amd64 slower than i386 on identical AMD 64 system? / How is
hyperthreading handled on amd64?
joao at matik.com.br
Thu Mar 16 10:47:24 UTC 2006
On Wednesday 15 March 2006 18:56, Peter Wemm wrote:
> I tend to agree with this. ubench is not a useful benchmark for
> comparing 32 bit vs 64 bit systems.
> However, what might be interesting is to compile a 32 bit binary (and
> statically link it) on the i386 system, and compare the runtime on the
> 64 bit kernel, using the same identical binary. That way you are
> measuring the same math operations on both platforms. Comparing 64 bit
> operations vs 32 bit operations is apples vs oranges.
> Of course, it may still be slower, but at least the results would be
> more meaningful. Don't assume the OS is slower because the compiler
> makes the application do twice the work.
what do you think of unixbench since it does some real-life tasks?
A mensagem foi scaneada pelo sistema de e-mail e pode ser considerada segura.
Service fornecido pelo Datacenter Matik https://datacenter.matik.com.br
More information about the freebsd-amd64