From: Daniel Colascione <dancol@dancol.org>
To: Stefan Monnier <monnier@IRO.UMontreal.CA>
Cc: Philipp Stephani <p.stephani2@gmail.com>,
Paul Eggert <eggert@cs.ucla.edu>,
emacs-devel@gnu.org
Subject: Re: [Emacs-diffs] emacs-25 3eb93c0: Rely on conservative stack scanning to find "emacs_value"s
Date: Thu, 31 Mar 2016 12:24:27 -0700 [thread overview]
Message-ID: <56FD796B.4000703@dancol.org> (raw)
In-Reply-To: <jwvzitfr74u.fsf-monnier+emacsdiffs@gnu.org>
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On 03/30/2016 02:30 PM, Stefan Monnier wrote:
>> And zero years of experience with anything not statically linked into
>> Emacs core.
>
> Actually not exactly since we've used dynamic linking on the Windows
> side for a few years now.
>
> But I see no reason to expect any special issues showing up because of
> it in any case: none of the Lisp_Object low-level twiddling we do seems
> to depend in any way on whether code is linked statically or dynamically.
>
>>> The other scheme originally implemented was terribly inefficient
>> No it wasn't. It's one additional pointer dereference.
>
> I'm not talking about that. I'm talking about the cost of
> allocating/freeing those boxes to which you point.
That's cheap: you can do it with linear allocation out of an array. Why
would that be expensive?
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next prev parent reply other threads:[~2016-03-31 19:24 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20151130193446.22218.14685@vcs.savannah.gnu.org>
[not found] ` <E1a3UDm-0005my-HI@vcs.savannah.gnu.org>
2016-01-03 13:59 ` [Emacs-diffs] emacs-25 3eb93c0: Rely on conservative stack scanning to find "emacs_value"s Daniel Colascione
2016-01-03 15:45 ` Paul Eggert
2016-03-29 10:07 ` Philipp Stephani
2016-03-29 12:59 ` Stefan Monnier
2016-03-30 1:35 ` Paul Eggert
2016-03-30 18:26 ` Philipp Stephani
2016-03-30 18:28 ` Daniel Colascione
2016-03-30 18:42 ` Paul Eggert
2016-03-30 18:48 ` Daniel Colascione
2016-03-30 21:13 ` Stefan Monnier
2016-03-30 21:18 ` Daniel Colascione
2016-03-30 21:30 ` Stefan Monnier
2016-03-31 18:46 ` Philipp Stephani
2016-03-31 19:24 ` Daniel Colascione [this message]
2016-03-31 21:29 ` Stefan Monnier
2016-04-01 18:34 ` Daniel Colascione
2016-04-01 19:05 ` Stefan Monnier
2016-04-01 19:15 ` Daniel Colascione
2016-04-01 22:46 ` Stefan Monnier
2016-04-03 1:11 ` Daniel Colascione
2016-04-03 5:49 ` Stefan Monnier
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