On Sat, 22 Sep 2007, Richard Fateman wrote:
> To repeat the point made by Stavros:
>
> To compare Maxima properly one needs to have two different Lisp
> implementations, one using 32 bits (for addresses) and one using 64 bits.
> Perhaps there is a working 64-bit SBCL as well as a 32-bit one. This will
> require 2 Maxima binaries.
>
> Taking the same binary and running it with the OS in 32 or 64 bit mode is
> not such an interesting test because a 32-bit lisp implementation will not
> use any 64-bit operations, and so could hardly benefit.
>
> RJF
Hm, ... , as far as I understood the original poster's
(Miguel Marco) question, he wanted to know if he has to expect
"performance impacts" after switching from 32-bit to 64-bit
architecture.
Raymond Toy's idea was to find someone with a running 64-bit
maxima and compare results to a 32-bit machine.
I built two maxima's on my 64-bit FreeBSD (AMD 64, 3 GHz, 2 GB
RAM), and get for
clisp 205.4 s
sbcl 54.3 s
gcl is not available for FreeBSD amd64 .
If now we had results for a comparable 32-bit computer, this
wouldn't be a highly elaborated benchmark test, but we could
answer Miguel Marcos question - couldn't we?
Greetings,
Peter Ulrich Kruppa
Wuppertal
Germany