Re: FORTH Trouble--Please Show Me

From	"Rod Pemberton" <do_not_have@notemailnotz.cnm>
Newsgroups	comp.lang.forth
Subject	Re: FORTH Trouble--Please Show Me
Date	2012-10-22 03:50 -0400
Organization	Aioe.org NNTP Server
Message-ID	<k62tkl$khe$1@speranza.aioe.org> (permalink)
References	(4 earlier) <k5vhel$b0k$1@speranza.aioe.org> <717bab9e-8733-4399-a881-bd6766ba6ef2@i2g2000pbi.googlegroups.com> <k60tp6$64v$1@speranza.aioe.org> <1d7dd236-5952-41eb-8fe6-1ae8acdc0f1b@i7g2000pbf.googlegroups.com> <4915176.bI2hdeRrkA@sunwukong.fritz.box>

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"Bernd Paysan" <bernd.paysan@gmx.de> wrote in message
news:4915176.bI2hdeRrkA@sunwukong.fritz.box...
> Hugh Aguilar wrote:
> > Look at how horribly slow Gforth is. That is because it was written in
> > C rather than assembly-language. Your C-based Forth will also be
> > horribly slow for the same reason.
>
> I don't know what you mean with "horribly slow".

My Forth is interpreted as in ITC.  So, yes, it'll be slow as compared to a
compiled Forth.  But, I think Hugh was referring to the usually switch()
based Forth in C, which aren't very fast either.  GForth moved "beyond" that
design years ago.

> E.g. take a very
> classical Forth benchmark, the Byte sieve one.  On my machine, gforth-
> fast does this benchmark in 0.325s (1000 times primes, x64
> architecture).  VFXForth, which has a way more sophisticated compiler,
> does it in 0.215s.  bigForth, which is a less sophisticated native code
> compiler for x86, does it in 0.277s - both use the x86 architecture,
> i.e. the register starved 32 bit model.
>
> We did put quite some effort into Gforth to make it fast while still
> using the C compiler - the latter to make it easy enough to port.  The
> effort to write a compiler like the one in VFX is tremendous, and not
> worth to repeat for more than a very few popular platforms.  I.e. the
> result wouldn't be a very portable Forth.

Correction:
"... did put quite some effort into" _Gforth-fast_ "to make ..."

My ITC interpreter easily outperforms GForth ITC, except for loops - where
it is currently very, very slow.  The loop constructs are now coded in
Forth.  It does nothing special.  It's very simple.  It has almost no
optimizations.  In fact, I've been making it progessively  *slower*  in
order to eliminate C code.  It'll be reworked later, after the
transformation is complete.  The loop constructs might be converted to
low-level words or primitives at that time.

Rod Pemberton

Thread

FORTH Trouble--Please Show Me "Charles Richmond" <numerist@aquaporin4.com> - 2012-10-17 16:56 -0500
  Re: FORTH Trouble--Please Show Me all2001@spambog.com (Wolfgang Allinger) - 2012-10-17 19:11 -0300
    Re: FORTH Trouble--Please Show Me Mark Wills <forthfreak@gmail.com> - 2012-10-18 01:15 -0700
      Re: FORTH Trouble--Please Show Me "Charles Richmond" <numerist@aquaporin4.com> - 2012-10-18 05:25 -0500
  Re: FORTH Trouble--Please Show Me mhx@iae.nl (Marcel Hendrix) - 2012-10-18 00:14 +0200
    Re: FORTH Trouble--Please Show Me Spam@ControlQ.com - 2012-10-17 18:45 -0400
      Re: FORTH Trouble--Please Show Me Anonymous <nobody@remailer.paranoici.org> - 2012-10-18 08:49 +0000
        Re: FORTH Trouble--Please Show Me Spam@ControlQ.com - 2012-10-18 15:58 -0400
          Re: FORTH Trouble--Please Show Me albert@spenarnc.xs4all.nl (Albert van der Horst) - 2012-10-18 21:53 +0000
          Re: FORTH Trouble--Please Show Me Hugh Aguilar <hughaguilar96@yahoo.com> - 2012-10-19 18:39 -0700
            Re: FORTH Trouble--Please Show Me Mark Wills <markrobertwills@yahoo.co.uk> - 2012-10-19 23:22 -0700
            Re: FORTH Trouble--Please Show Me "Charles Richmond" <numerist@aquaporin4.com> - 2012-10-21 13:40 -0500
          Re: FORTH Trouble--Please Show Me "Elizabeth D. Rather" <erather@forth.com> - 2012-10-19 21:00 -1000
            Re: FORTH Trouble--Please Show Me "A. K." <akk@nospam.org> - 2012-10-20 09:18 +0200
              Re: FORTH Trouble--Please Show Me "Elizabeth D. Rather" <erather@forth.com> - 2012-10-20 08:40 -1000
          Re: FORTH Trouble--Please Show Me mhx@iae.nl (Marcel Hendrix) - 2012-10-21 12:22 +0200
            Re: FORTH Trouble--Please Show Me Doug Hoffman <glidedog@gmail.com> - 2012-10-21 08:46 -0400
      Re: FORTH Trouble--Please Show Me mhx@iae.nl (Marcel Hendrix) - 2012-10-18 21:08 +0200
        Re: FORTH Trouble--Please Show Me Mark Wills <markrobertwills@yahoo.co.uk> - 2012-10-18 12:29 -0700
  Re: FORTH Trouble--Please Show Me Hugh Aguilar <hughaguilar96@yahoo.com> - 2012-10-17 20:24 -0700
    Re: FORTH Trouble--Please Show Me "Rod Pemberton" <do_not_have@notemailnotz.cnm> - 2012-10-19 19:46 -0400
      Re: FORTH Trouble--Please Show Me Hugh Aguilar <hughaguilar96@yahoo.com> - 2012-10-19 18:46 -0700
        Re: FORTH Trouble--Please Show Me "Rod Pemberton" <do_not_have@notemailnotz.cnm> - 2012-10-20 21:03 -0400
          Re: FORTH Trouble--Please Show Me "Elizabeth D. Rather" <erather@forth.com> - 2012-10-20 15:40 -1000
          Re: FORTH Trouble--Please Show Me Paul Rubin <no.email@nospam.invalid> - 2012-10-20 18:52 -0700
            Re: FORTH Trouble--Please Show Me "Elizabeth D. Rather" <erather@forth.com> - 2012-10-20 16:27 -1000
          Re: FORTH Trouble--Please Show Me Hugh Aguilar <hughaguilar96@yahoo.com> - 2012-10-20 20:56 -0700
            Re: FORTH Trouble--Please Show Me "Rod Pemberton" <do_not_have@notemailnotz.cnm> - 2012-10-21 09:40 -0400
              Re: FORTH Trouble--Please Show Me Paul Rubin <no.email@nospam.invalid> - 2012-10-21 12:51 -0700
                Re: FORTH Trouble--Please Show Me mhx@iae.nl (Marcel Hendrix) - 2012-10-21 23:50 +0200
                Re: FORTH Trouble--Please Show Me Paul Rubin <no.email@nospam.invalid> - 2012-10-21 17:11 -0700
                Re: FORTH Trouble--Please Show Me mhx@iae.nl - 2012-10-22 00:19 -0700
                Re: FORTH Trouble--Please Show Me Paul Rubin <no.email@nospam.invalid> - 2012-10-22 00:41 -0700
                Re: FORTH Trouble--Please Show Me Andrew Haley <andrew29@littlepinkcloud.invalid> - 2012-10-22 09:31 -0500
                Re: FORTH Trouble--Please Show Me Paul Rubin <no.email@nospam.invalid> - 2012-10-22 08:13 -0700
                Re: FORTH Trouble--Please Show Me mhx@iae.nl (Marcel Hendrix) - 2012-10-22 21:40 +0200
                Re: FORTH Trouble--Please Show Me Paul Rubin <no.email@nospam.invalid> - 2012-10-22 13:14 -0700
                Re: FORTH Trouble--Please Show Me "Elizabeth D. Rather" <erather@forth.com> - 2012-10-22 10:41 -1000
                Re: FORTH Trouble--Please Show Me mhx@iae.nl (Marcel Hendrix) - 2012-10-22 23:21 +0200
                Re: FORTH Trouble--Please Show Me Paul Rubin <no.email@nospam.invalid> - 2012-10-22 14:27 -0700
                Re: FORTH Trouble--Please Show Me "Elizabeth D. Rather" <erather@forth.com> - 2012-10-22 14:16 -1000
                Re: FORTH Trouble--Please Show Me Gerry Jackson <gerry@jackson9000.fsnet.co.uk> - 2012-10-23 21:42 +0100
                Re: FORTH Trouble--Please Show Me vandys@vsta.org - 2012-10-22 00:24 +0000
                Re: FORTH Trouble--Please Show Me "Rod Pemberton" <do_not_have@notemailnotz.cnm> - 2012-10-22 04:12 -0400
                Re: FORTH Trouble--Please Show Me Paul Rubin <no.email@nospam.invalid> - 2012-10-22 01:40 -0700
                Re: FORTH Trouble--Please Show Me Hugh Aguilar <hughaguilar96@yahoo.com> - 2012-10-22 02:39 -0700
                Re: FORTH Trouble--Please Show Me Hugh Aguilar <hughaguilar96@yahoo.com> - 2012-10-22 02:30 -0700
                Re: FORTH Trouble--Please Show Me "Rod Pemberton" <do_not_have@notemailnotz.cnm> - 2012-10-22 22:27 -0400
                Re: FORTH Trouble--Please Show Me David Thompson <dave.thompson2@verizon.net> - 2012-11-04 22:18 -0500
                Re: FORTH Trouble--Please Show Me Bernd Paysan <bernd.paysan@gmx.de> - 2012-11-05 15:35 +0100
                Re: FORTH Trouble--Please Show Me humptydumpty <ouatubi@gmail.com> - 2012-10-22 12:22 -0700
                Re: FORTH Trouble--Please Show Me Paul Rubin <no.email@nospam.invalid> - 2012-10-22 12:51 -0700
                Re: FORTH Trouble--Please Show Me humptydumpty <ouatubi@gmail.com> - 2012-10-22 23:40 -0700
                Re: FORTH Trouble--Please Show Me anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2012-10-23 12:50 +0000
                Re: FORTH Trouble--Please Show Me humptydumpty <ouatubi@gmail.com> - 2012-10-24 09:13 -0700
                Re: FORTH Trouble--Please Show Me anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2012-10-25 12:31 +0000
                Re: FORTH Trouble--Please Show Me humptydumpty <ouatubi@gmail.com> - 2012-10-26 09:58 -0700
              Re: FORTH Trouble--Please Show Me Hugh Aguilar <hughaguilar96@yahoo.com> - 2012-10-21 16:24 -0700
                Re: FORTH Trouble--Please Show Me Bernd Paysan <bernd.paysan@gmx.de> - 2012-10-22 02:51 +0200
                Re: FORTH Trouble--Please Show Me Andrew Haley <andrew29@littlepinkcloud.invalid> - 2012-10-21 19:55 -0500
                Re: FORTH Trouble--Please Show Me Bernd Paysan <bernd.paysan@gmx.de> - 2012-10-22 03:02 +0200
                Re: FORTH Trouble--Please Show Me "Rod Pemberton" <do_not_have@notemailnotz.cnm> - 2012-10-22 03:50 -0400
                Re: FORTH Trouble--Please Show Me Hugh Aguilar <hughaguilar96@yahoo.com> - 2012-10-22 01:03 -0700
                Re: FORTH Trouble--Please Show Me stephenXXX@mpeforth.com (Stephen Pelc) - 2012-10-22 10:12 +0000
                Re: FORTH Trouble--Please Show Me stephenXXX@mpeforth.com (Stephen Pelc) - 2012-10-22 10:08 +0000
                Re: FORTH Trouble--Please Show Me Bernd Paysan <bernd.paysan@gmx.de> - 2012-10-22 18:06 +0200
                Re: FORTH Trouble--Please Show Me mhx@iae.nl (Marcel Hendrix) - 2012-10-22 22:14 +0200
                Re: FORTH Trouble--Please Show Me albert@spenarnc.xs4all.nl (Albert van der Horst) - 2012-10-23 00:50 +0000
                Re: FORTH Trouble--Please Show Me Bernd Paysan <bernd.paysan@gmx.de> - 2012-10-23 03:43 +0200
                Re: FORTH Trouble--Please Show Me Andrew Haley <andrew29@littlepinkcloud.invalid> - 2012-10-23 03:14 -0500
                Re: FORTH Trouble--Please Show Me Hugh Aguilar <hughaguilar96@yahoo.com> - 2012-10-22 19:54 -0700
                Re: FORTH Trouble--Please Show Me Mark Wills <markrobertwills@yahoo.co.uk> - 2012-10-22 22:59 -0700
                Re: FORTH Trouble--Please Show Me Hugh Aguilar <hughaguilar96@yahoo.com> - 2012-10-24 09:23 -0700
                Re: FORTH Trouble--Please Show Me stephenXXX@mpeforth.com (Stephen Pelc) - 2012-10-23 10:33 +0000
                Re: FORTH Trouble--Please Show Me Hugh Aguilar <hughaguilar96@yahoo.com> - 2012-10-24 10:05 -0700
                Re: FORTH Trouble--Please Show Me Doug Hoffman <glidedog@gmail.com> - 2012-10-24 14:56 -0400
                Re: FORTH Trouble--Please Show Me anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2012-10-23 11:50 +0000
                Re: FORTH Trouble--Please Show Me stephenXXX@mpeforth.com (Stephen Pelc) - 2012-10-23 14:39 +0000
                Application Benchmarks (was: FORTH Trouble--Please Show Me) anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2012-10-23 15:59 +0000
                Re: Application Benchmarks (was: FORTH Trouble--Please Show Me) stephenXXX@mpeforth.com (Stephen Pelc) - 2012-10-24 14:33 +0000
                Re: Application Benchmarks (was: FORTH Trouble--Please Show Me) anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2012-10-25 14:19 +0000
                Re: FORTH Trouble--Please Show Me "Rod Pemberton" <do_not_have@notemailnotz.cnm> - 2012-10-22 03:56 -0400
                Re: FORTH Trouble--Please Show Me "Elizabeth D. Rather" <erather@forth.com> - 2012-10-21 22:12 -1000
                Re: FORTH Trouble--Please Show Me Hugh Aguilar <hughaguilar96@yahoo.com> - 2012-10-22 02:51 -0700
          Re: FORTH Trouble--Please Show Me Andrew Haley <andrew29@littlepinkcloud.invalid> - 2012-10-21 05:29 -0500
            Re: FORTH Trouble--Please Show Me "Rod Pemberton" <do_not_have@notemailnotz.cnm> - 2012-10-21 09:35 -0400
            Re: FORTH Trouble--Please Show Me Bernd Paysan <bernd.paysan@gmx.de> - 2012-10-21 15:44 +0200
              Re: FORTH Trouble--Please Show Me Andrew Haley <andrew29@littlepinkcloud.invalid> - 2012-10-21 18:43 -0500
              Re: FORTH Trouble--Please Show Me "Rod Pemberton" <do_not_have@notemailnotz.cnm> - 2012-10-22 04:20 -0400

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