Discover how a performance regression detection team revolutionized their workflow by developing a multi-axis arbitrary bisection tool inspired by "git bisect". Learn about the challenges faced in identifying performance regressions in QEMU builds, where each build takes 8-12 hours to complete. Explore the innovative solution that addresses the complexities of analyzing changes within a week's timeframe, including multiple package updates in a distro. Gain insights into the implementation of this tool in Jenkins pipelines, and understand how it significantly reduces developer burden while increasing the speed and reliability of pinpointing regression-causing events. Dive into the practical applications of this open-source tool, available at https://github.com/ldoktor/bisecter, and see how it can be applied beyond its original use case.