Re: makeinfo 5.0 is 34x slower when building Emacs info

[Paul Eggert]

As a heads-up, I've attacked the problem for GNU Emacs
by rejiggering its makefile so that the info files can
be built in parallel.  This brings the total time for "make info"
on my 4-core host down from 224 seconds to 86 seconds.  Still
pretty slow compared to the old 6.5 seconds, I'm afraid.
The main bottleneck is that a couple of the Emacs manuals
are large and their info files can't be parallelized.

Here's the Emacs patch that parallelized the doc builds:

http://bzr.savannah.gnu.org/lh/emacs/trunk/revision/111850

I'm writing this not to complain (your efforts in improving
Texinfo are appreciated) but just to help motivate any
performance-improving techniques that might be coming
down the pike.