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Re: C and Emacs Lisp code parts

From: Andy Moreton
Subject: Re: C and Emacs Lisp code parts
Date: Fri, 01 Jul 2016 14:05:29 +0100
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/25.0.95 (windows-nt)

On Fri 01 Jul 2016, Andreas Röhler wrote:

> On 01.07.2016 11:25, Eli Zaretskii wrote:
>> So yes, we need numbers to make rational decisions about this.
> Sorry, but that's irrational. Compare doesn't need numbers. To compare
> implementations in C an exec is needed - which doesn't exist yet. If written,
> the reason basically is gone, because C will be faster - unless something went
> wrong, which is a case for debugging rather than benchmarks.

Eli is right. You believe that C is always faster, but most programmers'
intuitions about performance are wrong.  Benchmarks and numbers give a
more objective basis for making rational design decisions.


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