Re: builds are getting slower?

[Phillip Lord]

Paul Eggert <address@hidden> writes:

> John Wiegley wrote:
>> Which part of this is "make", and which "make check"?  Are you doing a
>> bootstrap build, or a "clean" build?
>
> When I reproduced the small part of the performance regression on Fedora
> x86-64 (the part that's been fixed since then, on emacs-25), I did this:
>
> ./autogen.sh
> ./configure CFLAGS='-g3 -O0'
> make -j5
> time make bootstrap
>
> So there's no 'make check', just a 'make bootstrap'.
>
> 'make check' is so slow that I normally don't run it these days. We should do
> what coreutils does, and run the expensive tests only if
> RUN_EXPENSIVE_TESTS=yes is in the environment.  coreutils has three categories
> of expensiveness, but Emacs could probably get by with two for now.


When you get to master, make check-maybe should be pretty quick
(although not from bootstrap) now.

In the ideal world, it would be nice to include this in the pre-commit
hook, although that might be impractical in the short term.

Phil