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From: ludovic.courtes@laas.fr (Ludovic Courtès)
To: "Kjetil S. Matheussen" <k.s.matheussen@notam02.no>
Cc: Bill Schottstaedt <bil@ccrma.Stanford.EDU>, guile-devel@gnu.org
Subject: Re: Experience with guile + Boehm GC in SND (Re: New versions of rt-compiler.scm, rt-examples.scm and rt.tex
Date: Tue, 05 Jun 2007 09:53:11 +0200	[thread overview]
Message-ID: <87hcpmj0rc.fsf@laas.fr> (raw)
In-Reply-To: <Pine.LNX.4.64.0706041947280.16860@ttleush> (Kjetil S. Matheussen's message of "Mon, 4 Jun 2007 20:00:07 +0200 (CEST)")

Hi,

"Kjetil S. Matheussen" <k.s.matheussen@notam02.no> writes:

> and for guile I think you use -rpath? :

Yes.

> No. But I have ran a series of benchmarks now:

Thanks for doing this!

To sum up, BGC is always slower but usually more memory-efficient than
GGC.

In Guile + libgc, you could try adding:

  GC_set_free_space_divisor (2);

right before `GC_expand_hp ()' in `libguile/gc.c'.  AIUI, this would
trade memory for CPU time.

Ideally, we'd need a better benchmarking framework, where each benchmark
is run tens of times and where both the average and variance are
reported.  Unfortunately, I don't have much time to work on it right
now.

Thanks,
Ludovic.


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      parent reply	other threads:[~2007-06-05  7:53 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <Pine.LNX.4.64.0706031204540.9006@ttleush>
     [not found] ` <20070603110930.M29119@ccrma.Stanford.EDU>
2007-06-03 14:57   ` Experience with guile + Boehm GC in SND (Re: New versions of rt-compiler.scm, rt-examples.scm and rt.tex Kjetil Svalastog Matheussen
2007-06-03 16:33     ` Kjetil Svalastog Matheussen
2007-06-03 20:07       ` Kjetil Svalastog Matheussen
2007-06-04 11:39         ` Ludovic Courtès
2007-06-04 12:08           ` Kjetil S. Matheussen
2007-06-04 12:45             ` Kjetil S. Matheussen
2007-06-04 13:22             ` Ludovic Courtès
2007-06-04 16:11               ` Kjetil S. Matheussen
2007-06-04 16:50                 ` Ludovic Courtès
2007-06-04 18:00                   ` Kjetil S. Matheussen
2007-06-04 18:14                     ` Kjetil S. Matheussen
2007-06-05  7:53                     ` Ludovic Courtès [this message]

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