From: Richard Stallman <rms@gnu.org>
To: "Stephen J. Turnbull" <stephen@xemacs.org>
Cc: tromey@redhat.com, monnier@iro.umontreal.ca, emacs-devel@gnu.org
Subject: Re: Patch for fields of `struct buffer'
Date: Tue, 01 Feb 2011 21:41:50 -0500 [thread overview]
Message-ID: <E1PkSfG-0007OT-72@fencepost.gnu.org> (raw)
In-Reply-To: <871v3s3qj3.fsf@uwakimon.sk.tsukuba.ac.jp> (stephen@xemacs.org)
> > I don't think preemptive thread switching is a sensible goal. It is
> > so much trouble that it isn't worth doing even in the long term.
>
> I don't think we will get to choose.
FWIW, Guido Van Rossum is about +0.5 in Richard's camp.
I am not saying anything against parallel programming as a general
issue. But the code needs to be written for that. The code in Emacs
wasn't. I devised the mechanism of the QUIT macro as a simple way to
avoid the need to confront lots of issues of the sort, "What happens
if Lisp code gets to run at some point in the middle of this?" I made
only Eval call GC as a simple way to avoid lots of issues of the sort,
"What happens if it GCs right HERE?"
To make Emacs safe for parallelism, those issues would need to be
confronted.
I won't say it is impossible. I do say it is a very large job,
which dwarfs that of handling variable bindings. It is also the sort
of job which is error prone.
--
Richard Stallman
President, Free Software Foundation
51 Franklin St
Boston MA 02110
USA
www.fsf.org, www.gnu.org
next prev parent reply other threads:[~2011-02-02 2:41 UTC|newest]
Thread overview: 123+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-01-27 20:18 Patch for fields of `struct buffer' Tom Tromey
2011-01-28 7:37 ` Eli Zaretskii
2011-01-28 8:58 ` Tom Tromey
2011-01-28 9:29 ` Eli Zaretskii
2011-01-29 12:50 ` Eli Zaretskii
2011-01-29 13:33 ` Juanma Barranquero
2011-01-29 13:42 ` Eli Zaretskii
2011-02-02 18:17 ` Juanma Barranquero
2011-02-02 19:51 ` Eli Zaretskii
2011-01-28 14:55 ` Stefan Monnier
2011-01-28 17:38 ` Tom Tromey
2011-01-28 18:27 ` Stefan Monnier
2011-01-28 18:42 ` Tom Tromey
2011-01-28 20:04 ` Stefan Monnier
2011-01-28 17:23 ` Kim F. Storm
2011-01-28 17:36 ` Tom Tromey
2011-01-28 18:29 ` Stefan Monnier
2011-01-29 2:34 ` Miles Bader
2011-01-29 3:58 ` Stefan Monnier
2011-01-29 16:18 ` Richard Stallman
2011-01-30 20:23 ` Tom Tromey
2011-01-31 4:04 ` Stefan Monnier
2011-01-31 14:29 ` Tom Tromey
2011-01-31 15:22 ` Stefan Monnier
2011-01-31 15:30 ` Tom Tromey
2011-01-31 17:02 ` Stefan Monnier
2011-01-31 18:38 ` Tom Tromey
2011-01-31 20:03 ` Stefan Monnier
2011-01-31 20:00 ` Stefan Monnier
2011-01-31 20:05 ` Tom Tromey
2011-01-31 20:40 ` Stefan Monnier
2011-01-31 16:46 ` David De La Harpe Golden
2011-01-31 19:04 ` Tom Tromey
2011-01-31 22:08 ` David De La Harpe Golden
2011-02-01 10:54 ` Daniel Colascione
2011-02-07 2:34 ` Tom Tromey
2011-02-07 19:48 ` concurrency suggestions for Gnus (was: Patch for fields of `struct buffer') Ted Zlatanov
2011-02-08 4:31 ` concurrency suggestions for Gnus Miles Bader
2011-02-08 12:55 ` Andy Moreton
2011-02-08 12:55 ` Justin Lilly
2011-02-08 14:41 ` bloom filters (was: concurrency suggestions for Gnus) Ted Zlatanov
2011-02-08 15:15 ` Stephen J. Turnbull
2011-02-10 8:17 ` concurrency suggestions for Gnus Lars Ingebrigtsen
2011-02-01 15:43 ` Patch for fields of `struct buffer' Stefan Monnier
2011-02-01 16:28 ` Helmut Eller
2011-02-07 2:47 ` Tom Tromey
2011-02-07 2:44 ` Tom Tromey
2011-02-07 8:05 ` Helmut Eller
2011-02-07 19:23 ` Richard Stallman
2011-02-08 16:30 ` Tom Tromey
2011-02-08 16:26 ` Tom Tromey
2011-02-08 17:57 ` Helmut Eller
2011-02-11 21:59 ` Tom Tromey
2011-02-12 9:16 ` Helmut Eller
2011-02-08 21:10 ` Stefan Monnier
2011-01-31 19:38 ` Richard Stallman
2011-02-01 18:26 ` Tom Tromey
2011-02-01 19:28 ` Paul Eggert
2011-02-01 19:42 ` Tom Tromey
2011-02-09 10:16 ` Jim Meyering
2011-02-10 4:42 ` Miles Bader
2011-02-01 20:34 ` Andreas Schwab
2011-02-01 21:56 ` Tom Tromey
2011-02-01 21:59 ` Tom Tromey
2011-02-02 0:44 ` Paul Eggert
2011-02-02 3:49 ` Stefan Monnier
2011-02-02 16:26 ` Tom Tromey
2011-02-02 16:37 ` Stefan Monnier
2011-02-08 15:07 ` Tom Tromey
2011-02-08 21:02 ` Stefan Monnier
2011-02-08 21:08 ` Tom Tromey
2011-02-08 21:21 ` Tom Tromey
2011-02-09 21:32 ` Stefan Monnier
2011-02-08 21:58 ` Andreas Schwab
2011-02-01 22:21 ` Stefan Monnier
2011-02-08 16:38 ` Tom Tromey
2011-02-11 21:48 ` Tom Tromey
2011-02-12 2:25 ` Stefan Monnier
2011-01-31 19:37 ` Richard Stallman
2011-01-31 19:57 ` Tom Tromey
2011-02-01 2:42 ` Tom Tromey
2011-02-01 4:09 ` Eli Zaretskii
2011-02-01 16:40 ` Richard Stallman
2011-02-01 16:44 ` Tom Tromey
2011-02-02 2:42 ` Richard Stallman
2011-01-31 20:30 ` Stefan Monnier
2011-01-31 20:49 ` Tom Tromey
2011-01-31 21:54 ` Stefan Monnier
2011-02-13 19:01 ` Richard Stallman
2011-02-14 17:47 ` Stefan Monnier
2011-02-14 19:34 ` Lennart Borgman
2011-02-15 15:58 ` Richard Stallman
2011-02-15 20:41 ` Stefan Monnier
2011-02-01 16:39 ` Richard Stallman
2011-02-01 12:09 ` Stephen J. Turnbull
2011-02-02 2:41 ` Richard Stallman [this message]
2011-02-01 10:26 ` Daniel Colascione
2011-02-01 12:10 ` Stephen J. Turnbull
2011-02-01 14:23 ` Lennart Borgman
2011-02-01 16:19 ` Stephen J. Turnbull
2011-02-01 17:08 ` Lennart Borgman
2011-02-01 19:57 ` Daniel Colascione
2011-02-01 20:06 ` Daniel Colascione
2011-02-01 16:41 ` Richard Stallman
2011-02-01 16:51 ` Tom Tromey
2011-02-02 2:42 ` Richard Stallman
2011-02-02 4:16 ` Tom Tromey
2011-02-02 5:04 ` Stefan Monnier
2011-02-11 21:51 ` Tom Tromey
2011-02-12 23:28 ` Richard Stallman
2011-02-13 20:26 ` Installing `struct buffer' patch (Was: Patch for fields of `struct buffer') Tom Tromey
2011-02-14 16:42 ` Installing `struct buffer' patch Chong Yidong
2011-02-14 16:48 ` Tom Tromey
2011-02-14 16:52 ` Chong Yidong
2011-02-14 16:58 ` Tom Tromey
2011-02-14 17:36 ` Stefan Monnier
2011-02-15 15:50 ` Chong Yidong
2011-02-16 14:55 ` Tom Tromey
2011-02-15 15:57 ` Richard Stallman
2011-02-15 4:07 ` Glenn Morris
2011-02-15 14:28 ` Tom Tromey
2011-02-01 20:04 ` Patch for fields of `struct buffer' Daniel Colascione
2011-02-02 2:43 ` Richard Stallman
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