TestEngineering/Performance/Sheriffing/Tree FAQ: Difference between revisions

Many times we backout or hotfix code as it is causing a build failure or unittest failure.  The [[https://wiki.mozilla.org/Sheriffing/Sheriff_Duty Sheriff team]] handles this process in general and backouts/hotfixes are usually done within 3 hours (i.e. we won't have [[https://wiki.mozilla.org/Buildbot/Talos/Sheriffing/Noise_FAQ#Why_do_we_need_12_future_data_points 12 future changesets]]) of the original fix.  As you can imagine we could get an alert 6 hours later and go to look at the graph and see there is no regression, instead there is a temporary spike for a few data points.