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Message from discussion Very poor Lisp performance
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Jens Axel Søgaard  
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 More options 14 Aug 2005, 19:54
Newsgroups: comp.lang.lisp
From: Jens Axel Søgaard <use...@soegaard.net>
Date: Sun, 14 Aug 2005 20:54:29 +0200
Local: Sun 14 Aug 2005 19:54
Subject: Re: Very poor Lisp performance

jayessay wrote:
> Jon Harrop <use...@jdh30.plus.com> writes:
>>Well, it's relative. Most of the other Lisp/Scheme implementations were two
>>orders of magnitude slower. Stalin gets even closer than SBCL.
> So do many CL implementations on many benchmarks when "properly"
> written.  Several have been shown here in the past.  Typically this
> starts with the original posting "showing" how bad CL is supposed to
> be when comparing optimized C/C++ with naively written CL.  It also
> often ends with the CL version beating the optimized C/C++ version.

> Most typical of all is that such benchmarks (including this ray
> tracing thing) don't have much of anything interesting to say about
> anything.

The comp.lang.lisp thread on Almabench comes into mind.
Rif summed it up pretty nicely:

     So what have we learned?  We confirmed what we pretty much
     knew: you can write a C program in CL, at which point the
     relative speed of your C and CL versions will depend on the
     relative quality of the code generation.

I am sure Jon can pick up some nice tricks in the thread.

<http://groups.google.com/group/comp.lang.lisp/msg/ae59ca28867ced78?hl...>

--
Jens Axel Søgaard


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