Re: Emacs design and architecture. How about copy-on-write?

[Po Lu]

Eli Zaretskii <eliz@gnu.org> writes:

> On the high-level design level, it should be clear without any need
> for benchmarking that separating redisplay from the main thread could
> bring benefits.  Isn't that what every GUI application out there does?
> So trying to think about that is always a good thing, IMO.

Au contraire, almost all GUI program limit redisplay to their main
threads.

Emacs is not a video game, for which the touchstone of performance is a
measurement taken in ``frames-per-second''.  It is a text editor that
only updates the display subsequent to an editing operation.  That is,
unless you perform more than 60 edits per second and expect an
intervening redisplay after each edit.

Benchmarking redisplay with such measurements is an exercise in fatuity.