Monitoring software performance evolution is a daunting and challenging task.
This paper proposes a lightweight visualization technique that contrasts source
code variation with the memory consumption and execution time of a particular
benchmark. The visualization fully integrates with the commit graph as common
in many software repository managers. We illustrate the usefulness of our
approach with two application examples. We expect our technique to be
beneficial for practitioners who wish to easily review the impact of source
code commits on software performance.