https://bugs.freedesktop.org/show_bug.cgi?id=89014
--- Comment #4 from Axel Davy axel.davy@ens.fr --- Yes, I confirm the patch does the trick.
Also for the comment that wine was too getting same performance than glFinish, I checked twice, and I think this is just mere coincidence that it gets performance around that. In specific scenes, wine got better than that.