Re: Please upgrade your machines to sparc64
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 - glaubitz@debian.org
`. `' Freie Universitaet Berlin - glaubitz@physik.fu-berlin.de
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