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[Gcl-devel] Re: Can Windows CL compilers be as fast as CMUCL ?

From: Camm Maguire
Subject: [Gcl-devel] Re: Can Windows CL compilers be as fast as CMUCL ?
Date: 19 Feb 2005 16:48:15 -0500
User-agent: Gnus/5.09 (Gnus v5.9.0) Emacs/21.2

The following message is a courtesy copy of an article
that has been posted to comp.lang.lisp as well.

Greetings!  GCL is pretty competitive with CMUCL performance-wise in
my experience, and is supported on Windows.

Take care,

Wade Humeniuk <address@hidden> writes:

> Marc Battyani wrote:
> > Does not look very slow.
> > OK those declaration are not pretty but you only need them in some parts.
> >
> Well it does look slow to me.  With vector based CPU instructions that
> routine could be reduced to one instruction.  On the vector based
> machines I was familiar with (the old CYBER 205) there was a single
> machine instruction to multiply a vector by a scalar.  I assume the
> newer x86 instructions provide something similar.  Perhaps if
> the Lisp vendors provided an API to embed machine instructions
> directly and allow some low level access to get at the internal
> representation of vectors, then this would all be academic.
> Wade

Camm Maguire                                            address@hidden
"The earth is but one country, and mankind its citizens."  --  Baha'u'llah

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