From: Ken Raeburn <raeburn@raeburn.org>
To: Emacs development discussions <emacs-devel@gnu.org>
Subject: Re: t and nil in pure memory?
Date: Wed, 18 Nov 2009 13:53:28 -0500 [thread overview]
Message-ID: <EFC1243E-C67B-4D95-B2B5-C3C240119B36@raeburn.org> (raw)
In-Reply-To: <jwvmy2nb6p0.fsf-monnier+emacs@gnu.org>
On Nov 15, 2009, at 20:34, Stefan Monnier wrote:
>> The big problem in GC is the trashing of the memory system due to
>> setting/resetting and reading the mark bits...
>
> Could be as well. In that case, maybe we should move all the markbits
> to separate bitvectors like we have for cons and floats.
There are lots of changes, major or minor, that might be worth
exploring. Prefetching, putting mark bits on different words or
pages, tri-color schemes, incremental marking, generational GC, etc.,
etc. But maybe we should also consider a more drastic change: Use
Hans Boehm's GC library. (Guile has recently switched to using it.
So if my Guile-Emacs work ever catches on, use of bdw-gc would happen
as a side effect.) If it doesn't simply make the performance someone
else's problem to focus on, it at least lets us share the workload
with a wider community.
Ken
next prev parent reply other threads:[~2009-11-18 18:53 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-11-11 20:23 t and nil in pure memory? Dan Nicolaescu
2009-11-11 22:56 ` Stefan Monnier
2009-11-12 8:21 ` Tobias C. Rittweiler
2009-11-12 15:22 ` Stefan Monnier
2009-11-13 5:24 ` Dan Nicolaescu
2009-11-13 14:39 ` Stefan Monnier
2009-11-14 11:23 ` Richard Stallman
2009-11-15 20:25 ` David Kastrup
2009-11-16 1:26 ` Stefan Monnier
2009-11-16 8:24 ` David Kastrup
2009-11-17 7:57 ` Richard Stallman
2009-11-17 13:16 ` Stefan Monnier
2009-11-17 13:55 ` David Kastrup
2009-11-18 12:11 ` Richard Stallman
2009-11-18 15:52 ` Stefan Monnier
2009-11-18 17:53 ` Daniel Colascione
2009-11-18 18:19 ` Stefan Monnier
2009-11-19 16:23 ` Richard Stallman
2009-11-19 20:08 ` Stefan Monnier
2009-11-20 4:12 ` Richard Stallman
2009-11-20 5:47 ` Chong Yidong
2009-11-22 6:48 ` Sam Steingold
2009-11-22 8:14 ` David Kastrup
2009-11-19 21:05 ` Dan Nicolaescu
2009-11-15 21:08 ` Dan Nicolaescu
2009-11-16 1:34 ` Stefan Monnier
2009-11-18 18:53 ` Ken Raeburn [this message]
2009-11-18 19:03 ` Daniel Colascione
2009-11-18 19:18 ` Tom Tromey
2009-11-18 19:13 ` Tom Tromey
2009-11-23 3:05 ` Ken Raeburn
2009-11-23 5:31 ` Stephen J. Turnbull
2009-11-24 16:03 ` Ken Raeburn
2009-11-24 16:28 ` Stefan Monnier
2009-11-19 1:01 ` Stefan Monnier
2009-11-12 4:06 ` Eli Zaretskii
2009-11-13 4:55 ` Richard Stallman
2009-11-13 8:37 ` Eli Zaretskii
2009-11-14 11:23 ` Richard Stallman
2009-11-14 11:46 ` Eli Zaretskii
2009-11-15 22:38 ` Richard Stallman
2009-11-13 4:56 ` Richard Stallman
-- strict thread matches above, loose matches on Subject: below --
2009-11-20 7:28 A. Soare
2009-11-20 8:09 ` David Kastrup
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