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Re: In support of guile-emacs
From: |
Taylan Ulrich Bayırlı/Kammer |
Subject: |
Re: In support of guile-emacs |
Date: |
Mon, 19 Oct 2015 18:56:47 +0200 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/24.5 (gnu/linux) |
Alan Mackenzie <address@hidden> writes:
> Hello, Daniel.
>
> On Mon, Oct 19, 2015 at 07:14:55AM -0700, Daniel Colascione wrote:
>> On 10/19/2015 03:24 AM, Alan Mackenzie wrote:
>> > Hello, Xue.
>
>> > On Mon, Oct 19, 2015 at 09:07:59AM +0800, Xue Fuqiao wrote:
>
>> >> guile-emacs replaces Emacs's own Emacs Lisp engine with Guile's (without
>> >> breaking backward compatibility). So:
>
>> >> * Emacs Lisp will execute faster (Guile VM bytecode is more efficient)
>
>> > Just as a matter of interest, approximately how much faster is Guile
>> > bytecode than Emacs bytecode? Are we talking about 10%, 20%, 50%, a
>> > factor of 2, or even higher?
>
>> > If that speed increase was significant, it might be worth incorporating
>> > Guile's bytecode into Emacs just for that reason, regardless of any of
>> > the other stuff.
>
>> Or simply making completely independent and custom-tailored improvements
>> to the Emacs bytecode compiler and interpreter itself. There's no reason
>> to imagine that the only way to improve performance there is to move to
>> a completely different runtime.
>
> Indeed not. Lessons could be learnt from Guile, perhaps. But how much
> faster is Guile bytecode?
For the record, the unreleased Guile 2.2 uses a register VM (instead of
a stack VM), and has a different intermediate language on which more
optimization is done. There's prospect for native code compilation too
for the future, from what I gather. So Guile's performance isn't
exactly fixed at its current state, and improvements are happening at a
pretty impressive rate.
Taylan
- In support of guile-emacs, Christopher Allan Webber, 2015/10/18
- Re: In support of guile-emacs, Artur Malabarba, 2015/10/18
- Re: In support of guile-emacs, Xue Fuqiao, 2015/10/18
- Re: In support of guile-emacs, Alan Mackenzie, 2015/10/19
- Re: In support of guile-emacs, David Kastrup, 2015/10/19
- Re: In support of guile-emacs, Daniel Colascione, 2015/10/19
- Re: In support of guile-emacs, Alan Mackenzie, 2015/10/19
- Re: In support of guile-emacs,
Taylan Ulrich Bayırlı/Kammer <=
- Re: In support of guile-emacs, Alan Mackenzie, 2015/10/19
- Re: In support of guile-emacs, Taylan Ulrich Bayırlı/Kammer, 2015/10/19
- Re: In support of guile-emacs, Dmitry Gutov, 2015/10/19
- Re: In support of guile-emacs, Taylan Ulrich Bayırlı/Kammer, 2015/10/19
- Re: In support of guile-emacs, Alan Mackenzie, 2015/10/19
- Re: In support of guile-emacs, Taylan Ulrich Bayırlı/Kammer, 2015/10/19
- Re: In support of guile-emacs, Alan Mackenzie, 2015/10/20
- Re: In support of guile-emacs, Taylan Ulrich Bayırlı/Kammer, 2015/10/20
- Re: In support of guile-emacs, John Wiegley, 2015/10/20
- Re: In support of guile-emacs, Taylan Ulrich Bayırlı/Kammer, 2015/10/21