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Re: Removal of unexec support from glibc malloc
From: |
Daniel Colascione |
Subject: |
Re: Removal of unexec support from glibc malloc |
Date: |
Mon, 18 Jan 2016 11:54:53 -0800 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.4.0 |
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.
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- Re: Removal of unexec support from glibc malloc, (continued)
- Re: Removal of unexec support from glibc malloc, Paul Eggert, 2016/01/18
- Re: Removal of unexec support from glibc malloc, John Wiegley, 2016/01/18
- Re: Removal of unexec support from glibc malloc, Daniel Colascione, 2016/01/18
- Re: Removal of unexec support from glibc malloc, Zack Weinberg, 2016/01/18
- Re: Removal of unexec support from glibc malloc, Daniel Colascione, 2016/01/18
- Re: Removal of unexec support from glibc malloc, Joseph Myers, 2016/01/18
- Re: Removal of unexec support from glibc malloc, Florian Weimer, 2016/01/18
- Re: Removal of unexec support from glibc malloc, Paul Eggert, 2016/01/18
- Re: Removal of unexec support from glibc malloc,
Daniel Colascione <=
- Re: Removal of unexec support from glibc malloc, Eli Zaretskii, 2016/01/18
- Re: Removal of unexec support from glibc malloc, Daniel Colascione, 2016/01/18
- Re: Removal of unexec support from glibc malloc, Philipp Stephani, 2016/01/18
- Re: Removal of unexec support from glibc malloc, Daniel Colascione, 2016/01/18
- Re: Removal of unexec support from glibc malloc, Óscar Fuentes, 2016/01/18
- Re: Removal of unexec support from glibc malloc, Stefan Monnier, 2016/01/23
- Re: Removal of unexec support from glibc malloc, Wolfgang Jenkner, 2016/01/18
- Re: Removal of unexec support from glibc malloc, Eli Zaretskii, 2016/01/18
- Re: Removal of unexec support from glibc malloc, Wolfgang Jenkner, 2016/01/18
- Re: Removal of unexec support from glibc malloc, Paul Eggert, 2016/01/18