Re: emacs rendering comparisson between emacs23 and emacs26.3

[andrés ramírez]

Hi Guys.

Eli> OK, using Emacs 23 CC Mode with Emacs 26.3 makes the scroll
Eli> benchmark run only 10% slower than in Emacs 23.  So it seems like
Eli> most of the slow-down in the scroll benchmark is due to font-lock
Eli> of CC Mode.

This my updated benchmark:

Year 2016 (allwinner H3 Quad Core CPU @ 1GHz). In all cases, I
used xdisp.c from version 26.3 as the test file.

| EMACS      |       no font-lock | cc-mode from 23.4 (without cc-guess.el) |
|------------+--------------------+-----------------------------------------|
| emacs-23.4 | 22.041109085083008 |                       131.7112021446228 |
| emacs-26-3 |  34.09645438194275 |                       111.6537675857544 |

| EMACS 26.3 |      no font-lock |  built-in cc-mode |
|------------+-------------------+-------------------|
|  | 35.47433280944824 | 261.2694363594055 |