On Thu, 10 May 2012 20:23:08 +0200 Stefan Krah <ste...@bytereef.org> wrote: > Antoine Pitrou <solip...@pitrou.net> wrote: > > On Wed, 9 May 2012 11:26:29 +0200 > > Stefan Krah <ste...@bytereef.org> wrote: > > > Antoine Pitrou <solip...@pitrou.net> wrote: > > > > > _decimal is about 12% faster without threads, because the expensive > > > > > thread local context can be disabled. > > > > > > > > If you cached the last thread id along with the corresponding context, > > > > perhaps it could speed things up in most scenarios? > > > > > > Nice. This reduces the speed difference to about 4%! > > > > Note that you don't need the actual thread id, the Python thread state > > is sufficient: PyThreadState_GET should be a simply variable lookup in > > release builds. > > I've tried both ways now and the speed gain is roughly the same. > > Perhaps the interpreter as a whole is slightly faster --without-threads? > That would explain the remaining speed difference of 4%.
It may be. Can you try other benchmarks? Regards Antoine. _______________________________________________ Python-Dev mailing list Python-Dev@python.org http://mail.python.org/mailman/listinfo/python-dev Unsubscribe: http://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
