense to compile things like dateutils with >> 32-bit pointers for performance reasons. Also, I would assume that >> modern compilers are able to optimize the code well enough that the >> difference between 32-bit and 64-bit pointers isn't too big that >> it justifies the effort. > > No compiler is going to optimize away the pointers in the data > structures, and thus get all of those cache line and tlb misses back. Intel ICC does exactly that. I even provided a reference for that. Adrian -- .''`. John Paul Adrian Glaubitz : :' : Debian Developer - [email protected] `. `' Freie Universitaet Berlin - [email protected] `- GPG: 62FF 8A75 84E0 2956 9546 0006 7426 3B37 F5B5 F913
