Re: FYI: coreutils/gnulib-tests to run in parallel

[Ralf Wildenhues]

Hi Jim,

* Jim Meyering wrote on Fri, Jun 13, 2008 at 09:22:31AM CEST:
> Just a heads up that I'll soon be making coreutils run its gnulib-tests/
> in parallel.

Cool.

> Actually, the difference in total run time isn't as great as I'd hoped it
> would be due to two relatively long-running tests, test-malloca and
> test-stat-time.

Let them run early.  For GNU make 3.80 or newer, you can use order-only
dependencies, roughly like
  $(all_other_logs): | test-stat-time.log test-malloca.log

Just ordering the build of some huge objects in GCC allowed to shave 30%
build time off a parallel build:
<http://gcc.gnu.org/ml/gcc-patches/2008-03/msg01888.html>

Hmm, where to take the time to merge check.mk into Automake ...

Cheers,
Ralf