Cc: address@hidden, address@hidden, address@hidden
From: Daniel Colascione <address@hidden>
Date: Tue, 1 Nov 2016 10:18:58 -0700
CPU-intensive threads that cannot manipulate Lisp objects (not run
Lisp, but create and destroy Lisp objects) are not very useful in
Emacs.
Redisplay itself can run without invoking Lisp _most_ of the time
No, it can't. It calls Lisp almost all the time. The two main places
where that usually happens is JIT font-lock and mode-line display.
Maybe you are thinking about "emacs -Q" which is idle, but that's not
a very interesting use case, when multi-threading is being discussed.
I don't want to argue about your other arguments because I don't see a
point.