From: Daniel Colascione <dancol@dancol.org>
To: Paul Eggert <eggert@cs.ucla.edu>,
Florian Weimer <fweimer@redhat.com>,
GNU C Library <libc-alpha@sourceware.org>,
Emacs Development <Emacs-devel@gnu.org>
Subject: Re: Removal of unexec support from glibc malloc
Date: Mon, 18 Jan 2016 11:54:53 -0800 [thread overview]
Message-ID: <569D430D.80509@dancol.org> (raw)
In-Reply-To: <569D4207.4060209@cs.ucla.edu>
[-- Attachment #1: Type: text/plain, Size: 732 bytes --]
On 01/18/2016 11:50 AM, Paul Eggert wrote:
> John Wiegley wrote:
>> Can you elaborate what unexec has been doing for us up till now, and what
>> living without it will entail in terms of both technical content and work
>> required?
>
> unexec lets Emacs save much of its internal state into an executable
> that will start more quickly than an Emacs that needs to regenerate that
> internal state from source files. Originally, unexec also made the
> internal-state read-only, which helped performance significantly long
> ago; nowadays the performance is no longer worth the porting hassle so
> Emacs no longer does that.
Emacs does go to a lot of trouble to avoid taking COW faults on
purespace objects though.
[-- Attachment #2: OpenPGP digital signature --]
[-- Type: application/pgp-signature, Size: 819 bytes --]
next prev parent reply other threads:[~2016-01-18 19:54 UTC|newest]
Thread overview: 77+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-18 12:33 Removal of unexec support from glibc malloc Florian Weimer
2016-01-18 19:20 ` John Wiegley
2016-01-18 20:27 ` Florian Weimer
2016-01-19 13:52 ` Should Glibc API be changed? Richard Stallman
2016-01-19 16:40 ` Florian Weimer
2016-01-20 2:56 ` Richard Stallman
2016-01-20 17:07 ` Florian Weimer
2016-01-23 5:56 ` Removal of unexec support from glibc malloc Stefan Monnier
2016-01-26 22:08 ` Florian Weimer
2016-01-18 22:45 ` Ali Bahrami
2016-01-18 23:45 ` John Wiegley
2016-01-19 0:45 ` Wolfgang Jenkner
2016-01-19 0:56 ` Ali Bahrami
2016-01-19 1:14 ` Dmitry Gutov
2016-01-19 1:44 ` Ken Raeburn
2016-01-19 1:59 ` Dmitry Gutov
2016-01-19 3:10 ` Ken Raeburn
2016-01-19 3:17 ` Dmitry Gutov
2016-01-19 7:03 ` Florian Weimer
2016-01-19 8:36 ` Ken Raeburn
2016-01-19 16:42 ` Eli Zaretskii
2016-01-19 1:45 ` Ali Bahrami
2016-01-19 2:03 ` Dmitry Gutov
2016-01-19 16:04 ` Eli Zaretskii
2016-01-20 2:57 ` Richard Stallman
2016-01-20 7:43 ` David Caldwell
2016-01-20 9:35 ` Eli Zaretskii
2016-01-21 3:01 ` Richard Stallman
2016-01-21 3:00 ` Richard Stallman
2016-01-19 15:58 ` Eli Zaretskii
2016-01-19 20:37 ` Fabrice Popineau
2016-01-20 2:56 ` Richard Stallman
2016-01-23 13:51 ` Michael Sperber
2016-01-23 20:36 ` Marcus Crestani
2016-01-19 23:53 ` Sam Steingold
2016-01-18 19:24 ` Paul Eggert
2016-01-18 19:30 ` John Wiegley
2016-01-18 19:47 ` Daniel Colascione
2016-01-18 19:54 ` Zack Weinberg
2016-01-18 19:55 ` Daniel Colascione
2016-01-18 22:27 ` Joseph Myers
2016-01-18 23:16 ` Florian Weimer
2016-01-18 19:50 ` Paul Eggert
2016-01-18 19:54 ` Daniel Colascione [this message]
2016-01-18 20:02 ` Eli Zaretskii
2016-01-18 20:05 ` Daniel Colascione
2016-01-18 22:10 ` Philipp Stephani
2016-01-18 22:12 ` Daniel Colascione
2016-01-18 22:36 ` Óscar Fuentes
2016-01-23 5:50 ` Stefan Monnier
2016-01-18 20:24 ` Wolfgang Jenkner
2016-01-18 20:29 ` Eli Zaretskii
2016-01-18 20:36 ` Wolfgang Jenkner
2016-01-18 22:42 ` Paul Eggert
2016-01-18 23:23 ` Florian Weimer
2016-01-19 6:31 ` Paul Eggert
2016-01-19 9:27 ` Florian Weimer
2016-01-19 10:14 ` Florian Weimer
2016-01-19 13:27 ` Wolfgang Jenkner
2016-01-19 16:58 ` Eli Zaretskii
2016-01-30 9:38 ` Paul Eggert
2016-01-18 22:44 ` Florian Weimer
2016-01-19 3:48 ` Eli Zaretskii
2016-01-23 5:49 ` Stefan Monnier
2016-01-23 7:00 ` Eli Zaretskii
2016-01-23 15:29 ` Stefan Monnier
2016-01-23 15:50 ` Eli Zaretskii
2016-01-23 22:19 ` Stefan Monnier
2016-01-23 22:52 ` Richard Stallman
2016-01-26 22:17 ` Florian Weimer
2016-01-27 1:32 ` Stefan Monnier
2016-01-27 3:38 ` Eli Zaretskii
2016-01-27 9:04 ` Florian Weimer
2016-01-27 16:02 ` Eli Zaretskii
2016-01-27 22:54 ` Richard Stallman
2016-01-27 22:52 ` Richard Stallman
2016-01-18 23:15 ` Florian Weimer
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/emacs/
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=569D430D.80509@dancol.org \
--to=dancol@dancol.org \
--cc=Emacs-devel@gnu.org \
--cc=eggert@cs.ucla.edu \
--cc=fweimer@redhat.com \
--cc=libc-alpha@sourceware.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.
Code repositories for project(s) associated with this public inbox
https://git.savannah.gnu.org/cgit/emacs.git
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).