Hi there,

I have both systems on a DELL 64bit machine.
I compiled R 2.9.0 on both systems, to get 64bits capability.
Surpriselly, on Linux (Ubuntu with I installed 3 month ago) I spent 41s to
run the same test you did, and less time (35s) under Vista. In fact I had
noticed that I not have gained time when running under linux (I had done
jobs that run for several days). But somethings I gain with memory
managment, because for some programs or steps, windows say that memory is
full, while Linux run up to the end of the job.

good luck

milton

On Fri, Jun 26, 2009 at 4:01 PM, Zeljko Vrba <zvrba@ifi.uio.no> wrote:

> On Fri, Jun 26, 2009 at 12:23:35PM -0700, Cézar Freitas wrote:
> >
> > I supposed R on Linux should be faster (32 and 64 bit) than windows
> version. Is this difference because 64 bit R version is slower than 32 bits
> one? I started the machine in both sittuations and checked free memory.
> >
> I suspect that the compiler is to blame.  Download Intel's C and C++
> compiler
> for linux (it is free for personal use), try to compile R with it, and see
> what results you get (and report them here!).  Of course, if you have the
> time and are willing to tinker :)
>
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