> Here is a patch I'm testing now:
Hi Jakub,
I also tested your patch to compare timings vs a newer patch (v8) I'll send soon
== patch v8 == make -j32 -k ==
check-fortran 4m58.178s
check-c++ ~10m
check-c ~10m
check 15m29.873s
== patch Jakub
check-c++ ~20m
check-fortran 3m31.237s
check-c 8m8
on the positive side, your patch provides a further speedup e.g. fortran and c
testing (where it splits things nicely). The libstdc++ bottleneck is not
solved, but I guess that is expected.
As you have presumably found as well, your patch introduces a number failures,
because some tests seem to have additional dependencies, either explicit or
implicit:
e.g. in gfortran.dg/binding_label_tests_10_main.f03
! { dg-do compile }
! This file must be compiled AFTER binding_label_tests_10.f03, which it
! should be because dejagnu will sort the files.
module binding_label_tests_10_main
in gfortran.dg/class_45b.f03
! { dg-do link }
! { dg-additional-sources class_45a.f03 }
This could clearly trigger as well in the current scheme of splitting, only we
have been lucky that dependencies seem to be 'well behaved' in having the same
initial letter in the filename.
Joost
