Exupery (was Re: [IDEAS] Looking at Factor)

Giovanni Giorgi jj at objectsroot.com
Mon Oct 2 10:59:55 UTC 2006

As far as I know inlining is what you think.
In Smalltalk every compiled method has an object represnting it.
As I knew Exupery builds a special method object containing machine-opcode.

After years of Smalltalk usage, I came to the point to which the real
problem is slow message sending.
Because in Smalltalk every message send is dynamic,
the performance penalty is very high.

VW had a mechanism similar to Exupery in the last years but it does
not seem to me a lot more fast then squeak in some areas.

On 9/30/06, J J <azreal1977 at hotmail.com> wrote:
> Any guess when 1.0 will be finished?  Are you the only person working on
> this?
> Also, just to make sure I understand:  I came from a C++ background, and
> when I hear "inlining" I think of C++ inline (when ever you see this
> "function" replace it, at the call site, with the body of the "function").
> I assume you mean the same thing in smalltalk?  It does look like smalltalk
> could make some huge gains from such inlining since so much of the code just
> calls other methods with slightly different arguments.
> >From: Bryce Kampjes <bryce at kampjes.demon.co.uk>
> >Reply-To: The general-purpose Squeak developers
> >list<squeak-dev at lists.squeakfoundation.org>
> >To: The general-purpose Squeak developers
> >list<squeak-dev at lists.squeakfoundation.org>
> >Subject: Re: [IDEAS] Looking at Factor
> >Date: Thu, 7 Sep 2006 19:19:48 +0100
> >
> >Giovanni Giorgi writes:
> >  >
> >  > I am studying factor and would be quite easy to build a
> >  > Squeak-bytecode2factor compiler.
> >  > Because factor  has a x86/PPC compiler, we can get for free a very
> >  > fast Squeak at the end.
> >
> >If your goal is to make Squeak much faster then helping out on
> >Exupery would probably be less work with more gain. Exupery can
> >already compile almost all of Squeak's bytecodes. It has polymorphic
> >inline caches to speed up sends. It can compile blocks. It can
> >dynamically inline primitives.
> >
> >The current priorities are compiling more primitives and fixing bugs
> >aiming at getting to a 1.0 release as soon as possible.
> >
> >Bryce
> >

Software Architect
Software is nothing

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