A Google Tech Talk by Bryan O’Sullivan, on Mercurial VCS.
Mercurial is a free distributed revision control system. It focuses on conceptual simplicity, robustness, and high performance. Well-known open source projects that use Mercurial include OpenSolaris, Xen, and One Laptop Per Child.This talk presents some of the advantages of using Mercurial to manage large, fast-moving projects. We give a brief overview of the techniques used to achieve, in Python, a level of performance that outshines most other revision control systems. Finally, we introduce some novel revision control techniques that take advantage of Mercurial’s extensibility and high performance.