[Python-Dev] Point of building without threads?

[Antoine Pitrou]

On Wed, 9 May 2012 11:26:29 +0200
Stefan Krah <stefan at bytereef.org> wrote:
> Antoine Pitrou <solipsis at 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.

Regards

Antoine.