Build Failure Rate from Build Times

from blog Two-Wrongs, | ↗ original
↗ original
Looking through the articles I’ve started but never finished, I stumbled over a cool experiment from a few years ago: When a build in a ci environment fails, it usually does so quicker than the time required for a full, successful build. This means we ought to be able to find the fraction of failed builds from the build times alone.11 Don’t ask when this would be useful. I don’t remember.