On Sun, 28 Aug 2016 14:55:37 +0200 Dimitry Andric <d...@freebsd.org> wrote:
> On 28 Aug 2016, at 02:10, K. Macy <km...@freebsd.org> wrote: > > > >> The problem here is that Phoronix took a Beta version of FreeBSD 11. > >> Beta versions have a lot of debugging (malloc, invariants, witness) > >> options enabled which make it significantly slower than release > >> versions. This is even obviously when you run a Beta as a desktop. It > >> just feels much slower. > > > > > > I don't know what was going on in these particular tests, but in a > > more recent benchmarking run > > -https://www.phoronix.com/scan.php?page=article&item=freebsd11-clang-gcc&num=1 > > - you're seeing the result of openmp being disabled in base. The clang > > maintainer for src refuses to include libomp as required for -fopenmp > > because nothing in base requires it. > > Come on, this is nonsense. I have indicated earlier that I would have > liked to import openmp into base, but this was shot down precisely for > that reason: nothing in base uses it. > > So for now, the solution is simply: install one of the llvm ports, and > use it. These have configuration setting to install every optional > component from the LLVM project. > > -Dimitry > With 11, one can even simply install devel/openmp which will only install the libopenmp bits from llvm, and after that, base cc can do openmp. -- Matthieu Volat <ma...@alkumuna.eu>
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