Discussion:
What has more elisp code: GNU Emacs or Xemacs?
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Akshay
2020-03-07 16:15:21 UTC
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Hi,

I have read online that Xemacs is faster than Emacs because more of it is written in C. Is this true? My question is - which editor has more elisp code in its codebase: Emacs or Xemacs?

Regards,
Akshay
Johann 'Myrkraverk' Oskarsson
2020-04-17 16:37:12 UTC
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Post by Akshay
Hi,
I have read online that Xemacs is faster than Emacs because more of it is written in C. Is this true? My question is - which editor has more elisp code in its codebase: Emacs or Xemacs?
Both are written in C, though the internals are different. I don't know
which one should count as more elisp; Emacs doesn't seem to different-
iate between core editor elisp and extensions.

It could be the case that XEmacs has more C code than Emacs, but it also
has features not in Emacs: gutters, specifiers, extents. All of these
are implemented in C. In particular, extents have been described as
slower than the "equivalent" in Emacs.

So, I don't think amount of C code has any bearing on the speed. You're
best off making your own benchmarks, if you can.
--
Johann | email: invalid -> com | www.myrkraverk.com/blog/
I'm not from the Internet, I just work there. | twitter: @myrkraverk
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