Zuul is the project gating and automation system that tests and merges changes as well as publishing releases and documentation.
When the cause of a test failure is nondeterministic, developers can request that it be retested by leaving a comment in Gerrit of the form "recheck bug #". This page collects those comments and displays graphs indicating the timing and frequency of these bugs.
Important reviews are ranked according to blueprint and bug priority.
During official bug days, this page is updated with real-time stats.
A test results dashboard.