Re: [PATCH] Re: Bignum performance (was: Shrinking the C core)

[Emanuel Berg]

Ihor Radchenko wrote:

>> What one should do then is run it for 100 hours for 100
>> Emacs users' arbitrary Emacs use, then we would see what
>> everyone was up to in the C part as well.
>
> There are known parts of Emacs C code that could see
> performance optimization. But we need someone to actually go
> ahead and provide patches.

So to make Emacs faster, we need to:

1. Fix certain individual and identified areas in C that are
   currently slow for known reasons of the properties of the
   algorithms and/or data structure involved.

2. On a system level, find and change areas in C that have to
   do with how the Lisp model is implemented and
   upheld generally.

3. I don't know where the native/byte compiler would go from
   there, it it depends how big changes are in step 2.

4. Actual and existing Elisp code doesn't have to be changed
   a lot, and it would still be Elisp only it would be
   compiled with the methods from the CL world and in
   particular from SBCL.

5. This would not be a complete integration between Elisp and
   CL, but since the methods, tools and supply chain from CL
   would now be working for Elisp, it would be a big step
   towards such a possible integration in the future,
   if desired.

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