From: ludo@gnu.org (Ludovic Courtès)
To: Andreas Rottmann <a.rottmann@gmx.at>
Cc: guile-devel@gnu.org
Subject: Re: [PATCH] Take some lowhanging fruit to speed up R6RS fixnum operations
Date: Sun, 27 Mar 2011 17:19:18 +0200 [thread overview]
Message-ID: <87pqpctwuh.fsf@gnu.org> (raw)
In-Reply-To: <8739mb1jl6.fsf@gmx.at> (Andreas Rottmann's message of "Fri, 25 Mar 2011 13:16:21 +0100")
Hello,
Andreas Rottmann <a.rottmann@gmx.at> writes:
> So, that's around 5% improvment (on the ZIP benchmark) for an IMHO
> significantly more hackish implementation. I'm not sure that's worth
> it. WDYT?
Was it with ‘fixnum?’ inline, or with the ‘fixnum?’ instruction?
It’s ironic that while R6RS fixnums are a performance hack, they end up
being less efficient than unbounded integers in Guile.
Do you know how other implementations deal with that?
Thanks,
Ludo’.
next prev parent reply other threads:[~2011-03-27 15:19 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-03-22 23:20 Take some lowhanging fruit to speed up R6RS fixnum operations Andreas Rottmann
2011-03-22 23:20 ` [PATCH] " Andreas Rottmann
2011-03-24 21:51 ` Ludovic Courtès
2011-03-24 23:42 ` Andreas Rottmann
2011-03-25 12:16 ` Andreas Rottmann
2011-03-27 15:19 ` Ludovic Courtès [this message]
2011-03-27 22:20 ` Andreas Rottmann
2011-03-29 11:05 ` Andy Wingo
2011-03-30 1:37 ` Andreas Rottmann
2011-03-30 10:31 ` Andreas Rottmann
2011-03-30 10:58 ` Andreas Rottmann
2011-04-02 17:42 ` R6RS fixnum arithmetic optimizations Andreas Rottmann
2011-04-02 17:42 ` [PATCH 1/3] Add a few benchmarks for R6RS fixnum arithmetic Andreas Rottmann
2011-04-02 17:42 ` [PATCH 2/3] Several optimizations " Andreas Rottmann
2011-04-02 17:42 ` [PATCH 3/3] Add `fixnum?' VM primitive Andreas Rottmann
2011-04-04 21:53 ` Andy Wingo
2011-04-05 0:14 ` Andreas Rottmann
2011-04-06 12:42 ` define-inlinable Ludovic Courtès
2011-04-06 21:30 ` define-inlinable Andreas Rottmann
2011-04-06 22:24 ` define-inlinable Ludovic Courtès
2011-04-11 16:56 ` define-inlinable Andy Wingo
2011-04-11 20:01 ` define-inlinable Ludovic Courtès
2011-04-11 21:05 ` define-inlinable Andy Wingo
2011-04-11 22:11 ` define-inlinable Andreas Rottmann
2011-04-07 15:57 ` [PATCH 3/3] Add `fixnum?' VM primitive Ludovic Courtès
2011-04-04 21:28 ` Take some lowhanging fruit to speed up R6RS fixnum operations Andy Wingo
2011-04-04 22:00 ` Andreas Rottmann
2011-04-04 22:12 ` Andy Wingo
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