AI writes code faster than Uber can merge it: how SubmitQueue was rebuilt for the AI era
AI Engineer · youtube · 2026-11-09
Uber's Preetam Dwivedi and Manjari Akella explain how AI-driven code changes from 5,000+ developers landing tens of thousands of commits weekly pushed SubmitQueue to its limits. Fixes include admission gating separating cheap from expensive changes, a deferral queue to reduce developer wait, and conflict relaxation for more parallel runs, plus Stovepipe post-merge checks and a shift from always-green trunk to a hybrid approach.
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