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TestEngineering/Performance/FAQ: Difference between revisions
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== How can I do a bisection? == | |||
If you're investigating a regression/improvement but for some reason it happened in a revision interval where the jobs aren't able to run or the revision contains multiple commits (this happens more often on mozilla-beta), you need to do a bisection in order to find the exact culprit. We usually adopt the binary search method. Say you have the revisions: | |||
- abcde1 - first regressed/improved value | |||
- abcde2 | |||
- abcde3 | |||
- abcde4 | |||
- abcde5 | |||
- abcde6 | |||
- abcde7 - last good value | |||