Hello Jim, * Jim Meyering wrote on Sun, Aug 12, 2007 at 12:46:20PM CEST: > > On a related note, it'd sure be nice if "make -j4 check" would run its > tests in parallel. Especially on an SMP system, and/or when some > tests sleep for a few (interminable :-) seconds. > > Of course, this might not be trivial, especially trying to keep > the resulting Makefile.in portable. However, even if it means > I'd need to use a special option to generate a GNU-make-only > Makefile.in, I'd happily use the result for day to day work.
IIRC, Akim Demaille posted a patch a while ago on an automake list for this, GNU make-specific. I don't recall how much work was left to do, but on my list it's a bit on the far end. > Currently, the check-TESTS rule is just a big for-loop. > Recording pass, fail, xfail, and skip subtotals in parallel might > be a challenge, but I'd be happy to sacrifice those along > with portability, in return for parallelized tests. When in doubt, let 'make' do the parallelism for you; e.g., each status output of a test to be run is a target (file), do all those, collect (read) the results serially afterwards. I think Paul suggested something similar already, but that could also have been for Autotest. Hope that helps. Cheers, Ralf
