unofficial mirror of guile-devel@gnu.org 
 help / color / mirror / Atom feed
From: ludo@gnu.org (Ludovic Courtès)
To: guile-devel@gnu.org
Subject: Re: guile performance - Ackermann function: way slower than emacs, slower still if compiled
Date: Sat, 08 Aug 2009 23:52:46 +0200	[thread overview]
Message-ID: <87ab2aotw1.fsf@gnu.org> (raw)
In-Reply-To: m3prbaaava.fsf@pobox.com

Hello!

Andy Wingo <wingo@pobox.com> writes:

> Perhaps the deal is that 1+ is not being inlined. It seems to be calling
> out to the 1+ procedure, which is a primitive, actually making it a
> bit slower. I'll see what I can do.

Currently, invoking subrs conses, which is Bad(TM).  Code that keeps
invoking `1+' and `1-' must suffer from this.

Thanks,
Ludo'.





  parent reply	other threads:[~2009-08-08 21:52 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-08-04  9:28 guile performance - Ackermann function: way slower than emacs, slower still if compiled Ken Raeburn
2009-08-04 13:52 ` Marijn Schouten (hkBst)
2009-08-04 15:56   ` Ken Raeburn
2009-08-05  9:06 ` Andy Wingo
2009-08-05 14:06   ` Ken Raeburn
2009-08-06  7:31     ` Ken Raeburn
2009-08-26 22:39       ` Neil Jerram
2009-08-06 16:30     ` entering and leaving guile mode, and GC stack protection (was Re: guile performance - Ackermann function: way slower than emacs, slower still if compiled) Ken Raeburn
2009-08-12 22:06       ` entering and leaving guile mode, and GC stack protection Andy Wingo
2009-08-14  7:58         ` Ludovic Courtès
2009-08-08 21:52   ` Ludovic Courtès [this message]
2009-08-12 22:28     ` guile performance - Ackermann function: way slower than emacs, slower still if compiled Andy Wingo
2009-08-05 10:42 ` Andy Wingo
2009-08-06 15:59   ` Andy Wingo
2009-08-07 17:27     ` Andy Wingo
2009-08-05 11:15 ` Andy Wingo

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

  List information: https://www.gnu.org/software/guile/

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=87ab2aotw1.fsf@gnu.org \
    --to=ludo@gnu.org \
    --cc=guile-devel@gnu.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).