From: Richard Stallman <rms@gnu.org>
To: Daniel Colascione <dan.colascione@gmail.com>
Cc: tromey@redhat.com, emacs-devel@gnu.org
Subject: Re: Patch for fields of `struct buffer'
Date: Tue, 01 Feb 2011 21:43:07 -0500 [thread overview]
Message-ID: <E1PkSgV-0007iA-03@fencepost.gnu.org> (raw)
In-Reply-To: <4D486762.4060903@gmail.com> (message from Daniel Colascione on Tue, 01 Feb 2011 12:04:50 -0800)
If you link against GNU Pth, the threading primitives become practically
free aside from the few hundred pointers referring to global Lisp
variables. I doubt the aggregate impact of following those indirections
would have much of an impact over all the pointer-chasing Lisp code
already performs. (How many cons cell are used for the output of
parse-partial-sexp?)
Emacs is sometimes rather slow already on this machine.
One approach successfully applied to other systems that make assumptions
about a lack of preemptive concurrency is to put large locks around the
sensitive portions and gradually split these locks up over time as the
code is improved. Subrs not specially marked as concurrency-safe could
be made to automatically take such a lock on entry,
I don't know how well that would work out in practice in Emacs,
but someone could give it a try.
--
Richard Stallman
President, Free Software Foundation
51 Franklin St
Boston MA 02110
USA
www.fsf.org, www.gnu.org
prev parent reply other threads:[~2011-02-02 2:43 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
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 [this message]
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